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Add database drivers

This commit is contained in:
Christine Dodrill 2015-10-08 00:01:23 -07:00
parent e5195dd929
commit 0c89a9fd40
66 changed files with 170454 additions and 0 deletions
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12
vendor/manifest vendored
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@ -25,6 +25,18 @@
"revision": "ad06026c2b081cb9a2a563d3078f2ce67389d9fa",
"branch": "master"
},
{
"importpath": "github.com/lib/pq",
"repository": "https://github.com/lib/pq",
"revision": "ffe986aba3e6cfcded8b06615965941408891ef0",
"branch": "master"
},
{
"importpath": "github.com/mattn/go-sqlite3",
"repository": "https://github.com/mattn/go-sqlite3",
"revision": "b808f01f660667b1510acf216aa2b9fe7f555ddb",
"branch": "master"
},
{
"importpath": "github.com/robfig/cron",
"repository": "https://github.com/robfig/cron",

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vendor/src/github.com/lib/pq/CONTRIBUTING.md vendored Normal file
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## Contributing to pq
`pq` has a backlog of pull requests, but contributions are still very
much welcome. You can help with patch review, submitting bug reports,
or adding new functionality. There is no formal style guide, but
please conform to the style of existing code and general Go formatting
conventions when submitting patches.
### Patch review
Help review existing open pull requests by commenting on the code or
proposed functionality.
### Bug reports
We appreciate any bug reports, but especially ones with self-contained
(doesn't depend on code outside of pq), minimal (can't be simplified
further) test cases. It's especially helpful if you can submit a pull
request with just the failing test case (you'll probably want to
pattern it after the tests in
[conn_test.go](https://github.com/lib/pq/blob/master/conn_test.go).
### New functionality
There are a number of pending patches for new functionality, so
additional feature patches will take a while to merge. Still, patches
are generally reviewed based on usefulness and complexity in addition
to time-in-queue, so if you have a knockout idea, take a shot. Feel
free to open an issue discussion your proposed patch beforehand.

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vendor/src/github.com/lib/pq/LICENSE.md vendored Normal file
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Copyright (c) 2011-2013, 'pq' Contributors
Portions Copyright (C) 2011 Blake Mizerany
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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vendor/src/github.com/lib/pq/README.md vendored Normal file
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# pq - A pure Go postgres driver for Go's database/sql package
[![Build Status](https://travis-ci.org/lib/pq.png?branch=master)](https://travis-ci.org/lib/pq)
## Install
go get github.com/lib/pq
## Docs
For detailed documentation and basic usage examples, please see the package
documentation at <http://godoc.org/github.com/lib/pq>.
## Tests
`go test` is used for testing. A running PostgreSQL server is
required, with the ability to log in. The default database to connect
to test with is "pqgotest," but it can be overridden using environment
variables.
Example:
PGHOST=/var/run/postgresql go test github.com/lib/pq
Optionally, a benchmark suite can be run as part of the tests:
PGHOST=/var/run/postgresql go test -bench .
## Features
* SSL
* Handles bad connections for `database/sql`
* Scan `time.Time` correctly (i.e. `timestamp[tz]`, `time[tz]`, `date`)
* Scan binary blobs correctly (i.e. `bytea`)
* Package for `hstore` support
* COPY FROM support
* pq.ParseURL for converting urls to connection strings for sql.Open.
* Many libpq compatible environment variables
* Unix socket support
* Notifications: `LISTEN`/`NOTIFY`
## Future / Things you can help with
* Better COPY FROM / COPY TO (see discussion in #181)
## Thank you (alphabetical)
Some of these contributors are from the original library `bmizerany/pq.go` whose
code still exists in here.
* Andy Balholm (andybalholm)
* Ben Berkert (benburkert)
* Benjamin Heatwole (bheatwole)
* Bill Mill (llimllib)
* Bjørn Madsen (aeons)
* Blake Gentry (bgentry)
* Brad Fitzpatrick (bradfitz)
* Charlie Melbye (cmelbye)
* Chris Bandy (cbandy)
* Chris Gilling (cgilling)
* Chris Walsh (cwds)
* Dan Sosedoff (sosedoff)
* Daniel Farina (fdr)
* Eric Chlebek (echlebek)
* Eric Garrido (minusnine)
* Eric Urban (hydrogen18)
* Everyone at The Go Team
* Evan Shaw (edsrzf)
* Ewan Chou (coocood)
* Federico Romero (federomero)
* Fumin (fumin)
* Gary Burd (garyburd)
* Heroku (heroku)
* James Pozdena (jpoz)
* Jason McVetta (jmcvetta)
* Jeremy Jay (pbnjay)
* Joakim Sernbrant (serbaut)
* John Gallagher (jgallagher)
* Jonathan Rudenberg (titanous)
* Joël Stemmer (jstemmer)
* Kamil Kisiel (kisielk)
* Kelly Dunn (kellydunn)
* Keith Rarick (kr)
* Kir Shatrov (kirs)
* Lann Martin (lann)
* Maciek Sakrejda (deafbybeheading)
* Marc Brinkmann (mbr)
* Marko Tiikkaja (johto)
* Matt Newberry (MattNewberry)
* Matt Robenolt (mattrobenolt)
* Martin Olsen (martinolsen)
* Mike Lewis (mikelikespie)
* Nicolas Patry (Narsil)
* Oliver Tonnhofer (olt)
* Patrick Hayes (phayes)
* Paul Hammond (paulhammond)
* Ryan Smith (ryandotsmith)
* Samuel Stauffer (samuel)
* Timothée Peignier (cyberdelia)
* Travis Cline (tmc)
* TruongSinh Tran-Nguyen (truongsinh)
* Yaismel Miranda (ympons)
* notedit (notedit)

435
vendor/src/github.com/lib/pq/bench_test.go vendored Normal file
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// +build go1.1
package pq
import (
"bufio"
"bytes"
"database/sql"
"database/sql/driver"
"io"
"math/rand"
"net"
"runtime"
"strconv"
"strings"
"sync"
"testing"
"time"
"github.com/lib/pq/oid"
)
var (
selectStringQuery = "SELECT '" + strings.Repeat("0123456789", 10) + "'"
selectSeriesQuery = "SELECT generate_series(1, 100)"
)
func BenchmarkSelectString(b *testing.B) {
var result string
benchQuery(b, selectStringQuery, &result)
}
func BenchmarkSelectSeries(b *testing.B) {
var result int
benchQuery(b, selectSeriesQuery, &result)
}
func benchQuery(b *testing.B, query string, result interface{}) {
b.StopTimer()
db := openTestConn(b)
defer db.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
benchQueryLoop(b, db, query, result)
}
}
func benchQueryLoop(b *testing.B, db *sql.DB, query string, result interface{}) {
rows, err := db.Query(query)
if err != nil {
b.Fatal(err)
}
defer rows.Close()
for rows.Next() {
err = rows.Scan(result)
if err != nil {
b.Fatal("failed to scan", err)
}
}
}
// reading from circularConn yields content[:prefixLen] once, followed by
// content[prefixLen:] over and over again. It never returns EOF.
type circularConn struct {
content string
prefixLen int
pos int
net.Conn // for all other net.Conn methods that will never be called
}
func (r *circularConn) Read(b []byte) (n int, err error) {
n = copy(b, r.content[r.pos:])
r.pos += n
if r.pos >= len(r.content) {
r.pos = r.prefixLen
}
return
}
func (r *circularConn) Write(b []byte) (n int, err error) { return len(b), nil }
func (r *circularConn) Close() error { return nil }
func fakeConn(content string, prefixLen int) *conn {
c := &circularConn{content: content, prefixLen: prefixLen}
return &conn{buf: bufio.NewReader(c), c: c}
}
// This benchmark is meant to be the same as BenchmarkSelectString, but takes
// out some of the factors this package can't control. The numbers are less noisy,
// but also the costs of network communication aren't accurately represented.
func BenchmarkMockSelectString(b *testing.B) {
b.StopTimer()
// taken from a recorded run of BenchmarkSelectString
// See: http://www.postgresql.org/docs/current/static/protocol-message-formats.html
const response = "1\x00\x00\x00\x04" +
"t\x00\x00\x00\x06\x00\x00" +
"T\x00\x00\x00!\x00\x01?column?\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\xc1\xff\xfe\xff\xff\xff\xff\x00\x00" +
"Z\x00\x00\x00\x05I" +
"2\x00\x00\x00\x04" +
"D\x00\x00\x00n\x00\x01\x00\x00\x00d0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789" +
"C\x00\x00\x00\rSELECT 1\x00" +
"Z\x00\x00\x00\x05I" +
"3\x00\x00\x00\x04" +
"Z\x00\x00\x00\x05I"
c := fakeConn(response, 0)
b.StartTimer()
for i := 0; i < b.N; i++ {
benchMockQuery(b, c, selectStringQuery)
}
}
var seriesRowData = func() string {
var buf bytes.Buffer
for i := 1; i <= 100; i++ {
digits := byte(2)
if i >= 100 {
digits = 3
} else if i < 10 {
digits = 1
}
buf.WriteString("D\x00\x00\x00")
buf.WriteByte(10 + digits)
buf.WriteString("\x00\x01\x00\x00\x00")
buf.WriteByte(digits)
buf.WriteString(strconv.Itoa(i))
}
return buf.String()
}()
func BenchmarkMockSelectSeries(b *testing.B) {
b.StopTimer()
var response = "1\x00\x00\x00\x04" +
"t\x00\x00\x00\x06\x00\x00" +
"T\x00\x00\x00!\x00\x01?column?\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\xc1\xff\xfe\xff\xff\xff\xff\x00\x00" +
"Z\x00\x00\x00\x05I" +
"2\x00\x00\x00\x04" +
seriesRowData +
"C\x00\x00\x00\x0fSELECT 100\x00" +
"Z\x00\x00\x00\x05I" +
"3\x00\x00\x00\x04" +
"Z\x00\x00\x00\x05I"
c := fakeConn(response, 0)
b.StartTimer()
for i := 0; i < b.N; i++ {
benchMockQuery(b, c, selectSeriesQuery)
}
}
func benchMockQuery(b *testing.B, c *conn, query string) {
stmt, err := c.Prepare(query)
if err != nil {
b.Fatal(err)
}
defer stmt.Close()
rows, err := stmt.Query(nil)
if err != nil {
b.Fatal(err)
}
defer rows.Close()
var dest [1]driver.Value
for {
if err := rows.Next(dest[:]); err != nil {
if err == io.EOF {
break
}
b.Fatal(err)
}
}
}
func BenchmarkPreparedSelectString(b *testing.B) {
var result string
benchPreparedQuery(b, selectStringQuery, &result)
}
func BenchmarkPreparedSelectSeries(b *testing.B) {
var result int
benchPreparedQuery(b, selectSeriesQuery, &result)
}
func benchPreparedQuery(b *testing.B, query string, result interface{}) {
b.StopTimer()
db := openTestConn(b)
defer db.Close()
stmt, err := db.Prepare(query)
if err != nil {
b.Fatal(err)
}
defer stmt.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
benchPreparedQueryLoop(b, db, stmt, result)
}
}
func benchPreparedQueryLoop(b *testing.B, db *sql.DB, stmt *sql.Stmt, result interface{}) {
rows, err := stmt.Query()
if err != nil {
b.Fatal(err)
}
if !rows.Next() {
rows.Close()
b.Fatal("no rows")
}
defer rows.Close()
for rows.Next() {
err = rows.Scan(&result)
if err != nil {
b.Fatal("failed to scan")
}
}
}
// See the comment for BenchmarkMockSelectString.
func BenchmarkMockPreparedSelectString(b *testing.B) {
b.StopTimer()
const parseResponse = "1\x00\x00\x00\x04" +
"t\x00\x00\x00\x06\x00\x00" +
"T\x00\x00\x00!\x00\x01?column?\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\xc1\xff\xfe\xff\xff\xff\xff\x00\x00" +
"Z\x00\x00\x00\x05I"
const responses = parseResponse +
"2\x00\x00\x00\x04" +
"D\x00\x00\x00n\x00\x01\x00\x00\x00d0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789" +
"C\x00\x00\x00\rSELECT 1\x00" +
"Z\x00\x00\x00\x05I"
c := fakeConn(responses, len(parseResponse))
stmt, err := c.Prepare(selectStringQuery)
if err != nil {
b.Fatal(err)
}
b.StartTimer()
for i := 0; i < b.N; i++ {
benchPreparedMockQuery(b, c, stmt)
}
}
func BenchmarkMockPreparedSelectSeries(b *testing.B) {
b.StopTimer()
const parseResponse = "1\x00\x00\x00\x04" +
"t\x00\x00\x00\x06\x00\x00" +
"T\x00\x00\x00!\x00\x01?column?\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\xc1\xff\xfe\xff\xff\xff\xff\x00\x00" +
"Z\x00\x00\x00\x05I"
var responses = parseResponse +
"2\x00\x00\x00\x04" +
seriesRowData +
"C\x00\x00\x00\x0fSELECT 100\x00" +
"Z\x00\x00\x00\x05I"
c := fakeConn(responses, len(parseResponse))
stmt, err := c.Prepare(selectSeriesQuery)
if err != nil {
b.Fatal(err)
}
b.StartTimer()
for i := 0; i < b.N; i++ {
benchPreparedMockQuery(b, c, stmt)
}
}
func benchPreparedMockQuery(b *testing.B, c *conn, stmt driver.Stmt) {
rows, err := stmt.Query(nil)
if err != nil {
b.Fatal(err)
}
defer rows.Close()
var dest [1]driver.Value
for {
if err := rows.Next(dest[:]); err != nil {
if err == io.EOF {
break
}
b.Fatal(err)
}
}
}
func BenchmarkEncodeInt64(b *testing.B) {
for i := 0; i < b.N; i++ {
encode(&parameterStatus{}, int64(1234), oid.T_int8)
}
}
func BenchmarkEncodeFloat64(b *testing.B) {
for i := 0; i < b.N; i++ {
encode(&parameterStatus{}, 3.14159, oid.T_float8)
}
}
var testByteString = []byte("abcdefghijklmnopqrstuvwxyz")
func BenchmarkEncodeByteaHex(b *testing.B) {
for i := 0; i < b.N; i++ {
encode(&parameterStatus{serverVersion: 90000}, testByteString, oid.T_bytea)
}
}
func BenchmarkEncodeByteaEscape(b *testing.B) {
for i := 0; i < b.N; i++ {
encode(&parameterStatus{serverVersion: 84000}, testByteString, oid.T_bytea)
}
}
func BenchmarkEncodeBool(b *testing.B) {
for i := 0; i < b.N; i++ {
encode(&parameterStatus{}, true, oid.T_bool)
}
}
var testTimestamptz = time.Date(2001, time.January, 1, 0, 0, 0, 0, time.Local)
func BenchmarkEncodeTimestamptz(b *testing.B) {
for i := 0; i < b.N; i++ {
encode(&parameterStatus{}, testTimestamptz, oid.T_timestamptz)
}
}
var testIntBytes = []byte("1234")
func BenchmarkDecodeInt64(b *testing.B) {
for i := 0; i < b.N; i++ {
decode(&parameterStatus{}, testIntBytes, oid.T_int8, formatText)
}
}
var testFloatBytes = []byte("3.14159")
func BenchmarkDecodeFloat64(b *testing.B) {
for i := 0; i < b.N; i++ {
decode(&parameterStatus{}, testFloatBytes, oid.T_float8, formatText)
}
}
var testBoolBytes = []byte{'t'}
func BenchmarkDecodeBool(b *testing.B) {
for i := 0; i < b.N; i++ {
decode(&parameterStatus{}, testBoolBytes, oid.T_bool, formatText)
}
}
func TestDecodeBool(t *testing.T) {
db := openTestConn(t)
rows, err := db.Query("select true")
if err != nil {
t.Fatal(err)
}
rows.Close()
}
var testTimestamptzBytes = []byte("2013-09-17 22:15:32.360754-07")
func BenchmarkDecodeTimestamptz(b *testing.B) {
for i := 0; i < b.N; i++ {
decode(&parameterStatus{}, testTimestamptzBytes, oid.T_timestamptz, formatText)
}
}
func BenchmarkDecodeTimestamptzMultiThread(b *testing.B) {
oldProcs := runtime.GOMAXPROCS(0)
defer runtime.GOMAXPROCS(oldProcs)
runtime.GOMAXPROCS(runtime.NumCPU())
globalLocationCache = newLocationCache()
f := func(wg *sync.WaitGroup, loops int) {
defer wg.Done()
for i := 0; i < loops; i++ {
decode(&parameterStatus{}, testTimestamptzBytes, oid.T_timestamptz, formatText)
}
}
wg := &sync.WaitGroup{}
b.ResetTimer()
for j := 0; j < 10; j++ {
wg.Add(1)
go f(wg, b.N/10)
}
wg.Wait()
}
func BenchmarkLocationCache(b *testing.B) {
globalLocationCache = newLocationCache()
for i := 0; i < b.N; i++ {
globalLocationCache.getLocation(rand.Intn(10000))
}
}
func BenchmarkLocationCacheMultiThread(b *testing.B) {
oldProcs := runtime.GOMAXPROCS(0)
defer runtime.GOMAXPROCS(oldProcs)
runtime.GOMAXPROCS(runtime.NumCPU())
globalLocationCache = newLocationCache()
f := func(wg *sync.WaitGroup, loops int) {
defer wg.Done()
for i := 0; i < loops; i++ {
globalLocationCache.getLocation(rand.Intn(10000))
}
}
wg := &sync.WaitGroup{}
b.ResetTimer()
for j := 0; j < 10; j++ {
wg.Add(1)
go f(wg, b.N/10)
}
wg.Wait()
}
// Stress test the performance of parsing results from the wire.
func BenchmarkResultParsing(b *testing.B) {
b.StopTimer()
db := openTestConn(b)
defer db.Close()
_, err := db.Exec("BEGIN")
if err != nil {
b.Fatal(err)
}
b.StartTimer()
for i := 0; i < b.N; i++ {
res, err := db.Query("SELECT generate_series(1, 50000)")
if err != nil {
b.Fatal(err)
}
res.Close()
}
}

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package pq
import (
"bytes"
"encoding/binary"
"github.com/lib/pq/oid"
)
type readBuf []byte
func (b *readBuf) int32() (n int) {
n = int(int32(binary.BigEndian.Uint32(*b)))
*b = (*b)[4:]
return
}
func (b *readBuf) oid() (n oid.Oid) {
n = oid.Oid(binary.BigEndian.Uint32(*b))
*b = (*b)[4:]
return
}
// N.B: this is actually an unsigned 16-bit integer, unlike int32
func (b *readBuf) int16() (n int) {
n = int(binary.BigEndian.Uint16(*b))
*b = (*b)[2:]
return
}
func (b *readBuf) string() string {
i := bytes.IndexByte(*b, 0)
if i < 0 {
errorf("invalid message format; expected string terminator")
}
s := (*b)[:i]
*b = (*b)[i+1:]
return string(s)
}
func (b *readBuf) next(n int) (v []byte) {
v = (*b)[:n]
*b = (*b)[n:]
return
}
func (b *readBuf) byte() byte {
return b.next(1)[0]
}
type writeBuf struct {
buf []byte
pos int
}
func (b *writeBuf) int32(n int) {
x := make([]byte, 4)
binary.BigEndian.PutUint32(x, uint32(n))
b.buf = append(b.buf, x...)
}
func (b *writeBuf) int16(n int) {
x := make([]byte, 2)
binary.BigEndian.PutUint16(x, uint16(n))
b.buf = append(b.buf, x...)
}
func (b *writeBuf) string(s string) {
b.buf = append(b.buf, (s + "\000")...)
}
func (b *writeBuf) byte(c byte) {
b.buf = append(b.buf, c)
}
func (b *writeBuf) bytes(v []byte) {
b.buf = append(b.buf, v...)
}
func (b *writeBuf) wrap() []byte {
p := b.buf[b.pos:]
binary.BigEndian.PutUint32(p, uint32(len(p)))
return b.buf
}
func (b *writeBuf) next(c byte) {
p := b.buf[b.pos:]
binary.BigEndian.PutUint32(p, uint32(len(p)))
b.pos = len(b.buf) + 1
b.buf = append(b.buf, c, 0, 0, 0, 0)
}

3
vendor/src/github.com/lib/pq/certs/README vendored Normal file
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This directory contains certificates and private keys for testing some
SSL-related functionality in Travis. Do NOT use these certificates for
anything other than testing.

69
vendor/src/github.com/lib/pq/certs/postgresql.crt vendored Normal file
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Certificate:
Data:
Version: 3 (0x2)
Serial Number: 2 (0x2)
Signature Algorithm: sha256WithRSAEncryption
Issuer: C=US, ST=Nevada, L=Las Vegas, O=github.com/lib/pq, CN=pq CA
Validity
Not Before: Oct 11 15:10:11 2014 GMT
Not After : Oct 8 15:10:11 2024 GMT
Subject: C=US, ST=Nevada, L=Las Vegas, O=github.com/lib/pq, CN=pqgosslcert
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
RSA Public Key: (1024 bit)
Modulus (1024 bit):
00:e3:8c:06:9a:70:54:51:d1:34:34:83:39:cd:a2:
59:0f:05:ed:8d:d8:0e:34:d0:92:f4:09:4d:ee:8c:
78:55:49:24:f8:3c:e0:34:58:02:b2:e7:94:58:c1:
e8:e5:bb:d1:af:f6:54:c1:40:b1:90:70:79:0d:35:
54:9c:8f:16:e9:c2:f0:92:e6:64:49:38:c1:76:f8:
47:66:c4:5b:4a:b6:a9:43:ce:c8:be:6c:4d:2b:94:
97:3c:55:bc:d1:d0:6e:b7:53:ae:89:5c:4b:6b:86:
40:be:c1:ae:1e:64:ce:9c:ae:87:0a:69:e5:c8:21:
12:be:ae:1d:f6:45:df:16:a7
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Subject Key Identifier:
9B:25:31:63:A2:D8:06:FF:CB:E3:E9:96:FF:0D:BA:DC:12:7D:04:CF
X509v3 Authority Key Identifier:
keyid:52:93:ED:1E:76:0A:9F:65:4F:DE:19:66:C1:D5:22:40:35:CB:A0:72
X509v3 Basic Constraints:
CA:FALSE
X509v3 Key Usage:
Digital Signature, Non Repudiation, Key Encipherment
Signature Algorithm: sha256WithRSAEncryption
3e:f5:f8:0b:4e:11:bd:00:86:1f:ce:dc:97:02:98:91:11:f5:
65:f6:f2:8a:b2:3e:47:92:05:69:28:c9:e9:b4:f7:cf:93:d1:
2d:81:5d:00:3c:23:be:da:70:ea:59:e1:2c:d3:25:49:ae:a6:
95:54:c1:10:df:23:e3:fe:d6:e4:76:c7:6b:73:ad:1b:34:7c:
e2:56:cc:c0:37:ae:c5:7a:11:20:6c:3d:05:0e:99:cd:22:6c:
cf:59:a1:da:28:d4:65:ba:7d:2f:2b:3d:69:6d:a6:c1:ae:57:
bf:56:64:13:79:f8:48:46:65:eb:81:67:28:0b:7b:de:47:10:
b3:80:3c:31:d1:58:94:01:51:4a:c7:c8:1a:01:a8:af:c4:cd:
bb:84:a5:d9:8b:b4:b9:a1:64:3e:95:d9:90:1d:d5:3f:67:cc:
3b:ba:f5:b4:d1:33:77:ee:c2:d2:3e:7e:c5:66:6e:b7:35:4c:
60:57:b0:b8:be:36:c8:f3:d3:95:8c:28:4a:c9:f7:27:a4:0d:
e5:96:99:eb:f5:c8:bd:f3:84:6d:ef:02:f9:8a:36:7d:6b:5f:
36:68:37:41:d9:74:ae:c6:78:2e:44:86:a1:ad:43:ca:fb:b5:
3e:ba:10:23:09:02:ac:62:d1:d0:83:c8:95:b9:e3:5e:30:ff:
5b:2b:38:fa
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

15
vendor/src/github.com/lib/pq/certs/postgresql.key vendored Normal file
View File

@ -0,0 +1,15 @@
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

24
vendor/src/github.com/lib/pq/certs/root.crt vendored Normal file
View File

@ -0,0 +1,24 @@
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

81
vendor/src/github.com/lib/pq/certs/server.crt vendored Normal file
View File

@ -0,0 +1,81 @@
Certificate:
Data:
Version: 3 (0x2)
Serial Number: 1 (0x1)
Signature Algorithm: sha256WithRSAEncryption
Issuer: C=US, ST=Nevada, L=Las Vegas, O=github.com/lib/pq, CN=pq CA
Validity
Not Before: Oct 11 15:05:15 2014 GMT
Not After : Oct 8 15:05:15 2024 GMT
Subject: C=US, ST=Nevada, L=Las Vegas, O=github.com/lib/pq, CN=postgres
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
RSA Public Key: (2048 bit)
Modulus (2048 bit):
00:d7:8a:4c:85:fb:17:a5:3c:8f:e0:72:11:29:ce:
3f:b0:1f:3f:7d:c6:ee:7f:a7:fc:02:2b:35:47:08:
a6:3d:90:df:5c:56:14:94:00:c7:6d:d1:d2:e2:61:
95:77:b8:e3:a6:66:31:f9:1f:21:7d:62:e1:27:da:
94:37:61:4a:ea:63:53:a0:61:b8:9c:bb:a5:e2:e7:
b7:a6:d8:0f:05:04:c7:29:e2:ea:49:2b:7f:de:15:
00:a6:18:70:50:c7:0c:de:9a:f9:5a:96:b0:e1:94:
06:c6:6d:4a:21:3b:b4:0f:a5:6d:92:86:34:b2:4e:
d7:0e:a7:19:c0:77:0b:7b:87:c8:92:de:42:ff:86:
d2:b7:9a:a4:d4:15:23:ca:ad:a5:69:21:b8:ce:7e:
66:cb:85:5d:b9:ed:8b:2d:09:8d:94:e4:04:1e:72:
ec:ef:d0:76:90:15:5a:a4:f7:91:4b:e9:ce:4e:9d:
5d:9a:70:17:9c:d8:e9:73:83:ea:3d:61:99:a6:cd:
ac:91:40:5a:88:77:e5:4e:2a:8e:3d:13:f3:f9:38:
6f:81:6b:8a:95:ca:0e:07:ab:6f:da:b4:8c:d9:ff:
aa:78:03:aa:c7:c2:cf:6f:64:92:d3:d8:83:d5:af:
f1:23:18:a7:2e:7b:17:0b:e7:7d:f1:fa:a8:41:a3:
04:57
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Subject Key Identifier:
EE:F0:B3:46:DC:C7:09:EB:0E:B6:2F:E5:FE:62:60:45:44:9F:59:CC
X509v3 Authority Key Identifier:
keyid:52:93:ED:1E:76:0A:9F:65:4F:DE:19:66:C1:D5:22:40:35:CB:A0:72
X509v3 Basic Constraints:
CA:FALSE
X509v3 Key Usage:
Digital Signature, Non Repudiation, Key Encipherment
Signature Algorithm: sha256WithRSAEncryption
7e:5a:6e:be:bf:d2:6c:c1:d6:fa:b6:fb:3f:06:53:36:08:87:
9d:95:b1:39:af:9e:f6:47:38:17:39:da:25:7c:f2:ad:0c:e3:
ab:74:19:ca:fb:8c:a0:50:c0:1d:19:8a:9c:21:ed:0f:3a:d1:
96:54:2e:10:09:4f:b8:70:f7:2b:99:43:d2:c6:15:bc:3f:24:
7d:28:39:32:3f:8d:a4:4f:40:75:7f:3e:0d:1c:d1:69:f2:4e:
98:83:47:97:d2:25:ac:c9:36:86:2f:04:a6:c4:86:c7:c4:00:
5f:7f:b9:ad:fc:bf:e9:f5:78:d7:82:1a:51:0d:fc:ab:9e:92:
1d:5f:0c:18:d1:82:e0:14:c9:ce:91:89:71:ff:49:49:ff:35:
bf:7b:44:78:42:c1:d0:66:65:bb:28:2e:60:ca:9b:20:12:a9:
90:61:b1:96:ec:15:46:c9:37:f7:07:90:8a:89:45:2a:3f:37:
ec:dc:e3:e5:8f:c3:3a:57:80:a5:54:60:0c:e1:b2:26:99:2b:
40:7e:36:d1:9a:70:02:ec:63:f4:3b:72:ae:81:fb:30:20:6d:
cb:48:46:c6:b5:8f:39:b1:84:05:25:55:8d:f5:62:f6:1b:46:
2e:da:a3:4c:26:12:44:d7:56:b6:b8:a9:ca:d3:ab:71:45:7c:
9f:48:6d:1e
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

27
vendor/src/github.com/lib/pq/certs/server.key vendored Normal file
View File

@ -0,0 +1,27 @@
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

1775
vendor/src/github.com/lib/pq/conn.go vendored Normal file
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1306
vendor/src/github.com/lib/pq/conn_test.go vendored Normal file
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268
vendor/src/github.com/lib/pq/copy.go vendored Normal file
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@ -0,0 +1,268 @@
package pq
import (
"database/sql/driver"
"encoding/binary"
"errors"
"fmt"
"sync"
)
var (
errCopyInClosed = errors.New("pq: copyin statement has already been closed")
errBinaryCopyNotSupported = errors.New("pq: only text format supported for COPY")
errCopyToNotSupported = errors.New("pq: COPY TO is not supported")
errCopyNotSupportedOutsideTxn = errors.New("pq: COPY is only allowed inside a transaction")
)
// CopyIn creates a COPY FROM statement which can be prepared with
// Tx.Prepare(). The target table should be visible in search_path.
func CopyIn(table string, columns ...string) string {
stmt := "COPY " + QuoteIdentifier(table) + " ("
for i, col := range columns {
if i != 0 {
stmt += ", "
}
stmt += QuoteIdentifier(col)
}
stmt += ") FROM STDIN"
return stmt
}
// CopyInSchema creates a COPY FROM statement which can be prepared with
// Tx.Prepare().
func CopyInSchema(schema, table string, columns ...string) string {
stmt := "COPY " + QuoteIdentifier(schema) + "." + QuoteIdentifier(table) + " ("
for i, col := range columns {
if i != 0 {
stmt += ", "
}
stmt += QuoteIdentifier(col)
}
stmt += ") FROM STDIN"
return stmt
}
type copyin struct {
cn *conn
buffer []byte
rowData chan []byte
done chan bool
closed bool
sync.Mutex // guards err
err error
}
const ciBufferSize = 64 * 1024
// flush buffer before the buffer is filled up and needs reallocation
const ciBufferFlushSize = 63 * 1024
func (cn *conn) prepareCopyIn(q string) (_ driver.Stmt, err error) {
if !cn.isInTransaction() {
return nil, errCopyNotSupportedOutsideTxn
}
ci := &copyin{
cn: cn,
buffer: make([]byte, 0, ciBufferSize),
rowData: make(chan []byte),
done: make(chan bool, 1),
}
// add CopyData identifier + 4 bytes for message length
ci.buffer = append(ci.buffer, 'd', 0, 0, 0, 0)
b := cn.writeBuf('Q')
b.string(q)
cn.send(b)
awaitCopyInResponse:
for {
t, r := cn.recv1()
switch t {
case 'G':
if r.byte() != 0 {
err = errBinaryCopyNotSupported
break awaitCopyInResponse
}
go ci.resploop()
return ci, nil
case 'H':
err = errCopyToNotSupported
break awaitCopyInResponse
case 'E':
err = parseError(r)
case 'Z':
if err == nil {
cn.bad = true
errorf("unexpected ReadyForQuery in response to COPY")
}
cn.processReadyForQuery(r)
return nil, err
default:
cn.bad = true
errorf("unknown response for copy query: %q", t)
}
}
// something went wrong, abort COPY before we return
b = cn.writeBuf('f')
b.string(err.Error())
cn.send(b)
for {
t, r := cn.recv1()
switch t {
case 'c', 'C', 'E':
case 'Z':
// correctly aborted, we're done
cn.processReadyForQuery(r)
return nil, err
default:
cn.bad = true
errorf("unknown response for CopyFail: %q", t)
}
}
}
func (ci *copyin) flush(buf []byte) {
// set message length (without message identifier)
binary.BigEndian.PutUint32(buf[1:], uint32(len(buf)-1))
_, err := ci.cn.c.Write(buf)
if err != nil {
panic(err)
}
}
func (ci *copyin) resploop() {
for {
var r readBuf
t, err := ci.cn.recvMessage(&r)
if err != nil {
ci.cn.bad = true
ci.setError(err)
ci.done <- true
return
}
switch t {
case 'C':
// complete
case 'N':
// NoticeResponse
case 'Z':
ci.cn.processReadyForQuery(&r)
ci.done <- true
return
case 'E':
err := parseError(&r)
ci.setError(err)
default:
ci.cn.bad = true
ci.setError(fmt.Errorf("unknown response during CopyIn: %q", t))
ci.done <- true
return
}
}
}
func (ci *copyin) isErrorSet() bool {
ci.Lock()
isSet := (ci.err != nil)
ci.Unlock()
return isSet
}
// setError() sets ci.err if one has not been set already. Caller must not be
// holding ci.Mutex.
func (ci *copyin) setError(err error) {
ci.Lock()
if ci.err == nil {
ci.err = err
}
ci.Unlock()
}
func (ci *copyin) NumInput() int {
return -1
}
func (ci *copyin) Query(v []driver.Value) (r driver.Rows, err error) {
return nil, ErrNotSupported
}
// Exec inserts values into the COPY stream. The insert is asynchronous
// and Exec can return errors from previous Exec calls to the same
// COPY stmt.
//
// You need to call Exec(nil) to sync the COPY stream and to get any
// errors from pending data, since Stmt.Close() doesn't return errors
// to the user.
func (ci *copyin) Exec(v []driver.Value) (r driver.Result, err error) {
if ci.closed {
return nil, errCopyInClosed
}
if ci.cn.bad {
return nil, driver.ErrBadConn
}
defer ci.cn.errRecover(&err)
if ci.isErrorSet() {
return nil, ci.err
}
if len(v) == 0 {
err = ci.Close()
ci.closed = true
return nil, err
}
numValues := len(v)
for i, value := range v {
ci.buffer = appendEncodedText(&ci.cn.parameterStatus, ci.buffer, value)
if i < numValues-1 {
ci.buffer = append(ci.buffer, '\t')
}
}
ci.buffer = append(ci.buffer, '\n')
if len(ci.buffer) > ciBufferFlushSize {
ci.flush(ci.buffer)
// reset buffer, keep bytes for message identifier and length
ci.buffer = ci.buffer[:5]
}
return driver.RowsAffected(0), nil
}
func (ci *copyin) Close() (err error) {
if ci.closed {
return errCopyInClosed
}
if ci.cn.bad {
return driver.ErrBadConn
}
defer ci.cn.errRecover(&err)
if len(ci.buffer) > 0 {
ci.flush(ci.buffer)
}
// Avoid touching the scratch buffer as resploop could be using it.
err = ci.cn.sendSimpleMessage('c')
if err != nil {
return err
}
<-ci.done
if ci.isErrorSet() {
err = ci.err
return err
}
return nil
}

462
vendor/src/github.com/lib/pq/copy_test.go vendored Normal file
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package pq
import (
"bytes"
"database/sql"
"strings"
"testing"
)
func TestCopyInStmt(t *testing.T) {
var stmt string
stmt = CopyIn("table name")
if stmt != `COPY "table name" () FROM STDIN` {
t.Fatal(stmt)
}
stmt = CopyIn("table name", "column 1", "column 2")
if stmt != `COPY "table name" ("column 1", "column 2") FROM STDIN` {
t.Fatal(stmt)
}
stmt = CopyIn(`table " name """`, `co"lumn""`)
if stmt != `COPY "table "" name """"""" ("co""lumn""""") FROM STDIN` {
t.Fatal(stmt)
}
}
func TestCopyInSchemaStmt(t *testing.T) {
var stmt string
stmt = CopyInSchema("schema name", "table name")
if stmt != `COPY "schema name"."table name" () FROM STDIN` {
t.Fatal(stmt)
}
stmt = CopyInSchema("schema name", "table name", "column 1", "column 2")
if stmt != `COPY "schema name"."table name" ("column 1", "column 2") FROM STDIN` {
t.Fatal(stmt)
}
stmt = CopyInSchema(`schema " name """`, `table " name """`, `co"lumn""`)
if stmt != `COPY "schema "" name """"""".`+
`"table "" name """"""" ("co""lumn""""") FROM STDIN` {
t.Fatal(stmt)
}
}
func TestCopyInMultipleValues(t *testing.T) {
db := openTestConn(t)
defer db.Close()
txn, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer txn.Rollback()
_, err = txn.Exec("CREATE TEMP TABLE temp (a int, b varchar)")
if err != nil {
t.Fatal(err)
}
stmt, err := txn.Prepare(CopyIn("temp", "a", "b"))
if err != nil {
t.Fatal(err)
}
longString := strings.Repeat("#", 500)
for i := 0; i < 500; i++ {
_, err = stmt.Exec(int64(i), longString)
if err != nil {
t.Fatal(err)
}
}
_, err = stmt.Exec()
if err != nil {
t.Fatal(err)
}
err = stmt.Close()
if err != nil {
t.Fatal(err)
}
var num int
err = txn.QueryRow("SELECT COUNT(*) FROM temp").Scan(&num)
if err != nil {
t.Fatal(err)
}
if num != 500 {
t.Fatalf("expected 500 items, not %d", num)
}
}
func TestCopyInRaiseStmtTrigger(t *testing.T) {
db := openTestConn(t)
defer db.Close()
if getServerVersion(t, db) < 90000 {
var exists int
err := db.QueryRow("SELECT 1 FROM pg_language WHERE lanname = 'plpgsql'").Scan(&exists)
if err == sql.ErrNoRows {
t.Skip("language PL/PgSQL does not exist; skipping TestCopyInRaiseStmtTrigger")
} else if err != nil {
t.Fatal(err)
}
}
txn, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer txn.Rollback()
_, err = txn.Exec("CREATE TEMP TABLE temp (a int, b varchar)")
if err != nil {
t.Fatal(err)
}
_, err = txn.Exec(`
CREATE OR REPLACE FUNCTION pg_temp.temptest()
RETURNS trigger AS
$BODY$ begin
raise notice 'Hello world';
return new;
end $BODY$
LANGUAGE plpgsql`)
if err != nil {
t.Fatal(err)
}
_, err = txn.Exec(`
CREATE TRIGGER temptest_trigger
BEFORE INSERT
ON temp
FOR EACH ROW
EXECUTE PROCEDURE pg_temp.temptest()`)
if err != nil {
t.Fatal(err)
}
stmt, err := txn.Prepare(CopyIn("temp", "a", "b"))
if err != nil {
t.Fatal(err)
}
longString := strings.Repeat("#", 500)
_, err = stmt.Exec(int64(1), longString)
if err != nil {
t.Fatal(err)
}
_, err = stmt.Exec()
if err != nil {
t.Fatal(err)
}
err = stmt.Close()
if err != nil {
t.Fatal(err)
}
var num int
err = txn.QueryRow("SELECT COUNT(*) FROM temp").Scan(&num)
if err != nil {
t.Fatal(err)
}
if num != 1 {
t.Fatalf("expected 1 items, not %d", num)
}
}
func TestCopyInTypes(t *testing.T) {
db := openTestConn(t)
defer db.Close()
txn, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer txn.Rollback()
_, err = txn.Exec("CREATE TEMP TABLE temp (num INTEGER, text VARCHAR, blob BYTEA, nothing VARCHAR)")
if err != nil {
t.Fatal(err)
}
stmt, err := txn.Prepare(CopyIn("temp", "num", "text", "blob", "nothing"))
if err != nil {
t.Fatal(err)
}
_, err = stmt.Exec(int64(1234567890), "Héllö\n ☃!\r\t\\", []byte{0, 255, 9, 10, 13}, nil)
if err != nil {
t.Fatal(err)
}
_, err = stmt.Exec()
if err != nil {
t.Fatal(err)
}
err = stmt.Close()
if err != nil {
t.Fatal(err)
}
var num int
var text string
var blob []byte
var nothing sql.NullString
err = txn.QueryRow("SELECT * FROM temp").Scan(&num, &text, &blob, &nothing)
if err != nil {
t.Fatal(err)
}
if num != 1234567890 {
t.Fatal("unexpected result", num)
}
if text != "Héllö\n ☃!\r\t\\" {
t.Fatal("unexpected result", text)
}
if bytes.Compare(blob, []byte{0, 255, 9, 10, 13}) != 0 {
t.Fatal("unexpected result", blob)
}
if nothing.Valid {
t.Fatal("unexpected result", nothing.String)
}
}
func TestCopyInWrongType(t *testing.T) {
db := openTestConn(t)
defer db.Close()
txn, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer txn.Rollback()
_, err = txn.Exec("CREATE TEMP TABLE temp (num INTEGER)")
if err != nil {
t.Fatal(err)
}
stmt, err := txn.Prepare(CopyIn("temp", "num"))
if err != nil {
t.Fatal(err)
}
defer stmt.Close()
_, err = stmt.Exec("Héllö\n ☃!\r\t\\")
if err != nil {
t.Fatal(err)
}
_, err = stmt.Exec()
if err == nil {
t.Fatal("expected error")
}
if pge := err.(*Error); pge.Code.Name() != "invalid_text_representation" {
t.Fatalf("expected 'invalid input syntax for integer' error, got %s (%+v)", pge.Code.Name(), pge)
}
}
func TestCopyOutsideOfTxnError(t *testing.T) {
db := openTestConn(t)
defer db.Close()
_, err := db.Prepare(CopyIn("temp", "num"))
if err == nil {
t.Fatal("COPY outside of transaction did not return an error")
}
if err != errCopyNotSupportedOutsideTxn {
t.Fatalf("expected %s, got %s", err, err.Error())
}
}
func TestCopyInBinaryError(t *testing.T) {
db := openTestConn(t)
defer db.Close()
txn, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer txn.Rollback()
_, err = txn.Exec("CREATE TEMP TABLE temp (num INTEGER)")
if err != nil {
t.Fatal(err)
}
_, err = txn.Prepare("COPY temp (num) FROM STDIN WITH binary")
if err != errBinaryCopyNotSupported {
t.Fatalf("expected %s, got %+v", errBinaryCopyNotSupported, err)
}
// check that the protocol is in a valid state
err = txn.Rollback()
if err != nil {
t.Fatal(err)
}
}
func TestCopyFromError(t *testing.T) {
db := openTestConn(t)
defer db.Close()
txn, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer txn.Rollback()
_, err = txn.Exec("CREATE TEMP TABLE temp (num INTEGER)")
if err != nil {
t.Fatal(err)
}
_, err = txn.Prepare("COPY temp (num) TO STDOUT")
if err != errCopyToNotSupported {
t.Fatalf("expected %s, got %+v", errCopyToNotSupported, err)
}
// check that the protocol is in a valid state
err = txn.Rollback()
if err != nil {
t.Fatal(err)
}
}
func TestCopySyntaxError(t *testing.T) {
db := openTestConn(t)
defer db.Close()
txn, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer txn.Rollback()
_, err = txn.Prepare("COPY ")
if err == nil {
t.Fatal("expected error")
}
if pge := err.(*Error); pge.Code.Name() != "syntax_error" {
t.Fatalf("expected syntax error, got %s (%+v)", pge.Code.Name(), pge)
}
// check that the protocol is in a valid state
err = txn.Rollback()
if err != nil {
t.Fatal(err)
}
}
// Tests for connection errors in copyin.resploop()
func TestCopyRespLoopConnectionError(t *testing.T) {
db := openTestConn(t)
defer db.Close()
txn, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer txn.Rollback()
var pid int
err = txn.QueryRow("SELECT pg_backend_pid()").Scan(&pid)
if err != nil {
t.Fatal(err)
}
_, err = txn.Exec("CREATE TEMP TABLE temp (a int)")
if err != nil {
t.Fatal(err)
}
stmt, err := txn.Prepare(CopyIn("temp", "a"))
if err != nil {
t.Fatal(err)
}
_, err = db.Exec("SELECT pg_terminate_backend($1)", pid)
if err != nil {
t.Fatal(err)
}
if getServerVersion(t, db) < 90500 {
// We have to try and send something over, since postgres before
// version 9.5 won't process SIGTERMs while it's waiting for
// CopyData/CopyEnd messages; see tcop/postgres.c.
_, err = stmt.Exec(1)
if err != nil {
t.Fatal(err)
}
}
_, err = stmt.Exec()
if err == nil {
t.Fatalf("expected error")
}
pge, ok := err.(*Error)
if !ok {
t.Fatalf("expected *pq.Error, got %+#v", err)
} else if pge.Code.Name() != "admin_shutdown" {
t.Fatalf("expected admin_shutdown, got %s", pge.Code.Name())
}
err = stmt.Close()
if err != nil {
t.Fatal(err)
}
}
func BenchmarkCopyIn(b *testing.B) {
db := openTestConn(b)
defer db.Close()
txn, err := db.Begin()
if err != nil {
b.Fatal(err)
}
defer txn.Rollback()
_, err = txn.Exec("CREATE TEMP TABLE temp (a int, b varchar)")
if err != nil {
b.Fatal(err)
}
stmt, err := txn.Prepare(CopyIn("temp", "a", "b"))
if err != nil {
b.Fatal(err)
}
for i := 0; i < b.N; i++ {
_, err = stmt.Exec(int64(i), "hello world!")
if err != nil {
b.Fatal(err)
}
}
_, err = stmt.Exec()
if err != nil {
b.Fatal(err)
}
err = stmt.Close()
if err != nil {
b.Fatal(err)
}
var num int
err = txn.QueryRow("SELECT COUNT(*) FROM temp").Scan(&num)
if err != nil {
b.Fatal(err)
}
if num != b.N {
b.Fatalf("expected %d items, not %d", b.N, num)
}
}

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vendor/src/github.com/lib/pq/doc.go vendored Normal file
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/*
Package pq is a pure Go Postgres driver for the database/sql package.
In most cases clients will use the database/sql package instead of
using this package directly. For example:
import (
"database/sql"
_ "github.com/lib/pq"
)
func main() {
db, err := sql.Open("postgres", "user=pqgotest dbname=pqgotest sslmode=verify-full")
if err != nil {
log.Fatal(err)
}
age := 21
rows, err := db.Query("SELECT name FROM users WHERE age = $1", age)
…
}
You can also connect to a database using a URL. For example:
db, err := sql.Open("postgres", "postgres://pqgotest:password@localhost/pqgotest?sslmode=verify-full")
Connection String Parameters
Similarly to libpq, when establishing a connection using pq you are expected to
supply a connection string containing zero or more parameters.
A subset of the connection parameters supported by libpq are also supported by pq.
Additionally, pq also lets you specify run-time parameters (such as search_path or work_mem)
directly in the connection string. This is different from libpq, which does not allow
run-time parameters in the connection string, instead requiring you to supply
them in the options parameter.
For compatibility with libpq, the following special connection parameters are
supported:
* dbname - The name of the database to connect to
* user - The user to sign in as
* password - The user's password
* host - The host to connect to. Values that start with / are for unix domain sockets. (default is localhost)
* port - The port to bind to. (default is 5432)
* sslmode - Whether or not to use SSL (default is require, this is not the default for libpq)
* fallback_application_name - An application_name to fall back to if one isn't provided.
* connect_timeout - Maximum wait for connection, in seconds. Zero or not specified means wait indefinitely.
* sslcert - Cert file location. The file must contain PEM encoded data.
* sslkey - Key file location. The file must contain PEM encoded data.
* sslrootcert - The location of the root certificate file. The file must contain PEM encoded data.
Valid values for sslmode are:
* disable - No SSL
* require - Always SSL (skip verification)
* verify-ca - Always SSL (verify that the certificate presented by the server was signed by a trusted CA)
* verify-full - Always SSL (verify that the certification presented by the server was signed by a trusted CA and the server host name matches the one in the certificate)
See http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING
for more information about connection string parameters.
Use single quotes for values that contain whitespace:
"user=pqgotest password='with spaces'"
A backslash will escape the next character in values:
"user=space\ man password='it\'s valid'
Note that the connection parameter client_encoding (which sets the
text encoding for the connection) may be set but must be "UTF8",
matching with the same rules as Postgres. It is an error to provide
any other value.
In addition to the parameters listed above, any run-time parameter that can be
set at backend start time can be set in the connection string. For more
information, see
http://www.postgresql.org/docs/current/static/runtime-config.html.
Most environment variables as specified at http://www.postgresql.org/docs/current/static/libpq-envars.html
supported by libpq are also supported by pq. If any of the environment
variables not supported by pq are set, pq will panic during connection
establishment. Environment variables have a lower precedence than explicitly
provided connection parameters.
Queries
database/sql does not dictate any specific format for parameter
markers in query strings, and pq uses the Postgres-native ordinal markers,
as shown above. The same marker can be reused for the same parameter:
rows, err := db.Query(`SELECT name FROM users WHERE favorite_fruit = $1
OR age BETWEEN $2 AND $2 + 3`, "orange", 64)
pq does not support the LastInsertId() method of the Result type in database/sql.
To return the identifier of an INSERT (or UPDATE or DELETE), use the Postgres
RETURNING clause with a standard Query or QueryRow call:
var userid int
err := db.QueryRow(`INSERT INTO users(name, favorite_fruit, age)
VALUES('beatrice', 'starfruit', 93) RETURNING id`).Scan(&userid)
For more details on RETURNING, see the Postgres documentation:
http://www.postgresql.org/docs/current/static/sql-insert.html
http://www.postgresql.org/docs/current/static/sql-update.html
http://www.postgresql.org/docs/current/static/sql-delete.html
For additional instructions on querying see the documentation for the database/sql package.
Errors
pq may return errors of type *pq.Error which can be interrogated for error details:
if err, ok := err.(*pq.Error); ok {
fmt.Println("pq error:", err.Code.Name())
}
See the pq.Error type for details.
Bulk imports
You can perform bulk imports by preparing a statement returned by pq.CopyIn (or
pq.CopyInSchema) in an explicit transaction (sql.Tx). The returned statement
handle can then be repeatedly "executed" to copy data into the target table.
After all data has been processed you should call Exec() once with no arguments
to flush all buffered data. Any call to Exec() might return an error which
should be handled appropriately, but because of the internal buffering an error
returned by Exec() might not be related to the data passed in the call that
failed.
CopyIn uses COPY FROM internally. It is not possible to COPY outside of an
explicit transaction in pq.
Usage example:
txn, err := db.Begin()
if err != nil {
log.Fatal(err)
}
stmt, err := txn.Prepare(pq.CopyIn("users", "name", "age"))
if err != nil {
log.Fatal(err)
}
for _, user := range users {
_, err = stmt.Exec(user.Name, int64(user.Age))
if err != nil {
log.Fatal(err)
}
}
_, err = stmt.Exec()
if err != nil {
log.Fatal(err)
}
err = stmt.Close()
if err != nil {
log.Fatal(err)
}
err = txn.Commit()
if err != nil {
log.Fatal(err)
}
Notifications
PostgreSQL supports a simple publish/subscribe model over database
connections. See http://www.postgresql.org/docs/current/static/sql-notify.html
for more information about the general mechanism.
To start listening for notifications, you first have to open a new connection
to the database by calling NewListener. This connection can not be used for
anything other than LISTEN / NOTIFY. Calling Listen will open a "notification
channel"; once a notification channel is open, a notification generated on that
channel will effect a send on the Listener.Notify channel. A notification
channel will remain open until Unlisten is called, though connection loss might
result in some notifications being lost. To solve this problem, Listener sends
a nil pointer over the Notify channel any time the connection is re-established
following a connection loss. The application can get information about the
state of the underlying connection by setting an event callback in the call to
NewListener.
A single Listener can safely be used from concurrent goroutines, which means
that there is often no need to create more than one Listener in your
application. However, a Listener is always connected to a single database, so
you will need to create a new Listener instance for every database you want to
receive notifications in.
The channel name in both Listen and Unlisten is case sensitive, and can contain
any characters legal in an identifier (see
http://www.postgresql.org/docs/current/static/sql-syntax-lexical.html#SQL-SYNTAX-IDENTIFIERS
for more information). Note that the channel name will be truncated to 63
bytes by the PostgreSQL server.
You can find a complete, working example of Listener usage at
http://godoc.org/github.com/lib/pq/listen_example.
*/
package pq

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vendor/src/github.com/lib/pq/encode.go vendored Normal file
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package pq
import (
"bytes"
"database/sql/driver"
"encoding/binary"
"encoding/hex"
"fmt"
"math"
"strconv"
"strings"
"sync"
"time"
"github.com/lib/pq/oid"
)
func binaryEncode(parameterStatus *parameterStatus, x interface{}) []byte {
switch v := x.(type) {
case []byte:
return v
default:
return encode(parameterStatus, x, oid.T_unknown)
}
panic("not reached")
}
func encode(parameterStatus *parameterStatus, x interface{}, pgtypOid oid.Oid) []byte {
switch v := x.(type) {
case int64:
return strconv.AppendInt(nil, v, 10)
case float64:
return strconv.AppendFloat(nil, v, 'f', -1, 64)
case []byte:
if pgtypOid == oid.T_bytea {
return encodeBytea(parameterStatus.serverVersion, v)
}
return v
case string:
if pgtypOid == oid.T_bytea {
return encodeBytea(parameterStatus.serverVersion, []byte(v))
}
return []byte(v)
case bool:
return strconv.AppendBool(nil, v)
case time.Time:
return formatTs(v)
default:
errorf("encode: unknown type for %T", v)
}
panic("not reached")
}
func decode(parameterStatus *parameterStatus, s []byte, typ oid.Oid, f format) interface{} {
if f == formatBinary {
return binaryDecode(parameterStatus, s, typ)
} else {
return textDecode(parameterStatus, s, typ)
}
}
func binaryDecode(parameterStatus *parameterStatus, s []byte, typ oid.Oid) interface{} {
switch typ {
case oid.T_bytea:
return s
case oid.T_int8:
return int64(binary.BigEndian.Uint64(s))
case oid.T_int4:
return int64(int32(binary.BigEndian.Uint32(s)))
case oid.T_int2:
return int64(int16(binary.BigEndian.Uint16(s)))
default:
errorf("don't know how to decode binary parameter of type %u", uint32(typ))
}
panic("not reached")
}
func textDecode(parameterStatus *parameterStatus, s []byte, typ oid.Oid) interface{} {
switch typ {
case oid.T_bytea:
return parseBytea(s)
case oid.T_timestamptz:
return parseTs(parameterStatus.currentLocation, string(s))
case oid.T_timestamp, oid.T_date:
return parseTs(nil, string(s))
case oid.T_time:
return mustParse("15:04:05", typ, s)
case oid.T_timetz:
return mustParse("15:04:05-07", typ, s)
case oid.T_bool:
return s[0] == 't'
case oid.T_int8, oid.T_int4, oid.T_int2:
i, err := strconv.ParseInt(string(s), 10, 64)
if err != nil {
errorf("%s", err)
}
return i
case oid.T_float4, oid.T_float8:
bits := 64
if typ == oid.T_float4 {
bits = 32
}
f, err := strconv.ParseFloat(string(s), bits)
if err != nil {
errorf("%s", err)
}
return f
}
return s
}
// appendEncodedText encodes item in text format as required by COPY
// and appends to buf
func appendEncodedText(parameterStatus *parameterStatus, buf []byte, x interface{}) []byte {
switch v := x.(type) {
case int64:
return strconv.AppendInt(buf, v, 10)
case float64:
return strconv.AppendFloat(buf, v, 'f', -1, 64)
case []byte:
encodedBytea := encodeBytea(parameterStatus.serverVersion, v)
return appendEscapedText(buf, string(encodedBytea))
case string:
return appendEscapedText(buf, v)
case bool:
return strconv.AppendBool(buf, v)
case time.Time:
return append(buf, formatTs(v)...)
case nil:
return append(buf, "\\N"...)
default:
errorf("encode: unknown type for %T", v)
}
panic("not reached")
}
func appendEscapedText(buf []byte, text string) []byte {
escapeNeeded := false
startPos := 0
var c byte
// check if we need to escape
for i := 0; i < len(text); i++ {
c = text[i]
if c == '\\' || c == '\n' || c == '\r' || c == '\t' {
escapeNeeded = true
startPos = i
break
}
}
if !escapeNeeded {
return append(buf, text...)
}
// copy till first char to escape, iterate the rest
result := append(buf, text[:startPos]...)
for i := startPos; i < len(text); i++ {
c = text[i]
switch c {
case '\\':
result = append(result, '\\', '\\')
case '\n':
result = append(result, '\\', 'n')
case '\r':
result = append(result, '\\', 'r')
case '\t':
result = append(result, '\\', 't')
default:
result = append(result, c)
}
}
return result
}
func mustParse(f string, typ oid.Oid, s []byte) time.Time {
str := string(s)
// check for a 30-minute-offset timezone
if (typ == oid.T_timestamptz || typ == oid.T_timetz) &&
str[len(str)-3] == ':' {
f += ":00"
}
t, err := time.Parse(f, str)
if err != nil {
errorf("decode: %s", err)
}
return t
}
func expect(str, char string, pos int) {
if c := str[pos : pos+1]; c != char {
errorf("expected '%v' at position %v; got '%v'", char, pos, c)
}
}
func mustAtoi(str string) int {
result, err := strconv.Atoi(str)
if err != nil {
errorf("expected number; got '%v'", str)
}
return result
}
// The location cache caches the time zones typically used by the client.
type locationCache struct {
cache map[int]*time.Location
lock sync.Mutex
}
// All connections share the same list of timezones. Benchmarking shows that
// about 5% speed could be gained by putting the cache in the connection and
// losing the mutex, at the cost of a small amount of memory and a somewhat
// significant increase in code complexity.
var globalLocationCache *locationCache = newLocationCache()
func newLocationCache() *locationCache {
return &locationCache{cache: make(map[int]*time.Location)}
}
// Returns the cached timezone for the specified offset, creating and caching
// it if necessary.
func (c *locationCache) getLocation(offset int) *time.Location {
c.lock.Lock()
defer c.lock.Unlock()
location, ok := c.cache[offset]
if !ok {
location = time.FixedZone("", offset)
c.cache[offset] = location
}
return location
}
var infinityTsEnabled = false
var infinityTsNegative time.Time
var infinityTsPositive time.Time
const (
infinityTsEnabledAlready = "pq: infinity timestamp enabled already"
infinityTsNegativeMustBeSmaller = "pq: infinity timestamp: negative value must be smaller (before) than positive"
)
/*
* If EnableInfinityTs is not called, "-infinity" and "infinity" will return
* []byte("-infinity") and []byte("infinity") respectively, and potentially
* cause error "sql: Scan error on column index 0: unsupported driver -> Scan pair: []uint8 -> *time.Time",
* when scanning into a time.Time value.
*
* Once EnableInfinityTs has been called, all connections created using this
* driver will decode Postgres' "-infinity" and "infinity" for "timestamp",
* "timestamp with time zone" and "date" types to the predefined minimum and
* maximum times, respectively. When encoding time.Time values, any time which
* equals or preceeds the predefined minimum time will be encoded to
* "-infinity". Any values at or past the maximum time will similarly be
* encoded to "infinity".
*
*
* If EnableInfinityTs is called with negative >= positive, it will panic.
* Calling EnableInfinityTs after a connection has been established results in
* undefined behavior. If EnableInfinityTs is called more than once, it will
* panic.
*/
func EnableInfinityTs(negative time.Time, positive time.Time) {
if infinityTsEnabled {
panic(infinityTsEnabledAlready)
}
if !negative.Before(positive) {
panic(infinityTsNegativeMustBeSmaller)
}
infinityTsEnabled = true
infinityTsNegative = negative
infinityTsPositive = positive
}
/*
* Testing might want to toggle infinityTsEnabled
*/
func disableInfinityTs() {
infinityTsEnabled = false
}
// This is a time function specific to the Postgres default DateStyle
// setting ("ISO, MDY"), the only one we currently support. This
// accounts for the discrepancies between the parsing available with
// time.Parse and the Postgres date formatting quirks.
func parseTs(currentLocation *time.Location, str string) interface{} {
switch str {
case "-infinity":
if infinityTsEnabled {
return infinityTsNegative
}
return []byte(str)
case "infinity":
if infinityTsEnabled {
return infinityTsPositive
}
return []byte(str)
}
monSep := strings.IndexRune(str, '-')
// this is Gregorian year, not ISO Year
// In Gregorian system, the year 1 BC is followed by AD 1
year := mustAtoi(str[:monSep])
daySep := monSep + 3
month := mustAtoi(str[monSep+1 : daySep])
expect(str, "-", daySep)
timeSep := daySep + 3
day := mustAtoi(str[daySep+1 : timeSep])
var hour, minute, second int
if len(str) > monSep+len("01-01")+1 {
expect(str, " ", timeSep)
minSep := timeSep + 3
expect(str, ":", minSep)
hour = mustAtoi(str[timeSep+1 : minSep])
secSep := minSep + 3
expect(str, ":", secSep)
minute = mustAtoi(str[minSep+1 : secSep])
secEnd := secSep + 3
second = mustAtoi(str[secSep+1 : secEnd])
}
remainderIdx := monSep + len("01-01 00:00:00") + 1
// Three optional (but ordered) sections follow: the
// fractional seconds, the time zone offset, and the BC
// designation. We set them up here and adjust the other
// offsets if the preceding sections exist.
nanoSec := 0
tzOff := 0
if remainderIdx < len(str) && str[remainderIdx:remainderIdx+1] == "." {
fracStart := remainderIdx + 1
fracOff := strings.IndexAny(str[fracStart:], "-+ ")
if fracOff < 0 {
fracOff = len(str) - fracStart
}
fracSec := mustAtoi(str[fracStart : fracStart+fracOff])
nanoSec = fracSec * (1000000000 / int(math.Pow(10, float64(fracOff))))
remainderIdx += fracOff + 1
}
if tzStart := remainderIdx; tzStart < len(str) && (str[tzStart:tzStart+1] == "-" || str[tzStart:tzStart+1] == "+") {
// time zone separator is always '-' or '+' (UTC is +00)
var tzSign int
if c := str[tzStart : tzStart+1]; c == "-" {
tzSign = -1
} else if c == "+" {
tzSign = +1
} else {
errorf("expected '-' or '+' at position %v; got %v", tzStart, c)
}
tzHours := mustAtoi(str[tzStart+1 : tzStart+3])
remainderIdx += 3
var tzMin, tzSec int
if tzStart+3 < len(str) && str[tzStart+3:tzStart+4] == ":" {
tzMin = mustAtoi(str[tzStart+4 : tzStart+6])
remainderIdx += 3
}
if tzStart+6 < len(str) && str[tzStart+6:tzStart+7] == ":" {
tzSec = mustAtoi(str[tzStart+7 : tzStart+9])
remainderIdx += 3
}
tzOff = tzSign * ((tzHours * 60 * 60) + (tzMin * 60) + tzSec)
}
var isoYear int
if remainderIdx < len(str) && str[remainderIdx:remainderIdx+3] == " BC" {
isoYear = 1 - year
remainderIdx += 3
} else {
isoYear = year
}
if remainderIdx < len(str) {
errorf("expected end of input, got %v", str[remainderIdx:])
}
t := time.Date(isoYear, time.Month(month), day,
hour, minute, second, nanoSec,
globalLocationCache.getLocation(tzOff))
if currentLocation != nil {
// Set the location of the returned Time based on the session's
// TimeZone value, but only if the local time zone database agrees with
// the remote database on the offset.
lt := t.In(currentLocation)
_, newOff := lt.Zone()
if newOff == tzOff {
t = lt
}
}
return t
}
// formatTs formats t into a format postgres understands.
func formatTs(t time.Time) (b []byte) {
if infinityTsEnabled {
// t <= -infinity : ! (t > -infinity)
if !t.After(infinityTsNegative) {
return []byte("-infinity")
}
// t >= infinity : ! (!t < infinity)
if !t.Before(infinityTsPositive) {
return []byte("infinity")
}
}
// Need to send dates before 0001 A.D. with " BC" suffix, instead of the
// minus sign preferred by Go.
// Beware, "0000" in ISO is "1 BC", "-0001" is "2 BC" and so on
bc := false
if t.Year() <= 0 {
// flip year sign, and add 1, e.g: "0" will be "1", and "-10" will be "11"
t = t.AddDate((-t.Year())*2+1, 0, 0)
bc = true
}
b = []byte(t.Format(time.RFC3339Nano))
_, offset := t.Zone()
offset = offset % 60
if offset != 0 {
// RFC3339Nano already printed the minus sign
if offset < 0 {
offset = -offset
}
b = append(b, ':')
if offset < 10 {
b = append(b, '0')
}
b = strconv.AppendInt(b, int64(offset), 10)
}
if bc {
b = append(b, " BC"...)
}
return b
}
// Parse a bytea value received from the server. Both "hex" and the legacy
// "escape" format are supported.
func parseBytea(s []byte) (result []byte) {
if len(s) >= 2 && bytes.Equal(s[:2], []byte("\\x")) {
// bytea_output = hex
s = s[2:] // trim off leading "\\x"
result = make([]byte, hex.DecodedLen(len(s)))
_, err := hex.Decode(result, s)
if err != nil {
errorf("%s", err)
}
} else {
// bytea_output = escape
for len(s) > 0 {
if s[0] == '\\' {
// escaped '\\'
if len(s) >= 2 && s[1] == '\\' {
result = append(result, '\\')
s = s[2:]
continue
}
// '\\' followed by an octal number
if len(s) < 4 {
errorf("invalid bytea sequence %v", s)
}
r, err := strconv.ParseInt(string(s[1:4]), 8, 9)
if err != nil {
errorf("could not parse bytea value: %s", err.Error())
}
result = append(result, byte(r))
s = s[4:]
} else {
// We hit an unescaped, raw byte. Try to read in as many as
// possible in one go.
i := bytes.IndexByte(s, '\\')
if i == -1 {
result = append(result, s...)
break
}
result = append(result, s[:i]...)
s = s[i:]
}
}
}
return result
}
func encodeBytea(serverVersion int, v []byte) (result []byte) {
if serverVersion >= 90000 {
// Use the hex format if we know that the server supports it
result = make([]byte, 2+hex.EncodedLen(len(v)))
result[0] = '\\'
result[1] = 'x'
hex.Encode(result[2:], v)
} else {
// .. or resort to "escape"
for _, b := range v {
if b == '\\' {
result = append(result, '\\', '\\')
} else if b < 0x20 || b > 0x7e {
result = append(result, []byte(fmt.Sprintf("\\%03o", b))...)
} else {
result = append(result, b)
}
}
}
return result
}
// NullTime represents a time.Time that may be null. NullTime implements the
// sql.Scanner interface so it can be used as a scan destination, similar to
// sql.NullString.
type NullTime struct {
Time time.Time
Valid bool // Valid is true if Time is not NULL
}
// Scan implements the Scanner interface.
func (nt *NullTime) Scan(value interface{}) error {
nt.Time, nt.Valid = value.(time.Time)
return nil
}
// Value implements the driver Valuer interface.
func (nt NullTime) Value() (driver.Value, error) {
if !nt.Valid {
return nil, nil
}
return nt.Time, nil
}

719
vendor/src/github.com/lib/pq/encode_test.go vendored Normal file
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@ -0,0 +1,719 @@
package pq
import (
"bytes"
"database/sql"
"fmt"
"testing"
"time"
"github.com/lib/pq/oid"
)
func TestScanTimestamp(t *testing.T) {
var nt NullTime
tn := time.Now()
nt.Scan(tn)
if !nt.Valid {
t.Errorf("Expected Valid=false")
}
if nt.Time != tn {
t.Errorf("Time value mismatch")
}
}
func TestScanNilTimestamp(t *testing.T) {
var nt NullTime
nt.Scan(nil)
if nt.Valid {
t.Errorf("Expected Valid=false")
}
}
var timeTests = []struct {
str string
timeval time.Time
}{
{"22001-02-03", time.Date(22001, time.February, 3, 0, 0, 0, 0, time.FixedZone("", 0))},
{"2001-02-03", time.Date(2001, time.February, 3, 0, 0, 0, 0, time.FixedZone("", 0))},
{"2001-02-03 04:05:06", time.Date(2001, time.February, 3, 4, 5, 6, 0, time.FixedZone("", 0))},
{"2001-02-03 04:05:06.000001", time.Date(2001, time.February, 3, 4, 5, 6, 1000, time.FixedZone("", 0))},
{"2001-02-03 04:05:06.00001", time.Date(2001, time.February, 3, 4, 5, 6, 10000, time.FixedZone("", 0))},
{"2001-02-03 04:05:06.0001", time.Date(2001, time.February, 3, 4, 5, 6, 100000, time.FixedZone("", 0))},
{"2001-02-03 04:05:06.001", time.Date(2001, time.February, 3, 4, 5, 6, 1000000, time.FixedZone("", 0))},
{"2001-02-03 04:05:06.01", time.Date(2001, time.February, 3, 4, 5, 6, 10000000, time.FixedZone("", 0))},
{"2001-02-03 04:05:06.1", time.Date(2001, time.February, 3, 4, 5, 6, 100000000, time.FixedZone("", 0))},
{"2001-02-03 04:05:06.12", time.Date(2001, time.February, 3, 4, 5, 6, 120000000, time.FixedZone("", 0))},
{"2001-02-03 04:05:06.123", time.Date(2001, time.February, 3, 4, 5, 6, 123000000, time.FixedZone("", 0))},
{"2001-02-03 04:05:06.1234", time.Date(2001, time.February, 3, 4, 5, 6, 123400000, time.FixedZone("", 0))},
{"2001-02-03 04:05:06.12345", time.Date(2001, time.February, 3, 4, 5, 6, 123450000, time.FixedZone("", 0))},
{"2001-02-03 04:05:06.123456", time.Date(2001, time.February, 3, 4, 5, 6, 123456000, time.FixedZone("", 0))},
{"2001-02-03 04:05:06.123-07", time.Date(2001, time.February, 3, 4, 5, 6, 123000000,
time.FixedZone("", -7*60*60))},
{"2001-02-03 04:05:06-07", time.Date(2001, time.February, 3, 4, 5, 6, 0,
time.FixedZone("", -7*60*60))},
{"2001-02-03 04:05:06-07:42", time.Date(2001, time.February, 3, 4, 5, 6, 0,
time.FixedZone("", -(7*60*60+42*60)))},
{"2001-02-03 04:05:06-07:30:09", time.Date(2001, time.February, 3, 4, 5, 6, 0,
time.FixedZone("", -(7*60*60+30*60+9)))},
{"2001-02-03 04:05:06+07", time.Date(2001, time.February, 3, 4, 5, 6, 0,
time.FixedZone("", 7*60*60))},
{"0011-02-03 04:05:06 BC", time.Date(-10, time.February, 3, 4, 5, 6, 0, time.FixedZone("", 0))},
{"0011-02-03 04:05:06.123 BC", time.Date(-10, time.February, 3, 4, 5, 6, 123000000, time.FixedZone("", 0))},
{"0011-02-03 04:05:06.123-07 BC", time.Date(-10, time.February, 3, 4, 5, 6, 123000000,
time.FixedZone("", -7*60*60))},
{"0001-02-03 04:05:06.123", time.Date(1, time.February, 3, 4, 5, 6, 123000000, time.FixedZone("", 0))},
{"0001-02-03 04:05:06.123 BC", time.Date(1, time.February, 3, 4, 5, 6, 123000000, time.FixedZone("", 0)).AddDate(-1, 0, 0)},
{"0001-02-03 04:05:06.123 BC", time.Date(0, time.February, 3, 4, 5, 6, 123000000, time.FixedZone("", 0))},
{"0002-02-03 04:05:06.123 BC", time.Date(0, time.February, 3, 4, 5, 6, 123000000, time.FixedZone("", 0)).AddDate(-1, 0, 0)},
{"0002-02-03 04:05:06.123 BC", time.Date(-1, time.February, 3, 4, 5, 6, 123000000, time.FixedZone("", 0))},
{"12345-02-03 04:05:06.1", time.Date(12345, time.February, 3, 4, 5, 6, 100000000, time.FixedZone("", 0))},
{"123456-02-03 04:05:06.1", time.Date(123456, time.February, 3, 4, 5, 6, 100000000, time.FixedZone("", 0))},
}
// Helper function for the two tests below
func tryParse(str string) (t time.Time, err error) {
defer func() {
if p := recover(); p != nil {
err = fmt.Errorf("%v", p)
return
}
}()
i := parseTs(nil, str)
t, ok := i.(time.Time)
if !ok {
err = fmt.Errorf("Not a time.Time type, got %#v", i)
}
return
}
// Test that parsing the string results in the expected value.
func TestParseTs(t *testing.T) {
for i, tt := range timeTests {
val, err := tryParse(tt.str)
if err != nil {
t.Errorf("%d: got error: %v", i, err)
} else if val.String() != tt.timeval.String() {
t.Errorf("%d: expected to parse %q into %q; got %q",
i, tt.str, tt.timeval, val)
}
}
}
// Now test that sending the value into the database and parsing it back
// returns the same time.Time value.
func TestEncodeAndParseTs(t *testing.T) {
db, err := openTestConnConninfo("timezone='Etc/UTC'")
if err != nil {
t.Fatal(err)
}
defer db.Close()
for i, tt := range timeTests {
var dbstr string
err = db.QueryRow("SELECT ($1::timestamptz)::text", tt.timeval).Scan(&dbstr)
if err != nil {
t.Errorf("%d: could not send value %q to the database: %s", i, tt.timeval, err)
continue
}
val, err := tryParse(dbstr)
if err != nil {
t.Errorf("%d: could not parse value %q: %s", i, dbstr, err)
continue
}
val = val.In(tt.timeval.Location())
if val.String() != tt.timeval.String() {
t.Errorf("%d: expected to parse %q into %q; got %q", i, dbstr, tt.timeval, val)
}
}
}
var formatTimeTests = []struct {
time time.Time
expected string
}{
{time.Time{}, "0001-01-01T00:00:00Z"},
{time.Date(2001, time.February, 3, 4, 5, 6, 123456789, time.FixedZone("", 0)), "2001-02-03T04:05:06.123456789Z"},
{time.Date(2001, time.February, 3, 4, 5, 6, 123456789, time.FixedZone("", 2*60*60)), "2001-02-03T04:05:06.123456789+02:00"},
{time.Date(2001, time.February, 3, 4, 5, 6, 123456789, time.FixedZone("", -6*60*60)), "2001-02-03T04:05:06.123456789-06:00"},
{time.Date(2001, time.February, 3, 4, 5, 6, 0, time.FixedZone("", -(7*60*60+30*60+9))), "2001-02-03T04:05:06-07:30:09"},
{time.Date(1, time.February, 3, 4, 5, 6, 123456789, time.FixedZone("", 0)), "0001-02-03T04:05:06.123456789Z"},
{time.Date(1, time.February, 3, 4, 5, 6, 123456789, time.FixedZone("", 2*60*60)), "0001-02-03T04:05:06.123456789+02:00"},
{time.Date(1, time.February, 3, 4, 5, 6, 123456789, time.FixedZone("", -6*60*60)), "0001-02-03T04:05:06.123456789-06:00"},
{time.Date(0, time.February, 3, 4, 5, 6, 123456789, time.FixedZone("", 0)), "0001-02-03T04:05:06.123456789Z BC"},
{time.Date(0, time.February, 3, 4, 5, 6, 123456789, time.FixedZone("", 2*60*60)), "0001-02-03T04:05:06.123456789+02:00 BC"},
{time.Date(0, time.February, 3, 4, 5, 6, 123456789, time.FixedZone("", -6*60*60)), "0001-02-03T04:05:06.123456789-06:00 BC"},
{time.Date(1, time.February, 3, 4, 5, 6, 0, time.FixedZone("", -(7*60*60+30*60+9))), "0001-02-03T04:05:06-07:30:09"},
{time.Date(0, time.February, 3, 4, 5, 6, 0, time.FixedZone("", -(7*60*60+30*60+9))), "0001-02-03T04:05:06-07:30:09 BC"},
}
func TestFormatTs(t *testing.T) {
for i, tt := range formatTimeTests {
val := string(formatTs(tt.time))
if val != tt.expected {
t.Errorf("%d: incorrect time format %q, want %q", i, val, tt.expected)
}
}
}
func TestTimestampWithTimeZone(t *testing.T) {
db := openTestConn(t)
defer db.Close()
tx, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer tx.Rollback()
// try several different locations, all included in Go's zoneinfo.zip
for _, locName := range []string{
"UTC",
"America/Chicago",
"America/New_York",
"Australia/Darwin",
"Australia/Perth",
} {
loc, err := time.LoadLocation(locName)
if err != nil {
t.Logf("Could not load time zone %s - skipping", locName)
continue
}
// Postgres timestamps have a resolution of 1 microsecond, so don't
// use the full range of the Nanosecond argument
refTime := time.Date(2012, 11, 6, 10, 23, 42, 123456000, loc)
for _, pgTimeZone := range []string{"US/Eastern", "Australia/Darwin"} {
// Switch Postgres's timezone to test different output timestamp formats
_, err = tx.Exec(fmt.Sprintf("set time zone '%s'", pgTimeZone))
if err != nil {
t.Fatal(err)
}
var gotTime time.Time
row := tx.QueryRow("select $1::timestamp with time zone", refTime)
err = row.Scan(&gotTime)
if err != nil {
t.Fatal(err)
}
if !refTime.Equal(gotTime) {
t.Errorf("timestamps not equal: %s != %s", refTime, gotTime)
}
// check that the time zone is set correctly based on TimeZone
pgLoc, err := time.LoadLocation(pgTimeZone)
if err != nil {
t.Logf("Could not load time zone %s - skipping", pgLoc)
continue
}
translated := refTime.In(pgLoc)
if translated.String() != gotTime.String() {
t.Errorf("timestamps not equal: %s != %s", translated, gotTime)
}
}
}
}
func TestTimestampWithOutTimezone(t *testing.T) {
db := openTestConn(t)
defer db.Close()
test := func(ts, pgts string) {
r, err := db.Query("SELECT $1::timestamp", pgts)
if err != nil {
t.Fatalf("Could not run query: %v", err)
}
n := r.Next()
if n != true {
t.Fatal("Expected at least one row")
}
var result time.Time
err = r.Scan(&result)
if err != nil {
t.Fatalf("Did not expect error scanning row: %v", err)
}
expected, err := time.Parse(time.RFC3339, ts)
if err != nil {
t.Fatalf("Could not parse test time literal: %v", err)
}
if !result.Equal(expected) {
t.Fatalf("Expected time to match %v: got mismatch %v",
expected, result)
}
n = r.Next()
if n != false {
t.Fatal("Expected only one row")
}
}
test("2000-01-01T00:00:00Z", "2000-01-01T00:00:00")
// Test higher precision time
test("2013-01-04T20:14:58.80033Z", "2013-01-04 20:14:58.80033")
}
func TestInfinityTimestamp(t *testing.T) {
db := openTestConn(t)
defer db.Close()
var err error
var resultT time.Time
expectedError := fmt.Errorf(`sql: Scan error on column index 0: unsupported driver -> Scan pair: []uint8 -> *time.Time`)
type testCases []struct {
Query string
Param string
ExpectedErr error
ExpectedVal interface{}
}
tc := testCases{
{"SELECT $1::timestamp", "-infinity", expectedError, "-infinity"},
{"SELECT $1::timestamptz", "-infinity", expectedError, "-infinity"},
{"SELECT $1::timestamp", "infinity", expectedError, "infinity"},
{"SELECT $1::timestamptz", "infinity", expectedError, "infinity"},
}
// try to assert []byte to time.Time
for _, q := range tc {
err = db.QueryRow(q.Query, q.Param).Scan(&resultT)
if err.Error() != q.ExpectedErr.Error() {
t.Errorf("Scanning -/+infinity, expected error, %q, got %q", q.ExpectedErr, err)
}
}
// yield []byte
for _, q := range tc {
var resultI interface{}
err = db.QueryRow(q.Query, q.Param).Scan(&resultI)
if err != nil {
t.Errorf("Scanning -/+infinity, expected no error, got %q", err)
}
result, ok := resultI.([]byte)
if !ok {
t.Errorf("Scanning -/+infinity, expected []byte, got %#v", resultI)
}
if string(result) != q.ExpectedVal {
t.Errorf("Scanning -/+infinity, expected %q, got %q", q.ExpectedVal, result)
}
}
y1500 := time.Date(1500, time.January, 1, 0, 0, 0, 0, time.UTC)
y2500 := time.Date(2500, time.January, 1, 0, 0, 0, 0, time.UTC)
EnableInfinityTs(y1500, y2500)
err = db.QueryRow("SELECT $1::timestamp", "infinity").Scan(&resultT)
if err != nil {
t.Errorf("Scanning infinity, expected no error, got %q", err)
}
if !resultT.Equal(y2500) {
t.Errorf("Scanning infinity, expected %q, got %q", y2500, resultT)
}
err = db.QueryRow("SELECT $1::timestamptz", "infinity").Scan(&resultT)
if err != nil {
t.Errorf("Scanning infinity, expected no error, got %q", err)
}
if !resultT.Equal(y2500) {
t.Errorf("Scanning Infinity, expected time %q, got %q", y2500, resultT.String())
}
err = db.QueryRow("SELECT $1::timestamp", "-infinity").Scan(&resultT)
if err != nil {
t.Errorf("Scanning -infinity, expected no error, got %q", err)
}
if !resultT.Equal(y1500) {
t.Errorf("Scanning -infinity, expected time %q, got %q", y1500, resultT.String())
}
err = db.QueryRow("SELECT $1::timestamptz", "-infinity").Scan(&resultT)
if err != nil {
t.Errorf("Scanning -infinity, expected no error, got %q", err)
}
if !resultT.Equal(y1500) {
t.Errorf("Scanning -infinity, expected time %q, got %q", y1500, resultT.String())
}
y_1500 := time.Date(-1500, time.January, 1, 0, 0, 0, 0, time.UTC)
y11500 := time.Date(11500, time.January, 1, 0, 0, 0, 0, time.UTC)
var s string
err = db.QueryRow("SELECT $1::timestamp::text", y_1500).Scan(&s)
if err != nil {
t.Errorf("Encoding -infinity, expected no error, got %q", err)
}
if s != "-infinity" {
t.Errorf("Encoding -infinity, expected %q, got %q", "-infinity", s)
}
err = db.QueryRow("SELECT $1::timestamptz::text", y_1500).Scan(&s)
if err != nil {
t.Errorf("Encoding -infinity, expected no error, got %q", err)
}
if s != "-infinity" {
t.Errorf("Encoding -infinity, expected %q, got %q", "-infinity", s)
}
err = db.QueryRow("SELECT $1::timestamp::text", y11500).Scan(&s)
if err != nil {
t.Errorf("Encoding infinity, expected no error, got %q", err)
}
if s != "infinity" {
t.Errorf("Encoding infinity, expected %q, got %q", "infinity", s)
}
err = db.QueryRow("SELECT $1::timestamptz::text", y11500).Scan(&s)
if err != nil {
t.Errorf("Encoding infinity, expected no error, got %q", err)
}
if s != "infinity" {
t.Errorf("Encoding infinity, expected %q, got %q", "infinity", s)
}
disableInfinityTs()
var panicErrorString string
func() {
defer func() {
panicErrorString, _ = recover().(string)
}()
EnableInfinityTs(y2500, y1500)
}()
if panicErrorString != infinityTsNegativeMustBeSmaller {
t.Errorf("Expected error, %q, got %q", infinityTsNegativeMustBeSmaller, panicErrorString)
}
}
func TestStringWithNul(t *testing.T) {
db := openTestConn(t)
defer db.Close()
hello0world := string("hello\x00world")
_, err := db.Query("SELECT $1::text", &hello0world)
if err == nil {
t.Fatal("Postgres accepts a string with nul in it; " +
"injection attacks may be plausible")
}
}
func TestByteSliceToText(t *testing.T) {
db := openTestConn(t)
defer db.Close()
b := []byte("hello world")
row := db.QueryRow("SELECT $1::text", b)
var result []byte
err := row.Scan(&result)
if err != nil {
t.Fatal(err)
}
if string(result) != string(b) {
t.Fatalf("expected %v but got %v", b, result)
}
}
func TestStringToBytea(t *testing.T) {
db := openTestConn(t)
defer db.Close()
b := "hello world"
row := db.QueryRow("SELECT $1::bytea", b)
var result []byte
err := row.Scan(&result)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(result, []byte(b)) {
t.Fatalf("expected %v but got %v", b, result)
}
}
func TestTextByteSliceToUUID(t *testing.T) {
db := openTestConn(t)
defer db.Close()
b := []byte("a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11")
row := db.QueryRow("SELECT $1::uuid", b)
var result string
err := row.Scan(&result)
if forceBinaryParameters() {
pqErr := err.(*Error)
if pqErr == nil {
t.Errorf("Expected to get error")
} else if pqErr.Code != "22P03" {
t.Fatalf("Expected to get invalid binary encoding error (22P03), got %s", pqErr.Code)
}
} else {
if err != nil {
t.Fatal(err)
}
if result != string(b) {
t.Fatalf("expected %v but got %v", b, result)
}
}
}
func TestBinaryByteSlicetoUUID(t *testing.T) {
db := openTestConn(t)
defer db.Close()
b := []byte{'\xa0','\xee','\xbc','\x99',
'\x9c', '\x0b',
'\x4e', '\xf8',
'\xbb', '\x00', '\x6b',
'\xb9', '\xbd', '\x38', '\x0a', '\x11'}
row := db.QueryRow("SELECT $1::uuid", b)
var result string
err := row.Scan(&result)
if forceBinaryParameters() {
if err != nil {
t.Fatal(err)
}
if result != string("a0eebc99-9c0b-4ef8-bb00-6bb9bd380a11") {
t.Fatalf("expected %v but got %v", b, result)
}
} else {
pqErr := err.(*Error)
if pqErr == nil {
t.Errorf("Expected to get error")
} else if pqErr.Code != "22021" {
t.Fatalf("Expected to get invalid byte sequence for encoding error (22021), got %s", pqErr.Code)
}
}
}
func TestStringToUUID(t *testing.T) {
db := openTestConn(t)
defer db.Close()
s := "a0eebc99-9c0b-4ef8-bb00-6bb9bd380a11"
row := db.QueryRow("SELECT $1::uuid", s)
var result string
err := row.Scan(&result)
if err != nil {
t.Fatal(err)
}
if result != s {
t.Fatalf("expected %v but got %v", s, result)
}
}
func TestTextByteSliceToInt(t *testing.T) {
db := openTestConn(t)
defer db.Close()
expected := 12345678
b := []byte(fmt.Sprintf("%d", expected))
row := db.QueryRow("SELECT $1::int", b)
var result int
err := row.Scan(&result)
if forceBinaryParameters() {
pqErr := err.(*Error)
if pqErr == nil {
t.Errorf("Expected to get error")
} else if pqErr.Code != "22P03" {
t.Fatalf("Expected to get invalid binary encoding error (22P03), got %s", pqErr.Code)
}
} else {
if err != nil {
t.Fatal(err)
}
if result != expected {
t.Fatalf("expected %v but got %v", expected, result)
}
}
}
func TestBinaryByteSliceToInt(t *testing.T) {
db := openTestConn(t)
defer db.Close()
expected := 12345678
b := []byte{'\x00', '\xbc', '\x61', '\x4e'}
row := db.QueryRow("SELECT $1::int", b)
var result int
err := row.Scan(&result)
if forceBinaryParameters() {
if err != nil {
t.Fatal(err)
}
if result != expected {
t.Fatalf("expected %v but got %v", expected, result)
}
} else {
pqErr := err.(*Error)
if pqErr == nil {
t.Errorf("Expected to get error")
} else if pqErr.Code != "22021" {
t.Fatalf("Expected to get invalid byte sequence for encoding error (22021), got %s", pqErr.Code)
}
}
}
func TestByteaOutputFormatEncoding(t *testing.T) {
input := []byte("\\x\x00\x01\x02\xFF\xFEabcdefg0123")
want := []byte("\\x5c78000102fffe6162636465666730313233")
got := encode(&parameterStatus{serverVersion: 90000}, input, oid.T_bytea)
if !bytes.Equal(want, got) {
t.Errorf("invalid hex bytea output, got %v but expected %v", got, want)
}
want = []byte("\\\\x\\000\\001\\002\\377\\376abcdefg0123")
got = encode(&parameterStatus{serverVersion: 84000}, input, oid.T_bytea)
if !bytes.Equal(want, got) {
t.Errorf("invalid escape bytea output, got %v but expected %v", got, want)
}
}
func TestByteaOutputFormats(t *testing.T) {
db := openTestConn(t)
defer db.Close()
if getServerVersion(t, db) < 90000 {
// skip
return
}
testByteaOutputFormat := func(f string, usePrepared bool) {
expectedData := []byte("\x5c\x78\x00\xff\x61\x62\x63\x01\x08")
sqlQuery := "SELECT decode('5c7800ff6162630108', 'hex')"
var data []byte
// use a txn to avoid relying on getting the same connection
txn, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer txn.Rollback()
_, err = txn.Exec("SET LOCAL bytea_output TO " + f)
if err != nil {
t.Fatal(err)
}
var rows *sql.Rows
var stmt *sql.Stmt
if usePrepared {
stmt, err = txn.Prepare(sqlQuery)
if err != nil {
t.Fatal(err)
}
rows, err = stmt.Query()
} else {
// use Query; QueryRow would hide the actual error
rows, err = txn.Query(sqlQuery)
}
if err != nil {
t.Fatal(err)
}
if !rows.Next() {
if rows.Err() != nil {
t.Fatal(rows.Err())
}
t.Fatal("shouldn't happen")
}
err = rows.Scan(&data)
if err != nil {
t.Fatal(err)
}
err = rows.Close()
if err != nil {
t.Fatal(err)
}
if stmt != nil {
err = stmt.Close()
if err != nil {
t.Fatal(err)
}
}
if !bytes.Equal(data, expectedData) {
t.Errorf("unexpected bytea value %v for format %s; expected %v", data, f, expectedData)
}
}
testByteaOutputFormat("hex", false)
testByteaOutputFormat("escape", false)
testByteaOutputFormat("hex", true)
testByteaOutputFormat("escape", true)
}
func TestAppendEncodedText(t *testing.T) {
var buf []byte
buf = appendEncodedText(&parameterStatus{serverVersion: 90000}, buf, int64(10))
buf = append(buf, '\t')
buf = appendEncodedText(&parameterStatus{serverVersion: 90000}, buf, 42.0000000001)
buf = append(buf, '\t')
buf = appendEncodedText(&parameterStatus{serverVersion: 90000}, buf, "hello\tworld")
buf = append(buf, '\t')
buf = appendEncodedText(&parameterStatus{serverVersion: 90000}, buf, []byte{0, 128, 255})
if string(buf) != "10\t42.0000000001\thello\\tworld\t\\\\x0080ff" {
t.Fatal(string(buf))
}
}
func TestAppendEscapedText(t *testing.T) {
if esc := appendEscapedText(nil, "hallo\tescape"); string(esc) != "hallo\\tescape" {
t.Fatal(string(esc))
}
if esc := appendEscapedText(nil, "hallo\\tescape\n"); string(esc) != "hallo\\\\tescape\\n" {
t.Fatal(string(esc))
}
if esc := appendEscapedText(nil, "\n\r\t\f"); string(esc) != "\\n\\r\\t\f" {
t.Fatal(string(esc))
}
}
func TestAppendEscapedTextExistingBuffer(t *testing.T) {
var buf []byte
buf = []byte("123\t")
if esc := appendEscapedText(buf, "hallo\tescape"); string(esc) != "123\thallo\\tescape" {
t.Fatal(string(esc))
}
buf = []byte("123\t")
if esc := appendEscapedText(buf, "hallo\\tescape\n"); string(esc) != "123\thallo\\\\tescape\\n" {
t.Fatal(string(esc))
}
buf = []byte("123\t")
if esc := appendEscapedText(buf, "\n\r\t\f"); string(esc) != "123\t\\n\\r\\t\f" {
t.Fatal(string(esc))
}
}
func BenchmarkAppendEscapedText(b *testing.B) {
longString := ""
for i := 0; i < 100; i++ {
longString += "123456789\n"
}
for i := 0; i < b.N; i++ {
appendEscapedText(nil, longString)
}
}
func BenchmarkAppendEscapedTextNoEscape(b *testing.B) {
longString := ""
for i := 0; i < 100; i++ {
longString += "1234567890"
}
for i := 0; i < b.N; i++ {
appendEscapedText(nil, longString)
}
}

508
vendor/src/github.com/lib/pq/error.go vendored Normal file
View File

@ -0,0 +1,508 @@
package pq
import (
"database/sql/driver"
"fmt"
"io"
"net"
"runtime"
)
// Error severities
const (
Efatal = "FATAL"
Epanic = "PANIC"
Ewarning = "WARNING"
Enotice = "NOTICE"
Edebug = "DEBUG"
Einfo = "INFO"
Elog = "LOG"
)
// Error represents an error communicating with the server.
//
// See http://www.postgresql.org/docs/current/static/protocol-error-fields.html for details of the fields
type Error struct {
Severity string
Code ErrorCode
Message string
Detail string
Hint string
Position string
InternalPosition string
InternalQuery string
Where string
Schema string
Table string
Column string
DataTypeName string
Constraint string
File string
Line string
Routine string
}
// ErrorCode is a five-character error code.
type ErrorCode string
// Name returns a more human friendly rendering of the error code, namely the
// "condition name".
//
// See http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html for
// details.
func (ec ErrorCode) Name() string {
return errorCodeNames[ec]
}
// ErrorClass is only the class part of an error code.
type ErrorClass string
// Name returns the condition name of an error class. It is equivalent to the
// condition name of the "standard" error code (i.e. the one having the last
// three characters "000").
func (ec ErrorClass) Name() string {
return errorCodeNames[ErrorCode(ec+"000")]
}
// Class returns the error class, e.g. "28".
//
// See http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html for
// details.
func (ec ErrorCode) Class() ErrorClass {
return ErrorClass(ec[0:2])
}
// errorCodeNames is a mapping between the five-character error codes and the
// human readable "condition names". It is derived from the list at
// http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html
var errorCodeNames = map[ErrorCode]string{
// Class 00 - Successful Completion
"00000": "successful_completion",
// Class 01 - Warning
"01000": "warning",
"0100C": "dynamic_result_sets_returned",
"01008": "implicit_zero_bit_padding",
"01003": "null_value_eliminated_in_set_function",
"01007": "privilege_not_granted",
"01006": "privilege_not_revoked",
"01004": "string_data_right_truncation",
"01P01": "deprecated_feature",
// Class 02 - No Data (this is also a warning class per the SQL standard)
"02000": "no_data",
"02001": "no_additional_dynamic_result_sets_returned",
// Class 03 - SQL Statement Not Yet Complete
"03000": "sql_statement_not_yet_complete",
// Class 08 - Connection Exception
"08000": "connection_exception",
"08003": "connection_does_not_exist",
"08006": "connection_failure",
"08001": "sqlclient_unable_to_establish_sqlconnection",
"08004": "sqlserver_rejected_establishment_of_sqlconnection",
"08007": "transaction_resolution_unknown",
"08P01": "protocol_violation",
// Class 09 - Triggered Action Exception
"09000": "triggered_action_exception",
// Class 0A - Feature Not Supported
"0A000": "feature_not_supported",
// Class 0B - Invalid Transaction Initiation
"0B000": "invalid_transaction_initiation",
// Class 0F - Locator Exception
"0F000": "locator_exception",
"0F001": "invalid_locator_specification",
// Class 0L - Invalid Grantor
"0L000": "invalid_grantor",
"0LP01": "invalid_grant_operation",
// Class 0P - Invalid Role Specification
"0P000": "invalid_role_specification",
// Class 0Z - Diagnostics Exception
"0Z000": "diagnostics_exception",
"0Z002": "stacked_diagnostics_accessed_without_active_handler",
// Class 20 - Case Not Found
"20000": "case_not_found",
// Class 21 - Cardinality Violation
"21000": "cardinality_violation",
// Class 22 - Data Exception
"22000": "data_exception",
"2202E": "array_subscript_error",
"22021": "character_not_in_repertoire",
"22008": "datetime_field_overflow",
"22012": "division_by_zero",
"22005": "error_in_assignment",
"2200B": "escape_character_conflict",
"22022": "indicator_overflow",
"22015": "interval_field_overflow",
"2201E": "invalid_argument_for_logarithm",
"22014": "invalid_argument_for_ntile_function",
"22016": "invalid_argument_for_nth_value_function",
"2201F": "invalid_argument_for_power_function",
"2201G": "invalid_argument_for_width_bucket_function",
"22018": "invalid_character_value_for_cast",
"22007": "invalid_datetime_format",
"22019": "invalid_escape_character",
"2200D": "invalid_escape_octet",
"22025": "invalid_escape_sequence",
"22P06": "nonstandard_use_of_escape_character",
"22010": "invalid_indicator_parameter_value",
"22023": "invalid_parameter_value",
"2201B": "invalid_regular_expression",
"2201W": "invalid_row_count_in_limit_clause",
"2201X": "invalid_row_count_in_result_offset_clause",
"22009": "invalid_time_zone_displacement_value",
"2200C": "invalid_use_of_escape_character",
"2200G": "most_specific_type_mismatch",
"22004": "null_value_not_allowed",
"22002": "null_value_no_indicator_parameter",
"22003": "numeric_value_out_of_range",
"22026": "string_data_length_mismatch",
"22001": "string_data_right_truncation",
"22011": "substring_error",
"22027": "trim_error",
"22024": "unterminated_c_string",
"2200F": "zero_length_character_string",
"22P01": "floating_point_exception",
"22P02": "invalid_text_representation",
"22P03": "invalid_binary_representation",
"22P04": "bad_copy_file_format",
"22P05": "untranslatable_character",
"2200L": "not_an_xml_document",
"2200M": "invalid_xml_document",
"2200N": "invalid_xml_content",
"2200S": "invalid_xml_comment",
"2200T": "invalid_xml_processing_instruction",
// Class 23 - Integrity Constraint Violation
"23000": "integrity_constraint_violation",
"23001": "restrict_violation",
"23502": "not_null_violation",
"23503": "foreign_key_violation",
"23505": "unique_violation",
"23514": "check_violation",
"23P01": "exclusion_violation",
// Class 24 - Invalid Cursor State
"24000": "invalid_cursor_state",
// Class 25 - Invalid Transaction State
"25000": "invalid_transaction_state",
"25001": "active_sql_transaction",
"25002": "branch_transaction_already_active",
"25008": "held_cursor_requires_same_isolation_level",
"25003": "inappropriate_access_mode_for_branch_transaction",
"25004": "inappropriate_isolation_level_for_branch_transaction",
"25005": "no_active_sql_transaction_for_branch_transaction",
"25006": "read_only_sql_transaction",
"25007": "schema_and_data_statement_mixing_not_supported",
"25P01": "no_active_sql_transaction",
"25P02": "in_failed_sql_transaction",
// Class 26 - Invalid SQL Statement Name
"26000": "invalid_sql_statement_name",
// Class 27 - Triggered Data Change Violation
"27000": "triggered_data_change_violation",
// Class 28 - Invalid Authorization Specification
"28000": "invalid_authorization_specification",
"28P01": "invalid_password",
// Class 2B - Dependent Privilege Descriptors Still Exist
"2B000": "dependent_privilege_descriptors_still_exist",
"2BP01": "dependent_objects_still_exist",
// Class 2D - Invalid Transaction Termination
"2D000": "invalid_transaction_termination",
// Class 2F - SQL Routine Exception
"2F000": "sql_routine_exception",
"2F005": "function_executed_no_return_statement",
"2F002": "modifying_sql_data_not_permitted",
"2F003": "prohibited_sql_statement_attempted",
"2F004": "reading_sql_data_not_permitted",
// Class 34 - Invalid Cursor Name
"34000": "invalid_cursor_name",
// Class 38 - External Routine Exception
"38000": "external_routine_exception",
"38001": "containing_sql_not_permitted",
"38002": "modifying_sql_data_not_permitted",
"38003": "prohibited_sql_statement_attempted",
"38004": "reading_sql_data_not_permitted",
// Class 39 - External Routine Invocation Exception
"39000": "external_routine_invocation_exception",
"39001": "invalid_sqlstate_returned",
"39004": "null_value_not_allowed",
"39P01": "trigger_protocol_violated",
"39P02": "srf_protocol_violated",
// Class 3B - Savepoint Exception
"3B000": "savepoint_exception",
"3B001": "invalid_savepoint_specification",
// Class 3D - Invalid Catalog Name
"3D000": "invalid_catalog_name",
// Class 3F - Invalid Schema Name
"3F000": "invalid_schema_name",
// Class 40 - Transaction Rollback
"40000": "transaction_rollback",
"40002": "transaction_integrity_constraint_violation",
"40001": "serialization_failure",
"40003": "statement_completion_unknown",
"40P01": "deadlock_detected",
// Class 42 - Syntax Error or Access Rule Violation
"42000": "syntax_error_or_access_rule_violation",
"42601": "syntax_error",
"42501": "insufficient_privilege",
"42846": "cannot_coerce",
"42803": "grouping_error",
"42P20": "windowing_error",
"42P19": "invalid_recursion",
"42830": "invalid_foreign_key",
"42602": "invalid_name",
"42622": "name_too_long",
"42939": "reserved_name",
"42804": "datatype_mismatch",
"42P18": "indeterminate_datatype",
"42P21": "collation_mismatch",
"42P22": "indeterminate_collation",
"42809": "wrong_object_type",
"42703": "undefined_column",
"42883": "undefined_function",
"42P01": "undefined_table",
"42P02": "undefined_parameter",
"42704": "undefined_object",
"42701": "duplicate_column",
"42P03": "duplicate_cursor",
"42P04": "duplicate_database",
"42723": "duplicate_function",
"42P05": "duplicate_prepared_statement",
"42P06": "duplicate_schema",
"42P07": "duplicate_table",
"42712": "duplicate_alias",
"42710": "duplicate_object",
"42702": "ambiguous_column",
"42725": "ambiguous_function",
"42P08": "ambiguous_parameter",
"42P09": "ambiguous_alias",
"42P10": "invalid_column_reference",
"42611": "invalid_column_definition",
"42P11": "invalid_cursor_definition",
"42P12": "invalid_database_definition",
"42P13": "invalid_function_definition",
"42P14": "invalid_prepared_statement_definition",
"42P15": "invalid_schema_definition",
"42P16": "invalid_table_definition",
"42P17": "invalid_object_definition",
// Class 44 - WITH CHECK OPTION Violation
"44000": "with_check_option_violation",
// Class 53 - Insufficient Resources
"53000": "insufficient_resources",
"53100": "disk_full",
"53200": "out_of_memory",
"53300": "too_many_connections",
"53400": "configuration_limit_exceeded",
// Class 54 - Program Limit Exceeded
"54000": "program_limit_exceeded",
"54001": "statement_too_complex",
"54011": "too_many_columns",
"54023": "too_many_arguments",
// Class 55 - Object Not In Prerequisite State
"55000": "object_not_in_prerequisite_state",
"55006": "object_in_use",
"55P02": "cant_change_runtime_param",
"55P03": "lock_not_available",
// Class 57 - Operator Intervention
"57000": "operator_intervention",
"57014": "query_canceled",
"57P01": "admin_shutdown",
"57P02": "crash_shutdown",
"57P03": "cannot_connect_now",
"57P04": "database_dropped",
// Class 58 - System Error (errors external to PostgreSQL itself)
"58000": "system_error",
"58030": "io_error",
"58P01": "undefined_file",
"58P02": "duplicate_file",
// Class F0 - Configuration File Error
"F0000": "config_file_error",
"F0001": "lock_file_exists",
// Class HV - Foreign Data Wrapper Error (SQL/MED)
"HV000": "fdw_error",
"HV005": "fdw_column_name_not_found",
"HV002": "fdw_dynamic_parameter_value_needed",
"HV010": "fdw_function_sequence_error",
"HV021": "fdw_inconsistent_descriptor_information",
"HV024": "fdw_invalid_attribute_value",
"HV007": "fdw_invalid_column_name",
"HV008": "fdw_invalid_column_number",
"HV004": "fdw_invalid_data_type",
"HV006": "fdw_invalid_data_type_descriptors",
"HV091": "fdw_invalid_descriptor_field_identifier",
"HV00B": "fdw_invalid_handle",
"HV00C": "fdw_invalid_option_index",
"HV00D": "fdw_invalid_option_name",
"HV090": "fdw_invalid_string_length_or_buffer_length",
"HV00A": "fdw_invalid_string_format",
"HV009": "fdw_invalid_use_of_null_pointer",
"HV014": "fdw_too_many_handles",
"HV001": "fdw_out_of_memory",
"HV00P": "fdw_no_schemas",
"HV00J": "fdw_option_name_not_found",
"HV00K": "fdw_reply_handle",
"HV00Q": "fdw_schema_not_found",
"HV00R": "fdw_table_not_found",
"HV00L": "fdw_unable_to_create_execution",
"HV00M": "fdw_unable_to_create_reply",
"HV00N": "fdw_unable_to_establish_connection",
// Class P0 - PL/pgSQL Error
"P0000": "plpgsql_error",
"P0001": "raise_exception",
"P0002": "no_data_found",
"P0003": "too_many_rows",
// Class XX - Internal Error
"XX000": "internal_error",
"XX001": "data_corrupted",
"XX002": "index_corrupted",
}
func parseError(r *readBuf) *Error {
err := new(Error)
for t := r.byte(); t != 0; t = r.byte() {
msg := r.string()
switch t {
case 'S':
err.Severity = msg
case 'C':
err.Code = ErrorCode(msg)
case 'M':
err.Message = msg
case 'D':
err.Detail = msg
case 'H':
err.Hint = msg
case 'P':
err.Position = msg
case 'p':
err.InternalPosition = msg
case 'q':
err.InternalQuery = msg
case 'W':
err.Where = msg
case 's':
err.Schema = msg
case 't':
err.Table = msg
case 'c':
err.Column = msg
case 'd':
err.DataTypeName = msg
case 'n':
err.Constraint = msg
case 'F':
err.File = msg
case 'L':
err.Line = msg
case 'R':
err.Routine = msg
}
}
return err
}
// Fatal returns true if the Error Severity is fatal.
func (err *Error) Fatal() bool {
return err.Severity == Efatal
}
// Get implements the legacy PGError interface. New code should use the fields
// of the Error struct directly.
func (err *Error) Get(k byte) (v string) {
switch k {
case 'S':
return err.Severity
case 'C':
return string(err.Code)
case 'M':
return err.Message
case 'D':
return err.Detail
case 'H':
return err.Hint
case 'P':
return err.Position
case 'p':
return err.InternalPosition
case 'q':
return err.InternalQuery
case 'W':
return err.Where
case 's':
return err.Schema
case 't':
return err.Table
case 'c':
return err.Column
case 'd':
return err.DataTypeName
case 'n':
return err.Constraint
case 'F':
return err.File
case 'L':
return err.Line
case 'R':
return err.Routine
}
return ""
}
func (err Error) Error() string {
return "pq: " + err.Message
}
// PGError is an interface used by previous versions of pq. It is provided
// only to support legacy code. New code should use the Error type.
type PGError interface {
Error() string
Fatal() bool
Get(k byte) (v string)
}
func errorf(s string, args ...interface{}) {
panic(fmt.Errorf("pq: %s", fmt.Sprintf(s, args...)))
}
func errRecoverNoErrBadConn(err *error) {
e := recover()
if e == nil {
// Do nothing
return
}
var ok bool
*err, ok = e.(error)
if !ok {
*err = fmt.Errorf("pq: unexpected error: %#v", e)
}
}
func (c *conn) errRecover(err *error) {
e := recover()
switch v := e.(type) {
case nil:
// Do nothing
case runtime.Error:
c.bad = true
panic(v)
case *Error:
if v.Fatal() {
*err = driver.ErrBadConn
} else {
*err = v
}
case *net.OpError:
*err = driver.ErrBadConn
case error:
if v == io.EOF || v.(error).Error() == "remote error: handshake failure" {
*err = driver.ErrBadConn
} else {
*err = v
}
default:
c.bad = true
panic(fmt.Sprintf("unknown error: %#v", e))
}
// Any time we return ErrBadConn, we need to remember it since *Tx doesn't
// mark the connection bad in database/sql.
if *err == driver.ErrBadConn {
c.bad = true
}
}

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package hstore
import (
"database/sql"
"database/sql/driver"
"strings"
)
// A wrapper for transferring Hstore values back and forth easily.
type Hstore struct {
Map map[string]sql.NullString
}
// escapes and quotes hstore keys/values
// s should be a sql.NullString or string
func hQuote(s interface{}) string {
var str string
switch v := s.(type) {
case sql.NullString:
if !v.Valid {
return "NULL"
}
str = v.String
case string:
str = v
default:
panic("not a string or sql.NullString")
}
str = strings.Replace(str, "\\", "\\\\", -1)
return `"` + strings.Replace(str, "\"", "\\\"", -1) + `"`
}
// Scan implements the Scanner interface.
//
// Note h.Map is reallocated before the scan to clear existing values. If the
// hstore column's database value is NULL, then h.Map is set to nil instead.
func (h *Hstore) Scan(value interface{}) error {
if value == nil {
h.Map = nil
return nil
}
h.Map = make(map[string]sql.NullString)
var b byte
pair := [][]byte{{}, {}}
pi := 0
inQuote := false
didQuote := false
sawSlash := false
bindex := 0
for bindex, b = range value.([]byte) {
if sawSlash {
pair[pi] = append(pair[pi], b)
sawSlash = false
continue
}
switch b {
case '\\':
sawSlash = true
continue
case '"':
inQuote = !inQuote
if !didQuote {
didQuote = true
}
continue
default:
if !inQuote {
switch b {
case ' ', '\t', '\n', '\r':
continue
case '=':
continue
case '>':
pi = 1
didQuote = false
continue
case ',':
s := string(pair[1])
if !didQuote && len(s) == 4 && strings.ToLower(s) == "null" {
h.Map[string(pair[0])] = sql.NullString{String: "", Valid: false}
} else {
h.Map[string(pair[0])] = sql.NullString{String: string(pair[1]), Valid: true}
}
pair[0] = []byte{}
pair[1] = []byte{}
pi = 0
continue
}
}
}
pair[pi] = append(pair[pi], b)
}
if bindex > 0 {
s := string(pair[1])
if !didQuote && len(s) == 4 && strings.ToLower(s) == "null" {
h.Map[string(pair[0])] = sql.NullString{String: "", Valid: false}
} else {
h.Map[string(pair[0])] = sql.NullString{String: string(pair[1]), Valid: true}
}
}
return nil
}
// Value implements the driver Valuer interface. Note if h.Map is nil, the
// database column value will be set to NULL.
func (h Hstore) Value() (driver.Value, error) {
if h.Map == nil {
return nil, nil
}
parts := []string{}
for key, val := range h.Map {
thispart := hQuote(key) + "=>" + hQuote(val)
parts = append(parts, thispart)
}
return []byte(strings.Join(parts, ",")), nil
}

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package hstore
import (
"database/sql"
"os"
"testing"
_ "github.com/lib/pq"
)
type Fatalistic interface {
Fatal(args ...interface{})
}
func openTestConn(t Fatalistic) *sql.DB {
datname := os.Getenv("PGDATABASE")
sslmode := os.Getenv("PGSSLMODE")
if datname == "" {
os.Setenv("PGDATABASE", "pqgotest")
}
if sslmode == "" {
os.Setenv("PGSSLMODE", "disable")
}
conn, err := sql.Open("postgres", "")
if err != nil {
t.Fatal(err)
}
return conn
}
func TestHstore(t *testing.T) {
db := openTestConn(t)
defer db.Close()
// quitely create hstore if it doesn't exist
_, err := db.Exec("CREATE EXTENSION IF NOT EXISTS hstore")
if err != nil {
t.Skipf("Skipping hstore tests - hstore extension create failed: %s", err.Error())
}
hs := Hstore{}
// test for null-valued hstores
err = db.QueryRow("SELECT NULL::hstore").Scan(&hs)
if err != nil {
t.Fatal(err)
}
if hs.Map != nil {
t.Fatalf("expected null map")
}
err = db.QueryRow("SELECT $1::hstore", hs).Scan(&hs)
if err != nil {
t.Fatalf("re-query null map failed: %s", err.Error())
}
if hs.Map != nil {
t.Fatalf("expected null map")
}
// test for empty hstores
err = db.QueryRow("SELECT ''::hstore").Scan(&hs)
if err != nil {
t.Fatal(err)
}
if hs.Map == nil {
t.Fatalf("expected empty map, got null map")
}
if len(hs.Map) != 0 {
t.Fatalf("expected empty map, got len(map)=%d", len(hs.Map))
}
err = db.QueryRow("SELECT $1::hstore", hs).Scan(&hs)
if err != nil {
t.Fatalf("re-query empty map failed: %s", err.Error())
}
if hs.Map == nil {
t.Fatalf("expected empty map, got null map")
}
if len(hs.Map) != 0 {
t.Fatalf("expected empty map, got len(map)=%d", len(hs.Map))
}
// a few example maps to test out
hsOnePair := Hstore{
Map: map[string]sql.NullString{
"key1": {"value1", true},
},
}
hsThreePairs := Hstore{
Map: map[string]sql.NullString{
"key1": {"value1", true},
"key2": {"value2", true},
"key3": {"value3", true},
},
}
hsSmorgasbord := Hstore{
Map: map[string]sql.NullString{
"nullstring": {"NULL", true},
"actuallynull": {"", false},
"NULL": {"NULL string key", true},
"withbracket": {"value>42", true},
"withequal": {"value=42", true},
`"withquotes1"`: {`this "should" be fine`, true},
`"withquotes"2"`: {`this "should\" also be fine`, true},
"embedded1": {"value1=>x1", true},
"embedded2": {`"value2"=>x2`, true},
"withnewlines": {"\n\nvalue\t=>2", true},
"<<all sorts of crazy>>": {`this, "should,\" also, => be fine`, true},
},
}
// test encoding in query params, then decoding during Scan
testBidirectional := func(h Hstore) {
err = db.QueryRow("SELECT $1::hstore", h).Scan(&hs)
if err != nil {
t.Fatalf("re-query %d-pair map failed: %s", len(h.Map), err.Error())
}
if hs.Map == nil {
t.Fatalf("expected %d-pair map, got null map", len(h.Map))
}
if len(hs.Map) != len(h.Map) {
t.Fatalf("expected %d-pair map, got len(map)=%d", len(h.Map), len(hs.Map))
}
for key, val := range hs.Map {
otherval, found := h.Map[key]
if !found {
t.Fatalf(" key '%v' not found in %d-pair map", key, len(h.Map))
}
if otherval.Valid != val.Valid {
t.Fatalf(" value %v <> %v in %d-pair map", otherval, val, len(h.Map))
}
if otherval.String != val.String {
t.Fatalf(" value '%v' <> '%v' in %d-pair map", otherval.String, val.String, len(h.Map))
}
}
}
testBidirectional(hsOnePair)
testBidirectional(hsThreePairs)
testBidirectional(hsSmorgasbord)
}

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/*
Below you will find a self-contained Go program which uses the LISTEN / NOTIFY
mechanism to avoid polling the database while waiting for more work to arrive.
//
// You can see the program in action by defining a function similar to
// the following:
//
// CREATE OR REPLACE FUNCTION public.get_work()
// RETURNS bigint
// LANGUAGE sql
// AS $$
// SELECT CASE WHEN random() >= 0.2 THEN int8 '1' END
// $$
// ;
package main
import (
"database/sql"
"fmt"
"time"
"github.com/lib/pq"
)
func doWork(db *sql.DB, work int64) {
// work here
}
func getWork(db *sql.DB) {
for {
// get work from the database here
var work sql.NullInt64
err := db.QueryRow("SELECT get_work()").Scan(&work)
if err != nil {
fmt.Println("call to get_work() failed: ", err)
time.Sleep(10 * time.Second)
continue
}
if !work.Valid {
// no more work to do
fmt.Println("ran out of work")
return
}
fmt.Println("starting work on ", work.Int64)
go doWork(db, work.Int64)
}
}
func waitForNotification(l *pq.Listener) {
for {
select {
case <-l.Notify:
fmt.Println("received notification, new work available")
return
case <-time.After(90 * time.Second):
go func() {
l.Ping()
}()
// Check if there's more work available, just in case it takes
// a while for the Listener to notice connection loss and
// reconnect.
fmt.Println("received no work for 90 seconds, checking for new work")
return
}
}
}
func main() {
var conninfo string = ""
db, err := sql.Open("postgres", conninfo)
if err != nil {
panic(err)
}
reportProblem := func(ev pq.ListenerEventType, err error) {
if err != nil {
fmt.Println(err.Error())
}
}
listener := pq.NewListener(conninfo, 10 * time.Second, time.Minute, reportProblem)
err = listener.Listen("getwork")
if err != nil {
panic(err)
}
fmt.Println("entering main loop")
for {
// process all available work before waiting for notifications
getWork(db)
waitForNotification(listener)
}
}
*/
package listen_example

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package pq
// Package pq is a pure Go Postgres driver for the database/sql package.
// This module contains support for Postgres LISTEN/NOTIFY.
import (
"errors"
"fmt"
"sync"
"sync/atomic"
"time"
)
// Notification represents a single notification from the database.
type Notification struct {
// Process ID (PID) of the notifying postgres backend.
BePid int
// Name of the channel the notification was sent on.
Channel string
// Payload, or the empty string if unspecified.
Extra string
}
func recvNotification(r *readBuf) *Notification {
bePid := r.int32()
channel := r.string()
extra := r.string()
return &Notification{bePid, channel, extra}
}
const (
connStateIdle int32 = iota
connStateExpectResponse
connStateExpectReadyForQuery
)
type message struct {
typ byte
err error
}
var errListenerConnClosed = errors.New("pq: ListenerConn has been closed")
// ListenerConn is a low-level interface for waiting for notifications. You
// should use Listener instead.
type ListenerConn struct {
// guards cn and err
connectionLock sync.Mutex
cn *conn
err error
connState int32
// the sending goroutine will be holding this lock
senderLock sync.Mutex
notificationChan chan<- *Notification
replyChan chan message
}
// Creates a new ListenerConn. Use NewListener instead.
func NewListenerConn(name string, notificationChan chan<- *Notification) (*ListenerConn, error) {
cn, err := Open(name)
if err != nil {
return nil, err
}
l := &ListenerConn{
cn: cn.(*conn),
notificationChan: notificationChan,
connState: connStateIdle,
replyChan: make(chan message, 2),
}
go l.listenerConnMain()
return l, nil
}
// We can only allow one goroutine at a time to be running a query on the
// connection for various reasons, so the goroutine sending on the connection
// must be holding senderLock.
//
// Returns an error if an unrecoverable error has occurred and the ListenerConn
// should be abandoned.
func (l *ListenerConn) acquireSenderLock() error {
// we must acquire senderLock first to avoid deadlocks; see ExecSimpleQuery
l.senderLock.Lock()
l.connectionLock.Lock()
err := l.err
l.connectionLock.Unlock()
if err != nil {
l.senderLock.Unlock()
return err
}
return nil
}
func (l *ListenerConn) releaseSenderLock() {
l.senderLock.Unlock()
}
// setState advances the protocol state to newState. Returns false if moving
// to that state from the current state is not allowed.
func (l *ListenerConn) setState(newState int32) bool {
var expectedState int32
switch newState {
case connStateIdle:
expectedState = connStateExpectReadyForQuery
case connStateExpectResponse:
expectedState = connStateIdle
case connStateExpectReadyForQuery:
expectedState = connStateExpectResponse
default:
panic(fmt.Sprintf("unexpected listenerConnState %d", newState))
}
return atomic.CompareAndSwapInt32(&l.connState, expectedState, newState)
}
// Main logic is here: receive messages from the postgres backend, forward
// notifications and query replies and keep the internal state in sync with the
// protocol state. Returns when the connection has been lost, is about to go
// away or should be discarded because we couldn't agree on the state with the
// server backend.
func (l *ListenerConn) listenerConnLoop() (err error) {
defer errRecoverNoErrBadConn(&err)
r := &readBuf{}
for {
t, err := l.cn.recvMessage(r)
if err != nil {
return err
}
switch t {
case 'A':
// recvNotification copies all the data so we don't need to worry
// about the scratch buffer being overwritten.
l.notificationChan <- recvNotification(r)
case 'T', 'D':
// only used by tests; ignore
case 'E':
// We might receive an ErrorResponse even when not in a query; it
// is expected that the server will close the connection after
// that, but we should make sure that the error we display is the
// one from the stray ErrorResponse, not io.ErrUnexpectedEOF.
if !l.setState(connStateExpectReadyForQuery) {
return parseError(r)
}
l.replyChan <- message{t, parseError(r)}
case 'C', 'I':
if !l.setState(connStateExpectReadyForQuery) {
// protocol out of sync
return fmt.Errorf("unexpected CommandComplete")
}
// ExecSimpleQuery doesn't need to know about this message
case 'Z':
if !l.setState(connStateIdle) {
// protocol out of sync
return fmt.Errorf("unexpected ReadyForQuery")
}
l.replyChan <- message{t, nil}
case 'N', 'S':
// ignore
default:
return fmt.Errorf("unexpected message %q from server in listenerConnLoop", t)
}
}
}
// This is the main routine for the goroutine receiving on the database
// connection. Most of the main logic is in listenerConnLoop.
func (l *ListenerConn) listenerConnMain() {
err := l.listenerConnLoop()
// listenerConnLoop terminated; we're done, but we still have to clean up.
// Make sure nobody tries to start any new queries by making sure the err
// pointer is set. It is important that we do not overwrite its value; a
// connection could be closed by either this goroutine or one sending on
// the connection -- whoever closes the connection is assumed to have the
// more meaningful error message (as the other one will probably get
// net.errClosed), so that goroutine sets the error we expose while the
// other error is discarded. If the connection is lost while two
// goroutines are operating on the socket, it probably doesn't matter which
// error we expose so we don't try to do anything more complex.
l.connectionLock.Lock()
if l.err == nil {
l.err = err
}
l.cn.Close()
l.connectionLock.Unlock()
// There might be a query in-flight; make sure nobody's waiting for a
// response to it, since there's not going to be one.
close(l.replyChan)
// let the listener know we're done
close(l.notificationChan)
// this ListenerConn is done
}
// Send a LISTEN query to the server. See ExecSimpleQuery.
func (l *ListenerConn) Listen(channel string) (bool, error) {
return l.ExecSimpleQuery("LISTEN " + QuoteIdentifier(channel))
}
// Send an UNLISTEN query to the server. See ExecSimpleQuery.
func (l *ListenerConn) Unlisten(channel string) (bool, error) {
return l.ExecSimpleQuery("UNLISTEN " + QuoteIdentifier(channel))
}
// Send `UNLISTEN *` to the server. See ExecSimpleQuery.
func (l *ListenerConn) UnlistenAll() (bool, error) {
return l.ExecSimpleQuery("UNLISTEN *")
}
// Ping the remote server to make sure it's alive. Non-nil error means the
// connection has failed and should be abandoned.
func (l *ListenerConn) Ping() error {
sent, err := l.ExecSimpleQuery("")
if !sent {
return err
}
if err != nil {
// shouldn't happen
panic(err)
}
return nil
}
// Attempt to send a query on the connection. Returns an error if sending the
// query failed, and the caller should initiate closure of this connection.
// The caller must be holding senderLock (see acquireSenderLock and
// releaseSenderLock).
func (l *ListenerConn) sendSimpleQuery(q string) (err error) {
defer errRecoverNoErrBadConn(&err)
// must set connection state before sending the query
if !l.setState(connStateExpectResponse) {
panic("two queries running at the same time")
}
// Can't use l.cn.writeBuf here because it uses the scratch buffer which
// might get overwritten by listenerConnLoop.
b := &writeBuf{
buf: []byte("Q\x00\x00\x00\x00"),
pos: 1,
}
b.string(q)
l.cn.send(b)
return nil
}
// Execute a "simple query" (i.e. one with no bindable parameters) on the
// connection. The possible return values are:
// 1) "executed" is true; the query was executed to completion on the
// database server. If the query failed, err will be set to the error
// returned by the database, otherwise err will be nil.
// 2) If "executed" is false, the query could not be executed on the remote
// server. err will be non-nil.
//
// After a call to ExecSimpleQuery has returned an executed=false value, the
// connection has either been closed or will be closed shortly thereafter, and
// all subsequently executed queries will return an error.
func (l *ListenerConn) ExecSimpleQuery(q string) (executed bool, err error) {
if err = l.acquireSenderLock(); err != nil {
return false, err
}
defer l.releaseSenderLock()
err = l.sendSimpleQuery(q)
if err != nil {
// We can't know what state the protocol is in, so we need to abandon
// this connection.
l.connectionLock.Lock()
// Set the error pointer if it hasn't been set already; see
// listenerConnMain.
if l.err == nil {
l.err = err
}
l.connectionLock.Unlock()
l.cn.c.Close()
return false, err
}
// now we just wait for a reply..
for {
m, ok := <-l.replyChan
if !ok {
// We lost the connection to server, don't bother waiting for a
// a response. err should have been set already.
l.connectionLock.Lock()
err := l.err
l.connectionLock.Unlock()
return false, err
}
switch m.typ {
case 'Z':
// sanity check
if m.err != nil {
panic("m.err != nil")
}
// done; err might or might not be set
return true, err
case 'E':
// sanity check
if m.err == nil {
panic("m.err == nil")
}
// server responded with an error; ReadyForQuery to follow
err = m.err
default:
return false, fmt.Errorf("unknown response for simple query: %q", m.typ)
}
}
}
func (l *ListenerConn) Close() error {
l.connectionLock.Lock()
if l.err != nil {
l.connectionLock.Unlock()
return errListenerConnClosed
}
l.err = errListenerConnClosed
l.connectionLock.Unlock()
// We can't send anything on the connection without holding senderLock.
// Simply close the net.Conn to wake up everyone operating on it.
return l.cn.c.Close()
}
// Err() returns the reason the connection was closed. It is not safe to call
// this function until l.Notify has been closed.
func (l *ListenerConn) Err() error {
return l.err
}
var errListenerClosed = errors.New("pq: Listener has been closed")
var ErrChannelAlreadyOpen = errors.New("pq: channel is already open")
var ErrChannelNotOpen = errors.New("pq: channel is not open")
type ListenerEventType int
const (
// Emitted only when the database connection has been initially
// initialized. err will always be nil.
ListenerEventConnected ListenerEventType = iota
// Emitted after a database connection has been lost, either because of an
// error or because Close has been called. err will be set to the reason
// the database connection was lost.
ListenerEventDisconnected
// Emitted after a database connection has been re-established after
// connection loss. err will always be nil. After this event has been
// emitted, a nil pq.Notification is sent on the Listener.Notify channel.
ListenerEventReconnected
// Emitted after a connection to the database was attempted, but failed.
// err will be set to an error describing why the connection attempt did
// not succeed.
ListenerEventConnectionAttemptFailed
)
type EventCallbackType func(event ListenerEventType, err error)
// Listener provides an interface for listening to notifications from a
// PostgreSQL database. For general usage information, see section
// "Notifications".
//
// Listener can safely be used from concurrently running goroutines.
type Listener struct {
// Channel for receiving notifications from the database. In some cases a
// nil value will be sent. See section "Notifications" above.
Notify chan *Notification
name string
minReconnectInterval time.Duration
maxReconnectInterval time.Duration
eventCallback EventCallbackType
lock sync.Mutex
isClosed bool
reconnectCond *sync.Cond
cn *ListenerConn
connNotificationChan <-chan *Notification
channels map[string]struct{}
}
// NewListener creates a new database connection dedicated to LISTEN / NOTIFY.
//
// name should be set to a connection string to be used to establish the
// database connection (see section "Connection String Parameters" above).
//
// minReconnectInterval controls the duration to wait before trying to
// re-establish the database connection after connection loss. After each
// consecutive failure this interval is doubled, until maxReconnectInterval is
// reached. Successfully completing the connection establishment procedure
// resets the interval back to minReconnectInterval.
//
// The last parameter eventCallback can be set to a function which will be
// called by the Listener when the state of the underlying database connection
// changes. This callback will be called by the goroutine which dispatches the
// notifications over the Notify channel, so you should try to avoid doing
// potentially time-consuming operations from the callback.
func NewListener(name string,
minReconnectInterval time.Duration,
maxReconnectInterval time.Duration,
eventCallback EventCallbackType) *Listener {
l := &Listener{
name: name,
minReconnectInterval: minReconnectInterval,
maxReconnectInterval: maxReconnectInterval,
eventCallback: eventCallback,
channels: make(map[string]struct{}),
Notify: make(chan *Notification, 32),
}
l.reconnectCond = sync.NewCond(&l.lock)
go l.listenerMain()
return l
}
// Returns the notification channel for this listener. This is the same
// channel as Notify, and will not be recreated during the life time of the
// Listener.
func (l *Listener) NotificationChannel() <-chan *Notification {
return l.Notify
}
// Listen starts listening for notifications on a channel. Calls to this
// function will block until an acknowledgement has been received from the
// server. Note that Listener automatically re-establishes the connection
// after connection loss, so this function may block indefinitely if the
// connection can not be re-established.
//
// Listen will only fail in three conditions:
// 1) The channel is already open. The returned error will be
// ErrChannelAlreadyOpen.
// 2) The query was executed on the remote server, but PostgreSQL returned an
// error message in response to the query. The returned error will be a
// pq.Error containing the information the server supplied.
// 3) Close is called on the Listener before the request could be completed.
//
// The channel name is case-sensitive.
func (l *Listener) Listen(channel string) error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
// The server allows you to issue a LISTEN on a channel which is already
// open, but it seems useful to be able to detect this case to spot for
// mistakes in application logic. If the application genuinely does't
// care, it can check the exported error and ignore it.
_, exists := l.channels[channel]
if exists {
return ErrChannelAlreadyOpen
}
if l.cn != nil {
// If gotResponse is true but error is set, the query was executed on
// the remote server, but resulted in an error. This should be
// relatively rare, so it's fine if we just pass the error to our
// caller. However, if gotResponse is false, we could not complete the
// query on the remote server and our underlying connection is about
// to go away, so we only add relname to l.channels, and wait for
// resync() to take care of the rest.
gotResponse, err := l.cn.Listen(channel)
if gotResponse && err != nil {
return err
}
}
l.channels[channel] = struct{}{}
for l.cn == nil {
l.reconnectCond.Wait()
// we let go of the mutex for a while
if l.isClosed {
return errListenerClosed
}
}
return nil
}
// Unlisten removes a channel from the Listener's channel list. Returns
// ErrChannelNotOpen if the Listener is not listening on the specified channel.
// Returns immediately with no error if there is no connection. Note that you
// might still get notifications for this channel even after Unlisten has
// returned.
//
// The channel name is case-sensitive.
func (l *Listener) Unlisten(channel string) error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
// Similarly to LISTEN, this is not an error in Postgres, but it seems
// useful to distinguish from the normal conditions.
_, exists := l.channels[channel]
if !exists {
return ErrChannelNotOpen
}
if l.cn != nil {
// Similarly to Listen (see comment in that function), the caller
// should only be bothered with an error if it came from the backend as
// a response to our query.
gotResponse, err := l.cn.Unlisten(channel)
if gotResponse && err != nil {
return err
}
}
// Don't bother waiting for resync if there's no connection.
delete(l.channels, channel)
return nil
}
// UnlistenAll removes all channels from the Listener's channel list. Returns
// immediately with no error if there is no connection. Note that you might
// still get notifications for any of the deleted channels even after
// UnlistenAll has returned.
func (l *Listener) UnlistenAll() error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
if l.cn != nil {
// Similarly to Listen (see comment in that function), the caller
// should only be bothered with an error if it came from the backend as
// a response to our query.
gotResponse, err := l.cn.UnlistenAll()
if gotResponse && err != nil {
return err
}
}
// Don't bother waiting for resync if there's no connection.
l.channels = make(map[string]struct{})
return nil
}
// Ping the remote server to make sure it's alive. Non-nil return value means
// that there is no active connection.
func (l *Listener) Ping() error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
if l.cn == nil {
return errors.New("no connection")
}
return l.cn.Ping()
}
// Clean up after losing the server connection. Returns l.cn.Err(), which
// should have the reason the connection was lost.
func (l *Listener) disconnectCleanup() error {
l.lock.Lock()
defer l.lock.Unlock()
// sanity check; can't look at Err() until the channel has been closed
select {
case _, ok := <-l.connNotificationChan:
if ok {
panic("connNotificationChan not closed")
}
default:
panic("connNotificationChan not closed")
}
err := l.cn.Err()
l.cn.Close()
l.cn = nil
return err
}
// Synchronize the list of channels we want to be listening on with the server
// after the connection has been established.
func (l *Listener) resync(cn *ListenerConn, notificationChan <-chan *Notification) error {
doneChan := make(chan error)
go func() {
for channel := range l.channels {
// If we got a response, return that error to our caller as it's
// going to be more descriptive than cn.Err().
gotResponse, err := cn.Listen(channel)
if gotResponse && err != nil {
doneChan <- err
return
}
// If we couldn't reach the server, wait for notificationChan to
// close and then return the error message from the connection, as
// per ListenerConn's interface.
if err != nil {
for _ = range notificationChan {
}
doneChan <- cn.Err()
return
}
}
doneChan <- nil
}()
// Ignore notifications while synchronization is going on to avoid
// deadlocks. We have to send a nil notification over Notify anyway as
// we can't possibly know which notifications (if any) were lost while
// the connection was down, so there's no reason to try and process
// these messages at all.
for {
select {
case _, ok := <-notificationChan:
if !ok {
notificationChan = nil
}
case err := <-doneChan:
return err
}
}
}
// caller should NOT be holding l.lock
func (l *Listener) closed() bool {
l.lock.Lock()
defer l.lock.Unlock()
return l.isClosed
}
func (l *Listener) connect() error {
notificationChan := make(chan *Notification, 32)
cn, err := NewListenerConn(l.name, notificationChan)
if err != nil {
return err
}
l.lock.Lock()
defer l.lock.Unlock()
err = l.resync(cn, notificationChan)
if err != nil {
cn.Close()
return err
}
l.cn = cn
l.connNotificationChan = notificationChan
l.reconnectCond.Broadcast()
return nil
}
// Close disconnects the Listener from the database and shuts it down.
// Subsequent calls to its methods will return an error. Close returns an
// error if the connection has already been closed.
func (l *Listener) Close() error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
if l.cn != nil {
l.cn.Close()
}
l.isClosed = true
return nil
}
func (l *Listener) emitEvent(event ListenerEventType, err error) {
if l.eventCallback != nil {
l.eventCallback(event, err)
}
}
// Main logic here: maintain a connection to the server when possible, wait
// for notifications and emit events.
func (l *Listener) listenerConnLoop() {
var nextReconnect time.Time
reconnectInterval := l.minReconnectInterval
for {
for {
err := l.connect()
if err == nil {
break
}
if l.closed() {
return
}
l.emitEvent(ListenerEventConnectionAttemptFailed, err)
time.Sleep(reconnectInterval)
reconnectInterval *= 2
if reconnectInterval > l.maxReconnectInterval {
reconnectInterval = l.maxReconnectInterval
}
}
if nextReconnect.IsZero() {
l.emitEvent(ListenerEventConnected, nil)
} else {
l.emitEvent(ListenerEventReconnected, nil)
l.Notify <- nil
}
reconnectInterval = l.minReconnectInterval
nextReconnect = time.Now().Add(reconnectInterval)
for {
notification, ok := <-l.connNotificationChan
if !ok {
// lost connection, loop again
break
}
l.Notify <- notification
}
err := l.disconnectCleanup()
if l.closed() {
return
}
l.emitEvent(ListenerEventDisconnected, err)
time.Sleep(nextReconnect.Sub(time.Now()))
}
}
func (l *Listener) listenerMain() {
l.listenerConnLoop()
close(l.Notify)
}

574
vendor/src/github.com/lib/pq/notify_test.go vendored Normal file
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@ -0,0 +1,574 @@
package pq
import (
"errors"
"fmt"
"io"
"os"
"runtime"
"sync"
"sync/atomic"
"testing"
"time"
)
var errNilNotification = errors.New("nil notification")
func expectNotification(t *testing.T, ch <-chan *Notification, relname string, extra string) error {
select {
case n := <-ch:
if n == nil {
return errNilNotification
}
if n.Channel != relname || n.Extra != extra {
return fmt.Errorf("unexpected notification %v", n)
}
return nil
case <-time.After(1500 * time.Millisecond):
return fmt.Errorf("timeout")
}
}
func expectNoNotification(t *testing.T, ch <-chan *Notification) error {
select {
case n := <-ch:
return fmt.Errorf("unexpected notification %v", n)
case <-time.After(100 * time.Millisecond):
return nil
}
}
func expectEvent(t *testing.T, eventch <-chan ListenerEventType, et ListenerEventType) error {
select {
case e := <-eventch:
if e != et {
return fmt.Errorf("unexpected event %v", e)
}
return nil
case <-time.After(1500 * time.Millisecond):
panic("expectEvent timeout")
}
}
func expectNoEvent(t *testing.T, eventch <-chan ListenerEventType) error {
select {
case e := <-eventch:
return fmt.Errorf("unexpected event %v", e)
case <-time.After(100 * time.Millisecond):
return nil
}
}
func newTestListenerConn(t *testing.T) (*ListenerConn, <-chan *Notification) {
datname := os.Getenv("PGDATABASE")
sslmode := os.Getenv("PGSSLMODE")
if datname == "" {
os.Setenv("PGDATABASE", "pqgotest")
}
if sslmode == "" {
os.Setenv("PGSSLMODE", "disable")
}
notificationChan := make(chan *Notification)
l, err := NewListenerConn("", notificationChan)
if err != nil {
t.Fatal(err)
}
return l, notificationChan
}
func TestNewListenerConn(t *testing.T) {
l, _ := newTestListenerConn(t)
defer l.Close()
}
func TestConnListen(t *testing.T) {
l, channel := newTestListenerConn(t)
defer l.Close()
db := openTestConn(t)
defer db.Close()
ok, err := l.Listen("notify_test")
if !ok || err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_test")
if err != nil {
t.Fatal(err)
}
err = expectNotification(t, channel, "notify_test", "")
if err != nil {
t.Fatal(err)
}
}
func TestConnUnlisten(t *testing.T) {
l, channel := newTestListenerConn(t)
defer l.Close()
db := openTestConn(t)
defer db.Close()
ok, err := l.Listen("notify_test")
if !ok || err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_test")
err = expectNotification(t, channel, "notify_test", "")
if err != nil {
t.Fatal(err)
}
ok, err = l.Unlisten("notify_test")
if !ok || err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_test")
if err != nil {
t.Fatal(err)
}
err = expectNoNotification(t, channel)
if err != nil {
t.Fatal(err)
}
}
func TestConnUnlistenAll(t *testing.T) {
l, channel := newTestListenerConn(t)
defer l.Close()
db := openTestConn(t)
defer db.Close()
ok, err := l.Listen("notify_test")
if !ok || err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_test")
err = expectNotification(t, channel, "notify_test", "")
if err != nil {
t.Fatal(err)
}
ok, err = l.UnlistenAll()
if !ok || err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_test")
if err != nil {
t.Fatal(err)
}
err = expectNoNotification(t, channel)
if err != nil {
t.Fatal(err)
}
}
func TestConnClose(t *testing.T) {
l, _ := newTestListenerConn(t)
defer l.Close()
err := l.Close()
if err != nil {
t.Fatal(err)
}
err = l.Close()
if err != errListenerConnClosed {
t.Fatalf("expected errListenerConnClosed; got %v", err)
}
}
func TestConnPing(t *testing.T) {
l, _ := newTestListenerConn(t)
defer l.Close()
err := l.Ping()
if err != nil {
t.Fatal(err)
}
err = l.Close()
if err != nil {
t.Fatal(err)
}
err = l.Ping()
if err != errListenerConnClosed {
t.Fatalf("expected errListenerConnClosed; got %v", err)
}
}
// Test for deadlock where a query fails while another one is queued
func TestConnExecDeadlock(t *testing.T) {
l, _ := newTestListenerConn(t)
defer l.Close()
var wg sync.WaitGroup
wg.Add(2)
go func() {
l.ExecSimpleQuery("SELECT pg_sleep(60)")
wg.Done()
}()
runtime.Gosched()
go func() {
l.ExecSimpleQuery("SELECT 1")
wg.Done()
}()
// give the two goroutines some time to get into position
runtime.Gosched()
// calls Close on the net.Conn; equivalent to a network failure
l.Close()
var done int32 = 0
go func() {
time.Sleep(10 * time.Second)
if atomic.LoadInt32(&done) != 1 {
panic("timed out")
}
}()
wg.Wait()
atomic.StoreInt32(&done, 1)
}
// Test for ListenerConn being closed while a slow query is executing
func TestListenerConnCloseWhileQueryIsExecuting(t *testing.T) {
l, _ := newTestListenerConn(t)
defer l.Close()
var wg sync.WaitGroup
wg.Add(1)
go func() {
sent, err := l.ExecSimpleQuery("SELECT pg_sleep(60)")
if sent {
panic("expected sent=false")
}
// could be any of a number of errors
if err == nil {
panic("expected error")
}
wg.Done()
}()
// give the above goroutine some time to get into position
runtime.Gosched()
err := l.Close()
if err != nil {
t.Fatal(err)
}
var done int32 = 0
go func() {
time.Sleep(10 * time.Second)
if atomic.LoadInt32(&done) != 1 {
panic("timed out")
}
}()
wg.Wait()
atomic.StoreInt32(&done, 1)
}
func TestNotifyExtra(t *testing.T) {
db := openTestConn(t)
defer db.Close()
if getServerVersion(t, db) < 90000 {
t.Skip("skipping NOTIFY payload test since the server does not appear to support it")
}
l, channel := newTestListenerConn(t)
defer l.Close()
ok, err := l.Listen("notify_test")
if !ok || err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_test, 'something'")
if err != nil {
t.Fatal(err)
}
err = expectNotification(t, channel, "notify_test", "something")
if err != nil {
t.Fatal(err)
}
}
// create a new test listener and also set the timeouts
func newTestListenerTimeout(t *testing.T, min time.Duration, max time.Duration) (*Listener, <-chan ListenerEventType) {
datname := os.Getenv("PGDATABASE")
sslmode := os.Getenv("PGSSLMODE")
if datname == "" {
os.Setenv("PGDATABASE", "pqgotest")
}
if sslmode == "" {
os.Setenv("PGSSLMODE", "disable")
}
eventch := make(chan ListenerEventType, 16)
l := NewListener("", min, max, func(t ListenerEventType, err error) { eventch <- t })
err := expectEvent(t, eventch, ListenerEventConnected)
if err != nil {
t.Fatal(err)
}
return l, eventch
}
func newTestListener(t *testing.T) (*Listener, <-chan ListenerEventType) {
return newTestListenerTimeout(t, time.Hour, time.Hour)
}
func TestListenerListen(t *testing.T) {
l, _ := newTestListener(t)
defer l.Close()
db := openTestConn(t)
defer db.Close()
err := l.Listen("notify_listen_test")
if err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_listen_test")
if err != nil {
t.Fatal(err)
}
err = expectNotification(t, l.Notify, "notify_listen_test", "")
if err != nil {
t.Fatal(err)
}
}
func TestListenerUnlisten(t *testing.T) {
l, _ := newTestListener(t)
defer l.Close()
db := openTestConn(t)
defer db.Close()
err := l.Listen("notify_listen_test")
if err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_listen_test")
if err != nil {
t.Fatal(err)
}
err = l.Unlisten("notify_listen_test")
if err != nil {
t.Fatal(err)
}
err = expectNotification(t, l.Notify, "notify_listen_test", "")
if err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_listen_test")
if err != nil {
t.Fatal(err)
}
err = expectNoNotification(t, l.Notify)
if err != nil {
t.Fatal(err)
}
}
func TestListenerUnlistenAll(t *testing.T) {
l, _ := newTestListener(t)
defer l.Close()
db := openTestConn(t)
defer db.Close()
err := l.Listen("notify_listen_test")
if err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_listen_test")
if err != nil {
t.Fatal(err)
}
err = l.UnlistenAll()
if err != nil {
t.Fatal(err)
}
err = expectNotification(t, l.Notify, "notify_listen_test", "")
if err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_listen_test")
if err != nil {
t.Fatal(err)
}
err = expectNoNotification(t, l.Notify)
if err != nil {
t.Fatal(err)
}
}
func TestListenerFailedQuery(t *testing.T) {
l, eventch := newTestListener(t)
defer l.Close()
db := openTestConn(t)
defer db.Close()
err := l.Listen("notify_listen_test")
if err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_listen_test")
if err != nil {
t.Fatal(err)
}
err = expectNotification(t, l.Notify, "notify_listen_test", "")
if err != nil {
t.Fatal(err)
}
// shouldn't cause a disconnect
ok, err := l.cn.ExecSimpleQuery("SELECT error")
if !ok {
t.Fatalf("could not send query to server: %v", err)
}
_, ok = err.(PGError)
if !ok {
t.Fatalf("unexpected error %v", err)
}
err = expectNoEvent(t, eventch)
if err != nil {
t.Fatal(err)
}
// should still work
_, err = db.Exec("NOTIFY notify_listen_test")
if err != nil {
t.Fatal(err)
}
err = expectNotification(t, l.Notify, "notify_listen_test", "")
if err != nil {
t.Fatal(err)
}
}
func TestListenerReconnect(t *testing.T) {
l, eventch := newTestListenerTimeout(t, 20*time.Millisecond, time.Hour)
defer l.Close()
db := openTestConn(t)
defer db.Close()
err := l.Listen("notify_listen_test")
if err != nil {
t.Fatal(err)
}
_, err = db.Exec("NOTIFY notify_listen_test")
if err != nil {
t.Fatal(err)
}
err = expectNotification(t, l.Notify, "notify_listen_test", "")
if err != nil {
t.Fatal(err)
}
// kill the connection and make sure it comes back up
ok, err := l.cn.ExecSimpleQuery("SELECT pg_terminate_backend(pg_backend_pid())")
if ok {
t.Fatalf("could not kill the connection: %v", err)
}
if err != io.EOF {
t.Fatalf("unexpected error %v", err)
}
err = expectEvent(t, eventch, ListenerEventDisconnected)
if err != nil {
t.Fatal(err)
}
err = expectEvent(t, eventch, ListenerEventReconnected)
if err != nil {
t.Fatal(err)
}
// should still work
_, err = db.Exec("NOTIFY notify_listen_test")
if err != nil {
t.Fatal(err)
}
// should get nil after Reconnected
err = expectNotification(t, l.Notify, "", "")
if err != errNilNotification {
t.Fatal(err)
}
err = expectNotification(t, l.Notify, "notify_listen_test", "")
if err != nil {
t.Fatal(err)
}
}
func TestListenerClose(t *testing.T) {
l, _ := newTestListenerTimeout(t, 20*time.Millisecond, time.Hour)
defer l.Close()
err := l.Close()
if err != nil {
t.Fatal(err)
}
err = l.Close()
if err != errListenerClosed {
t.Fatalf("expected errListenerClosed; got %v", err)
}
}
func TestListenerPing(t *testing.T) {
l, _ := newTestListenerTimeout(t, 20*time.Millisecond, time.Hour)
defer l.Close()
err := l.Ping()
if err != nil {
t.Fatal(err)
}
err = l.Close()
if err != nil {
t.Fatal(err)
}
err = l.Ping()
if err != errListenerClosed {
t.Fatalf("expected errListenerClosed; got %v", err)
}
}

6
vendor/src/github.com/lib/pq/oid/doc.go vendored Normal file
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@ -0,0 +1,6 @@
// Package oid contains OID constants
// as defined by the Postgres server.
package oid
// Oid is a Postgres Object ID.
type Oid uint32

74
vendor/src/github.com/lib/pq/oid/gen.go vendored Normal file
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@ -0,0 +1,74 @@
// +build ignore
// Generate the table of OID values
// Run with 'go run gen.go'.
package main
import (
"database/sql"
"fmt"
"log"
"os"
"os/exec"
_ "github.com/lib/pq"
)
func main() {
datname := os.Getenv("PGDATABASE")
sslmode := os.Getenv("PGSSLMODE")
if datname == "" {
os.Setenv("PGDATABASE", "pqgotest")
}
if sslmode == "" {
os.Setenv("PGSSLMODE", "disable")
}
db, err := sql.Open("postgres", "")
if err != nil {
log.Fatal(err)
}
cmd := exec.Command("gofmt")
cmd.Stderr = os.Stderr
w, err := cmd.StdinPipe()
if err != nil {
log.Fatal(err)
}
f, err := os.Create("types.go")
if err != nil {
log.Fatal(err)
}
cmd.Stdout = f
err = cmd.Start()
if err != nil {
log.Fatal(err)
}
fmt.Fprintln(w, "// generated by 'go run gen.go'; do not edit")
fmt.Fprintln(w, "\npackage oid")
fmt.Fprintln(w, "const (")
rows, err := db.Query(`
SELECT typname, oid
FROM pg_type WHERE oid < 10000
ORDER BY oid;
`)
if err != nil {
log.Fatal(err)
}
var name string
var oid int
for rows.Next() {
err = rows.Scan(&name, &oid)
if err != nil {
log.Fatal(err)
}
fmt.Fprintf(w, "T_%s Oid = %d\n", name, oid)
}
if err = rows.Err(); err != nil {
log.Fatal(err)
}
fmt.Fprintln(w, ")")
w.Close()
cmd.Wait()
}

161
vendor/src/github.com/lib/pq/oid/types.go vendored Normal file
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// generated by 'go run gen.go'; do not edit
package oid
const (
T_bool Oid = 16
T_bytea Oid = 17
T_char Oid = 18
T_name Oid = 19
T_int8 Oid = 20
T_int2 Oid = 21
T_int2vector Oid = 22
T_int4 Oid = 23
T_regproc Oid = 24
T_text Oid = 25
T_oid Oid = 26
T_tid Oid = 27
T_xid Oid = 28
T_cid Oid = 29
T_oidvector Oid = 30
T_pg_type Oid = 71
T_pg_attribute Oid = 75
T_pg_proc Oid = 81
T_pg_class Oid = 83
T_json Oid = 114
T_xml Oid = 142
T__xml Oid = 143
T_pg_node_tree Oid = 194
T__json Oid = 199
T_smgr Oid = 210
T_point Oid = 600
T_lseg Oid = 601
T_path Oid = 602
T_box Oid = 603
T_polygon Oid = 604
T_line Oid = 628
T__line Oid = 629
T_cidr Oid = 650
T__cidr Oid = 651
T_float4 Oid = 700
T_float8 Oid = 701
T_abstime Oid = 702
T_reltime Oid = 703
T_tinterval Oid = 704
T_unknown Oid = 705
T_circle Oid = 718
T__circle Oid = 719
T_money Oid = 790
T__money Oid = 791
T_macaddr Oid = 829
T_inet Oid = 869
T__bool Oid = 1000
T__bytea Oid = 1001
T__char Oid = 1002
T__name Oid = 1003
T__int2 Oid = 1005
T__int2vector Oid = 1006
T__int4 Oid = 1007
T__regproc Oid = 1008
T__text Oid = 1009
T__tid Oid = 1010
T__xid Oid = 1011
T__cid Oid = 1012
T__oidvector Oid = 1013
T__bpchar Oid = 1014
T__varchar Oid = 1015
T__int8 Oid = 1016
T__point Oid = 1017
T__lseg Oid = 1018
T__path Oid = 1019
T__box Oid = 1020
T__float4 Oid = 1021
T__float8 Oid = 1022
T__abstime Oid = 1023
T__reltime Oid = 1024
T__tinterval Oid = 1025
T__polygon Oid = 1027
T__oid Oid = 1028
T_aclitem Oid = 1033
T__aclitem Oid = 1034
T__macaddr Oid = 1040
T__inet Oid = 1041
T_bpchar Oid = 1042
T_varchar Oid = 1043
T_date Oid = 1082
T_time Oid = 1083
T_timestamp Oid = 1114
T__timestamp Oid = 1115
T__date Oid = 1182
T__time Oid = 1183
T_timestamptz Oid = 1184
T__timestamptz Oid = 1185
T_interval Oid = 1186
T__interval Oid = 1187
T__numeric Oid = 1231
T_pg_database Oid = 1248
T__cstring Oid = 1263
T_timetz Oid = 1266
T__timetz Oid = 1270
T_bit Oid = 1560
T__bit Oid = 1561
T_varbit Oid = 1562
T__varbit Oid = 1563
T_numeric Oid = 1700
T_refcursor Oid = 1790
T__refcursor Oid = 2201
T_regprocedure Oid = 2202
T_regoper Oid = 2203
T_regoperator Oid = 2204
T_regclass Oid = 2205
T_regtype Oid = 2206
T__regprocedure Oid = 2207
T__regoper Oid = 2208
T__regoperator Oid = 2209
T__regclass Oid = 2210
T__regtype Oid = 2211
T_record Oid = 2249
T_cstring Oid = 2275
T_any Oid = 2276
T_anyarray Oid = 2277
T_void Oid = 2278
T_trigger Oid = 2279
T_language_handler Oid = 2280
T_internal Oid = 2281
T_opaque Oid = 2282
T_anyelement Oid = 2283
T__record Oid = 2287
T_anynonarray Oid = 2776
T_pg_authid Oid = 2842
T_pg_auth_members Oid = 2843
T__txid_snapshot Oid = 2949
T_uuid Oid = 2950
T__uuid Oid = 2951
T_txid_snapshot Oid = 2970
T_fdw_handler Oid = 3115
T_anyenum Oid = 3500
T_tsvector Oid = 3614
T_tsquery Oid = 3615
T_gtsvector Oid = 3642
T__tsvector Oid = 3643
T__gtsvector Oid = 3644
T__tsquery Oid = 3645
T_regconfig Oid = 3734
T__regconfig Oid = 3735
T_regdictionary Oid = 3769
T__regdictionary Oid = 3770
T_anyrange Oid = 3831
T_event_trigger Oid = 3838
T_int4range Oid = 3904
T__int4range Oid = 3905
T_numrange Oid = 3906
T__numrange Oid = 3907
T_tsrange Oid = 3908
T__tsrange Oid = 3909
T_tstzrange Oid = 3910
T__tstzrange Oid = 3911
T_daterange Oid = 3912
T__daterange Oid = 3913
T_int8range Oid = 3926
T__int8range Oid = 3927
)

226
vendor/src/github.com/lib/pq/ssl_test.go vendored Normal file
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package pq
// This file contains SSL tests
import (
_ "crypto/sha256"
"crypto/x509"
"database/sql"
"fmt"
"os"
"path/filepath"
"testing"
)
func maybeSkipSSLTests(t *testing.T) {
// Require some special variables for testing certificates
if os.Getenv("PQSSLCERTTEST_PATH") == "" {
t.Skip("PQSSLCERTTEST_PATH not set, skipping SSL tests")
}
value := os.Getenv("PQGOSSLTESTS")
if value == "" || value == "0" {
t.Skip("PQGOSSLTESTS not enabled, skipping SSL tests")
} else if value != "1" {
t.Fatalf("unexpected value %q for PQGOSSLTESTS", value)
}
}
func openSSLConn(t *testing.T, conninfo string) (*sql.DB, error) {
db, err := openTestConnConninfo(conninfo)
if err != nil {
// should never fail
t.Fatal(err)
}
// Do something with the connection to see whether it's working or not.
tx, err := db.Begin()
if err == nil {
return db, tx.Rollback()
}
_ = db.Close()
return nil, err
}
func checkSSLSetup(t *testing.T, conninfo string) {
db, err := openSSLConn(t, conninfo)
if err == nil {
db.Close()
t.Fatalf("expected error with conninfo=%q", conninfo)
}
}
// Connect over SSL and run a simple query to test the basics
func TestSSLConnection(t *testing.T) {
maybeSkipSSLTests(t)
// Environment sanity check: should fail without SSL
checkSSLSetup(t, "sslmode=disable user=pqgossltest")
db, err := openSSLConn(t, "sslmode=require user=pqgossltest")
if err != nil {
t.Fatal(err)
}
rows, err := db.Query("SELECT 1")
if err != nil {
t.Fatal(err)
}
rows.Close()
}
// Test sslmode=verify-full
func TestSSLVerifyFull(t *testing.T) {
maybeSkipSSLTests(t)
// Environment sanity check: should fail without SSL
checkSSLSetup(t, "sslmode=disable user=pqgossltest")
// Not OK according to the system CA
_, err := openSSLConn(t, "host=postgres sslmode=verify-full user=pqgossltest")
if err == nil {
t.Fatal("expected error")
}
_, ok := err.(x509.UnknownAuthorityError)
if !ok {
t.Fatalf("expected x509.UnknownAuthorityError, got %#+v", err)
}
rootCertPath := filepath.Join(os.Getenv("PQSSLCERTTEST_PATH"), "root.crt")
rootCert := "sslrootcert=" + rootCertPath + " "
// No match on Common Name
_, err = openSSLConn(t, rootCert+"host=127.0.0.1 sslmode=verify-full user=pqgossltest")
if err == nil {
t.Fatal("expected error")
}
_, ok = err.(x509.HostnameError)
if !ok {
t.Fatalf("expected x509.HostnameError, got %#+v", err)
}
// OK
_, err = openSSLConn(t, rootCert+"host=postgres sslmode=verify-full user=pqgossltest")
if err != nil {
t.Fatal(err)
}
}
// Test sslmode=verify-ca
func TestSSLVerifyCA(t *testing.T) {
maybeSkipSSLTests(t)
// Environment sanity check: should fail without SSL
checkSSLSetup(t, "sslmode=disable user=pqgossltest")
// Not OK according to the system CA
_, err := openSSLConn(t, "host=postgres sslmode=verify-ca user=pqgossltest")
if err == nil {
t.Fatal("expected error")
}
_, ok := err.(x509.UnknownAuthorityError)
if !ok {
t.Fatalf("expected x509.UnknownAuthorityError, got %#+v", err)
}
rootCertPath := filepath.Join(os.Getenv("PQSSLCERTTEST_PATH"), "root.crt")
rootCert := "sslrootcert=" + rootCertPath + " "
// No match on Common Name, but that's OK
_, err = openSSLConn(t, rootCert+"host=127.0.0.1 sslmode=verify-ca user=pqgossltest")
if err != nil {
t.Fatal(err)
}
// Everything OK
_, err = openSSLConn(t, rootCert+"host=postgres sslmode=verify-ca user=pqgossltest")
if err != nil {
t.Fatal(err)
}
}
func getCertConninfo(t *testing.T, source string) string {
var sslkey string
var sslcert string
certpath := os.Getenv("PQSSLCERTTEST_PATH")
switch source {
case "missingkey":
sslkey = "/tmp/filedoesnotexist"
sslcert = filepath.Join(certpath, "postgresql.crt")
case "missingcert":
sslkey = filepath.Join(certpath, "postgresql.key")
sslcert = "/tmp/filedoesnotexist"
case "certtwice":
sslkey = filepath.Join(certpath, "postgresql.crt")
sslcert = filepath.Join(certpath, "postgresql.crt")
case "valid":
sslkey = filepath.Join(certpath, "postgresql.key")
sslcert = filepath.Join(certpath, "postgresql.crt")
default:
t.Fatalf("invalid source %q", source)
}
return fmt.Sprintf("sslmode=require user=pqgosslcert sslkey=%s sslcert=%s", sslkey, sslcert)
}
// Authenticate over SSL using client certificates
func TestSSLClientCertificates(t *testing.T) {
maybeSkipSSLTests(t)
// Environment sanity check: should fail without SSL
checkSSLSetup(t, "sslmode=disable user=pqgossltest")
// Should also fail without a valid certificate
db, err := openSSLConn(t, "sslmode=require user=pqgosslcert")
if err == nil {
db.Close()
t.Fatal("expected error")
}
pge, ok := err.(*Error)
if !ok {
t.Fatal("expected pq.Error")
}
if pge.Code.Name() != "invalid_authorization_specification" {
t.Fatalf("unexpected error code %q", pge.Code.Name())
}
// Should work
db, err = openSSLConn(t, getCertConninfo(t, "valid"))
if err != nil {
t.Fatal(err)
}
rows, err := db.Query("SELECT 1")
if err != nil {
t.Fatal(err)
}
rows.Close()
}
// Test errors with ssl certificates
func TestSSLClientCertificatesMissingFiles(t *testing.T) {
maybeSkipSSLTests(t)
// Environment sanity check: should fail without SSL
checkSSLSetup(t, "sslmode=disable user=pqgossltest")
// Key missing, should fail
_, err := openSSLConn(t, getCertConninfo(t, "missingkey"))
if err == nil {
t.Fatal("expected error")
}
// should be a PathError
_, ok := err.(*os.PathError)
if !ok {
t.Fatalf("expected PathError, got %#+v", err)
}
// Cert missing, should fail
_, err = openSSLConn(t, getCertConninfo(t, "missingcert"))
if err == nil {
t.Fatal("expected error")
}
// should be a PathError
_, ok = err.(*os.PathError)
if !ok {
t.Fatalf("expected PathError, got %#+v", err)
}
// Key has wrong permissions, should fail
_, err = openSSLConn(t, getCertConninfo(t, "certtwice"))
if err == nil {
t.Fatal("expected error")
}
if err != ErrSSLKeyHasWorldPermissions {
t.Fatalf("expected ErrSSLKeyHasWorldPermissions, got %#+v", err)
}
}

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vendor/src/github.com/lib/pq/url.go vendored Normal file
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package pq
import (
"fmt"
nurl "net/url"
"sort"
"strings"
)
// ParseURL no longer needs to be used by clients of this library since supplying a URL as a
// connection string to sql.Open() is now supported:
//
// sql.Open("postgres", "postgres://bob:secret@1.2.3.4:5432/mydb?sslmode=verify-full")
//
// It remains exported here for backwards-compatibility.
//
// ParseURL converts a url to a connection string for driver.Open.
// Example:
//
// "postgres://bob:secret@1.2.3.4:5432/mydb?sslmode=verify-full"
//
// converts to:
//
// "user=bob password=secret host=1.2.3.4 port=5432 dbname=mydb sslmode=verify-full"
//
// A minimal example:
//
// "postgres://"
//
// This will be blank, causing driver.Open to use all of the defaults
func ParseURL(url string) (string, error) {
u, err := nurl.Parse(url)
if err != nil {
return "", err
}
if u.Scheme != "postgres" && u.Scheme != "postgresql" {
return "", fmt.Errorf("invalid connection protocol: %s", u.Scheme)
}
var kvs []string
escaper := strings.NewReplacer(` `, `\ `, `'`, `\'`, `\`, `\\`)
accrue := func(k, v string) {
if v != "" {
kvs = append(kvs, k+"="+escaper.Replace(v))
}
}
if u.User != nil {
v := u.User.Username()
accrue("user", v)
v, _ = u.User.Password()
accrue("password", v)
}
i := strings.Index(u.Host, ":")
if i < 0 {
accrue("host", u.Host)
} else {
accrue("host", u.Host[:i])
accrue("port", u.Host[i+1:])
}
if u.Path != "" {
accrue("dbname", u.Path[1:])
}
q := u.Query()
for k := range q {
accrue(k, q.Get(k))
}
sort.Strings(kvs) // Makes testing easier (not a performance concern)
return strings.Join(kvs, " "), nil
}

54
vendor/src/github.com/lib/pq/url_test.go vendored Normal file
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package pq
import (
"testing"
)
func TestSimpleParseURL(t *testing.T) {
expected := "host=hostname.remote"
str, err := ParseURL("postgres://hostname.remote")
if err != nil {
t.Fatal(err)
}
if str != expected {
t.Fatalf("unexpected result from ParseURL:\n+ %v\n- %v", str, expected)
}
}
func TestFullParseURL(t *testing.T) {
expected := `dbname=database host=hostname.remote password=top\ secret port=1234 user=username`
str, err := ParseURL("postgres://username:top%20secret@hostname.remote:1234/database")
if err != nil {
t.Fatal(err)
}
if str != expected {
t.Fatalf("unexpected result from ParseURL:\n+ %s\n- %s", str, expected)
}
}
func TestInvalidProtocolParseURL(t *testing.T) {
_, err := ParseURL("http://hostname.remote")
switch err {
case nil:
t.Fatal("Expected an error from parsing invalid protocol")
default:
msg := "invalid connection protocol: http"
if err.Error() != msg {
t.Fatalf("Unexpected error message:\n+ %s\n- %s",
err.Error(), msg)
}
}
}
func TestMinimalURL(t *testing.T) {
cs, err := ParseURL("postgres://")
if err != nil {
t.Fatal(err)
}
if cs != "" {
t.Fatalf("expected blank connection string, got: %q", cs)
}
}

24
vendor/src/github.com/lib/pq/user_posix.go vendored Normal file
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// Package pq is a pure Go Postgres driver for the database/sql package.
// +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris
package pq
import (
"os"
"os/user"
)
func userCurrent() (string, error) {
u, err := user.Current()
if err == nil {
return u.Username, nil
}
name := os.Getenv("USER")
if name != "" {
return name, nil
}
return "", ErrCouldNotDetectUsername
}

27
vendor/src/github.com/lib/pq/user_windows.go vendored Normal file
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// Package pq is a pure Go Postgres driver for the database/sql package.
package pq
import (
"path/filepath"
"syscall"
)
// Perform Windows user name lookup identically to libpq.
//
// The PostgreSQL code makes use of the legacy Win32 function
// GetUserName, and that function has not been imported into stock Go.
// GetUserNameEx is available though, the difference being that a
// wider range of names are available. To get the output to be the
// same as GetUserName, only the base (or last) component of the
// result is returned.
func userCurrent() (string, error) {
pw_name := make([]uint16, 128)
pwname_size := uint32(len(pw_name)) - 1
err := syscall.GetUserNameEx(syscall.NameSamCompatible, &pw_name[0], &pwname_size)
if err != nil {
return "", ErrCouldNotDetectUsername
}
s := syscall.UTF16ToString(pw_name)
u := filepath.Base(s)
return u, nil
}

21
vendor/src/github.com/mattn/go-sqlite3/LICENSE vendored Normal file
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The MIT License (MIT)
Copyright (c) 2014 Yasuhiro Matsumoto
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

70
vendor/src/github.com/mattn/go-sqlite3/README.md vendored Normal file
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go-sqlite3
==========
[![Build Status](https://travis-ci.org/mattn/go-sqlite3.png?branch=master)](https://travis-ci.org/mattn/go-sqlite3)
[![Coverage Status](https://coveralls.io/repos/mattn/go-sqlite3/badge.png?branch=master)](https://coveralls.io/r/mattn/go-sqlite3?branch=master)
Description
-----------
sqlite3 driver conforming to the built-in database/sql interface
Installation
------------
This package can be installed with the go get command:
go get github.com/mattn/go-sqlite3
Documentation
-------------
API documentation can be found here: http://godoc.org/github.com/mattn/go-sqlite3
Examples can be found under the `./_example` directory
FAQ
---
* Want to build go-sqlite3 with libsqlite3 on my linux.
Use `go build --tags "libsqlite3 linux"`
* Want to build go-sqlite3 with icu extension.
Use `go build --tags "icu"`
* Can't build go-sqlite3 on windows 64bit.
> Probably, you are using go 1.0, go1.0 has a problem when it comes to compiling/linking on windows 64bit.
> See: https://github.com/mattn/go-sqlite3/issues/27
* Getting insert error while query is opened.
> You can pass some arguments into the connection string, for example, a URI.
> See: https://github.com/mattn/go-sqlite3/issues/39
* Do you want cross compiling? mingw on Linux or Mac?
> See: https://github.com/mattn/go-sqlite3/issues/106
> See also: http://www.limitlessfx.com/cross-compile-golang-app-for-windows-from-linux.html
* Want to get time.Time with current locale
Use `loc=auto` in SQLite3 filename schema like `file:foo.db?loc=auto`.
License
-------
MIT: http://mattn.mit-license.org/2012
sqlite3-binding.c, sqlite3-binding.h, sqlite3ext.h
The -binding suffix was added to avoid build failures under gccgo.
In this repository, those files are amalgamation code that copied from SQLite3. The license of those codes are depend on the license of SQLite3.
Author
------
Yasuhiro Matsumoto (a.k.a mattn)

133
vendor/src/github.com/mattn/go-sqlite3/_example/custom_func/main.go vendored Normal file
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package main
import (
"database/sql"
"fmt"
"log"
"math"
"math/rand"
sqlite "github.com/mattn/go-sqlite3"
)
// Computes x^y
func pow(x, y int64) int64 {
return int64(math.Pow(float64(x), float64(y)))
}
// Computes the bitwise exclusive-or of all its arguments
func xor(xs ...int64) int64 {
var ret int64
for _, x := range xs {
ret ^= x
}
return ret
}
// Returns a random number. It's actually deterministic here because
// we don't seed the RNG, but it's an example of a non-pure function
// from SQLite's POV.
func getrand() int64 {
return rand.Int63()
}
// Computes the standard deviation of a GROUPed BY set of values
type stddev struct {
xs []int64
// Running average calculation
sum int64
n int64
}
func newStddev() *stddev { return &stddev{} }
func (s *stddev) Step(x int64) {
s.xs = append(s.xs, x)
s.sum += x
s.n++
}
func (s *stddev) Done() float64 {
mean := float64(s.sum) / float64(s.n)
var sqDiff []float64
for _, x := range s.xs {
sqDiff = append(sqDiff, math.Pow(float64(x)-mean, 2))
}
var dev float64
for _, x := range sqDiff {
dev += x
}
dev /= float64(len(sqDiff))
return math.Sqrt(dev)
}
func main() {
sql.Register("sqlite3_custom", &sqlite.SQLiteDriver{
ConnectHook: func(conn *sqlite.SQLiteConn) error {
if err := conn.RegisterFunc("pow", pow, true); err != nil {
return err
}
if err := conn.RegisterFunc("xor", xor, true); err != nil {
return err
}
if err := conn.RegisterFunc("rand", getrand, false); err != nil {
return err
}
if err := conn.RegisterAggregator("stddev", newStddev, true); err != nil {
return err
}
return nil
},
})
db, err := sql.Open("sqlite3_custom", ":memory:")
if err != nil {
log.Fatal("Failed to open database:", err)
}
defer db.Close()
var i int64
err = db.QueryRow("SELECT pow(2,3)").Scan(&i)
if err != nil {
log.Fatal("POW query error:", err)
}
fmt.Println("pow(2,3) =", i) // 8
err = db.QueryRow("SELECT xor(1,2,3,4,5,6)").Scan(&i)
if err != nil {
log.Fatal("XOR query error:", err)
}
fmt.Println("xor(1,2,3,4,5) =", i) // 7
err = db.QueryRow("SELECT rand()").Scan(&i)
if err != nil {
log.Fatal("RAND query error:", err)
}
fmt.Println("rand() =", i) // pseudorandom
_, err = db.Exec("create table foo (department integer, profits integer)")
if err != nil {
log.Fatal("Failed to create table:", err)
}
_, err = db.Exec("insert into foo values (1, 10), (1, 20), (1, 45), (2, 42), (2, 115)")
if err != nil {
log.Fatal("Failed to insert records:", err)
}
rows, err := db.Query("select department, stddev(profits) from foo group by department")
if err != nil {
log.Fatal("STDDEV query error:", err)
}
defer rows.Close()
for rows.Next() {
var dept int64
var dev float64
if err := rows.Scan(&dept, &dev); err != nil {
log.Fatal(err)
}
fmt.Printf("dept=%d stddev=%f\n", dept, dev)
}
if err := rows.Err(); err != nil {
log.Fatal(err)
}
}

71
vendor/src/github.com/mattn/go-sqlite3/_example/hook/hook.go vendored Normal file
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package main
import (
"database/sql"
"github.com/mattn/go-sqlite3"
"log"
"os"
)
func main() {
sqlite3conn := []*sqlite3.SQLiteConn{}
sql.Register("sqlite3_with_hook_example",
&sqlite3.SQLiteDriver{
ConnectHook: func(conn *sqlite3.SQLiteConn) error {
sqlite3conn = append(sqlite3conn, conn)
return nil
},
})
os.Remove("./foo.db")
os.Remove("./bar.db")
destDb, err := sql.Open("sqlite3_with_hook_example", "./foo.db")
if err != nil {
log.Fatal(err)
}
defer destDb.Close()
destDb.Ping()
_, err = destDb.Exec("create table foo(id int, value text)")
if err != nil {
log.Fatal(err)
}
_, err = destDb.Exec("insert into foo values(1, 'foo')")
if err != nil {
log.Fatal(err)
}
_, err = destDb.Exec("insert into foo values(2, 'bar')")
if err != nil {
log.Fatal(err)
}
_, err = destDb.Query("select * from foo")
if err != nil {
log.Fatal(err)
}
srcDb, err := sql.Open("sqlite3_with_hook_example", "./bar.db")
if err != nil {
log.Fatal(err)
}
defer srcDb.Close()
srcDb.Ping()
bk, err := sqlite3conn[1].Backup("main", sqlite3conn[0], "main")
if err != nil {
log.Fatal(err)
}
_, err = bk.Step(-1)
if err != nil {
log.Fatal(err)
}
_, err = destDb.Query("select * from foo")
if err != nil {
log.Fatal(err)
}
_, err = destDb.Exec("insert into foo values(3, 'bar')")
if err != nil {
log.Fatal(err)
}
bk.Finish()
}

22
vendor/src/github.com/mattn/go-sqlite3/_example/mod_regexp/Makefile vendored Normal file
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ifeq ($(OS),Windows_NT)
EXE=extension.exe
EXT=sqlite3_mod_regexp.dll
RM=cmd /c del
LDFLAG=
else
EXE=extension
EXT=sqlite3_mod_regexp.so
RM=rm
LDFLAG=-fPIC
endif
all : $(EXE) $(EXT)
$(EXE) : extension.go
go build $<
$(EXT) : sqlite3_mod_regexp.c
gcc $(LDFLAG) -shared -o $@ $< -lsqlite3 -lpcre
clean :
@-$(RM) $(EXE) $(EXT)

43
vendor/src/github.com/mattn/go-sqlite3/_example/mod_regexp/extension.go vendored Normal file
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package main
import (
"database/sql"
"fmt"
"github.com/mattn/go-sqlite3"
"log"
)
func main() {
sql.Register("sqlite3_with_extensions",
&sqlite3.SQLiteDriver{
Extensions: []string{
"sqlite3_mod_regexp",
},
})
db, err := sql.Open("sqlite3_with_extensions", ":memory:")
if err != nil {
log.Fatal(err)
}
defer db.Close()
// Force db to make a new connection in pool
// by putting the original in a transaction
tx, err := db.Begin()
if err != nil {
log.Fatal(err)
}
defer tx.Commit()
// New connection works (hopefully!)
rows, err := db.Query("select 'hello world' where 'hello world' regexp '^hello.*d$'")
if err != nil {
log.Fatal(err)
}
defer rows.Close()
for rows.Next() {
var helloworld string
rows.Scan(&helloworld)
fmt.Println(helloworld)
}
}

31
vendor/src/github.com/mattn/go-sqlite3/_example/mod_regexp/sqlite3_mod_regexp.c vendored Normal file
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#include <pcre.h>
#include <string.h>
#include <stdio.h>
#include <sqlite3ext.h>
SQLITE_EXTENSION_INIT1
static void regexp_func(sqlite3_context *context, int argc, sqlite3_value **argv) {
if (argc >= 2) {
const char *target = (const char *)sqlite3_value_text(argv[1]);
const char *pattern = (const char *)sqlite3_value_text(argv[0]);
const char* errstr = NULL;
int erroff = 0;
int vec[500];
int n, rc;
pcre* re = pcre_compile(pattern, 0, &errstr, &erroff, NULL);
rc = pcre_exec(re, NULL, target, strlen(target), 0, 0, vec, 500);
if (rc <= 0) {
sqlite3_result_error(context, errstr, 0);
return;
}
sqlite3_result_int(context, 1);
}
}
#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_extension_init(sqlite3 *db, char **errmsg, const sqlite3_api_routines *api) {
SQLITE_EXTENSION_INIT2(api);
return sqlite3_create_function(db, "regexp", 2, SQLITE_UTF8, (void*)db, regexp_func, NULL, NULL);
}

24
vendor/src/github.com/mattn/go-sqlite3/_example/mod_vtable/Makefile vendored Normal file
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ifeq ($(OS),Windows_NT)
EXE=extension.exe
EXT=sqlite3_mod_vtable.dll
RM=cmd /c del
LIBCURL=-lcurldll
LDFLAG=
else
EXE=extension
EXT=sqlite3_mod_vtable.so
RM=rm
LDFLAG=-fPIC
LIBCURL=-lcurl
endif
all : $(EXE) $(EXT)
$(EXE) : extension.go
go build $<
$(EXT) : sqlite3_mod_vtable.cc
g++ $(LDFLAG) -shared -o $@ $< -lsqlite3 $(LIBCURL)
clean :
@-$(RM) $(EXE) $(EXT)

36
vendor/src/github.com/mattn/go-sqlite3/_example/mod_vtable/extension.go vendored Normal file
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package main
import (
"database/sql"
"fmt"
"github.com/mattn/go-sqlite3"
"log"
)
func main() {
sql.Register("sqlite3_with_extensions",
&sqlite3.SQLiteDriver{
Extensions: []string{
"sqlite3_mod_vtable",
},
})
db, err := sql.Open("sqlite3_with_extensions", ":memory:")
if err != nil {
log.Fatal(err)
}
defer db.Close()
db.Exec("create virtual table repo using github(id, full_name, description, html_url)")
rows, err := db.Query("select id, full_name, description, html_url from repo")
if err != nil {
log.Fatal(err)
}
defer rows.Close()
for rows.Next() {
var id, full_name, description, html_url string
rows.Scan(&id, &full_name, &description, &html_url)
fmt.Printf("%s: %s\n\t%s\n\t%s\n\n", id, full_name, description, html_url)
}
}

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vendor/src/github.com/mattn/go-sqlite3/_example/mod_vtable/picojson.h vendored Normal file
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238
vendor/src/github.com/mattn/go-sqlite3/_example/mod_vtable/sqlite3_mod_vtable.cc vendored Normal file
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#include <string>
#include <sstream>
#include <sqlite3-binding.h>
#include <sqlite3ext.h>
#include <curl/curl.h>
#include "picojson.h"
#ifdef _WIN32
# define EXPORT __declspec(dllexport)
#else
# define EXPORT
#endif
SQLITE_EXTENSION_INIT1;
typedef struct {
char* data; // response data from server
size_t size; // response size of data
} MEMFILE;
MEMFILE*
memfopen() {
MEMFILE* mf = (MEMFILE*) malloc(sizeof(MEMFILE));
if (mf) {
mf->data = NULL;
mf->size = 0;
}
return mf;
}
void
memfclose(MEMFILE* mf) {
if (mf->data) free(mf->data);
free(mf);
}
size_t
memfwrite(char* ptr, size_t size, size_t nmemb, void* stream) {
MEMFILE* mf = (MEMFILE*) stream;
int block = size * nmemb;
if (!mf) return block; // through
if (!mf->data)
mf->data = (char*) malloc(block);
else
mf->data = (char*) realloc(mf->data, mf->size + block);
if (mf->data) {
memcpy(mf->data + mf->size, ptr, block);
mf->size += block;
}
return block;
}
char*
memfstrdup(MEMFILE* mf) {
char* buf;
if (mf->size == 0) return NULL;
buf = (char*) malloc(mf->size + 1);
memcpy(buf, mf->data, mf->size);
buf[mf->size] = 0;
return buf;
}
static int
my_connect(sqlite3 *db, void *pAux, int argc, const char * const *argv, sqlite3_vtab **ppVTab, char **c) {
std::stringstream ss;
ss << "CREATE TABLE " << argv[0]
<< "(id int, full_name text, description text, html_url text)";
int rc = sqlite3_declare_vtab(db, ss.str().c_str());
*ppVTab = (sqlite3_vtab *) sqlite3_malloc(sizeof(sqlite3_vtab));
memset(*ppVTab, 0, sizeof(sqlite3_vtab));
return rc;
}
static int
my_create(sqlite3 *db, void *pAux, int argc, const char * const * argv, sqlite3_vtab **ppVTab, char **c) {
return my_connect(db, pAux, argc, argv, ppVTab, c);
}
static int my_disconnect(sqlite3_vtab *pVTab) {
sqlite3_free(pVTab);
return SQLITE_OK;
}
static int
my_destroy(sqlite3_vtab *pVTab) {
sqlite3_free(pVTab);
return SQLITE_OK;
}
typedef struct {
sqlite3_vtab_cursor base;
int index;
picojson::value* rows;
} cursor;
static int
my_open(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor) {
MEMFILE* mf;
CURL* curl;
char* json;
CURLcode res = CURLE_OK;
char error[CURL_ERROR_SIZE] = {0};
char* cert_file = getenv("SSL_CERT_FILE");
mf = memfopen();
curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 2);
curl_easy_setopt(curl, CURLOPT_USERAGENT, "curl/7.29.0");
curl_easy_setopt(curl, CURLOPT_URL, "https://api.github.com/repositories");
if (cert_file)
curl_easy_setopt(curl, CURLOPT_CAINFO, cert_file);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, error);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, mf);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, memfwrite);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
if (res != CURLE_OK) {
std::cerr << error << std::endl;
return SQLITE_FAIL;
}
picojson::value* v = new picojson::value;
std::string err;
picojson::parse(*v, mf->data, mf->data + mf->size, &err);
memfclose(mf);
if (!err.empty()) {
delete v;
std::cerr << err << std::endl;
return SQLITE_FAIL;
}
cursor *c = (cursor *)sqlite3_malloc(sizeof(cursor));
c->rows = v;
c->index = 0;
*ppCursor = &c->base;
return SQLITE_OK;
}
static int
my_close(cursor *c) {
delete c->rows;
sqlite3_free(c);
return SQLITE_OK;
}
static int
my_filter(cursor *c, int idxNum, const char *idxStr, int argc, sqlite3_value **argv) {
c->index = 0;
return SQLITE_OK;
}
static int
my_next(cursor *c) {
c->index++;
return SQLITE_OK;
}
static int
my_eof(cursor *c) {
return c->index >= c->rows->get<picojson::array>().size() ? 1 : 0;
}
static int
my_column(cursor *c, sqlite3_context *ctxt, int i) {
picojson::value v = c->rows->get<picojson::array>()[c->index];
picojson::object row = v.get<picojson::object>();
const char* p = NULL;
switch (i) {
case 0:
p = row["id"].to_str().c_str();
break;
case 1:
p = row["full_name"].to_str().c_str();
break;
case 2:
p = row["description"].to_str().c_str();
break;
case 3:
p = row["html_url"].to_str().c_str();
break;
}
sqlite3_result_text(ctxt, strdup(p), strlen(p), free);
return SQLITE_OK;
}
static int
my_rowid(cursor *c, sqlite3_int64 *pRowid) {
*pRowid = c->index;
return SQLITE_OK;
}
static int
my_bestindex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo) {
return SQLITE_OK;
}
static const sqlite3_module module = {
0,
my_create,
my_connect,
my_bestindex,
my_disconnect,
my_destroy,
my_open,
(int (*)(sqlite3_vtab_cursor *)) my_close,
(int (*)(sqlite3_vtab_cursor *, int, char const *, int, sqlite3_value **)) my_filter,
(int (*)(sqlite3_vtab_cursor *)) my_next,
(int (*)(sqlite3_vtab_cursor *)) my_eof,
(int (*)(sqlite3_vtab_cursor *, sqlite3_context *, int)) my_column,
(int (*)(sqlite3_vtab_cursor *, sqlite3_int64 *)) my_rowid,
NULL, // my_update
NULL, // my_begin
NULL, // my_sync
NULL, // my_commit
NULL, // my_rollback
NULL, // my_findfunction
NULL, // my_rename
};
static void
destructor(void *arg) {
return;
}
extern "C" {
EXPORT int
sqlite3_extension_init(sqlite3 *db, char **errmsg, const sqlite3_api_routines *api) {
SQLITE_EXTENSION_INIT2(api);
sqlite3_create_module_v2(db, "github", &module, NULL, destructor);
return 0;
}
}

92
vendor/src/github.com/mattn/go-sqlite3/_example/simple/simple.go vendored Normal file
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package main
import (
"database/sql"
"fmt"
_ "github.com/mattn/go-sqlite3"
"log"
"os"
)
func main() {
os.Remove("./foo.db")
db, err := sql.Open("sqlite3", "./foo.db")
if err != nil {
log.Fatal(err)
}
defer db.Close()
sqlStmt := `
create table foo (id integer not null primary key, name text);
delete from foo;
`
_, err = db.Exec(sqlStmt)
if err != nil {
log.Printf("%q: %s\n", err, sqlStmt)
return
}
tx, err := db.Begin()
if err != nil {
log.Fatal(err)
}
stmt, err := tx.Prepare("insert into foo(id, name) values(?, ?)")
if err != nil {
log.Fatal(err)
}
defer stmt.Close()
for i := 0; i < 100; i++ {
_, err = stmt.Exec(i, fmt.Sprintf("こんにちわ世界%03d", i))
if err != nil {
log.Fatal(err)
}
}
tx.Commit()
rows, err := db.Query("select id, name from foo")
if err != nil {
log.Fatal(err)
}
defer rows.Close()
for rows.Next() {
var id int
var name string
rows.Scan(&id, &name)
fmt.Println(id, name)
}
stmt, err = db.Prepare("select name from foo where id = ?")
if err != nil {
log.Fatal(err)
}
defer stmt.Close()
var name string
err = stmt.QueryRow("3").Scan(&name)
if err != nil {
log.Fatal(err)
}
fmt.Println(name)
_, err = db.Exec("delete from foo")
if err != nil {
log.Fatal(err)
}
_, err = db.Exec("insert into foo(id, name) values(1, 'foo'), (2, 'bar'), (3, 'baz')")
if err != nil {
log.Fatal(err)
}
rows, err = db.Query("select id, name from foo")
if err != nil {
log.Fatal(err)
}
defer rows.Close()
for rows.Next() {
var id int
var name string
rows.Scan(&id, &name)
fmt.Println(id, name)
}
}

70
vendor/src/github.com/mattn/go-sqlite3/backup.go vendored Normal file
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// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package sqlite3
/*
#include <sqlite3-binding.h>
#include <stdlib.h>
*/
import "C"
import (
"runtime"
"unsafe"
)
type SQLiteBackup struct {
b *C.sqlite3_backup
}
func (c *SQLiteConn) Backup(dest string, conn *SQLiteConn, src string) (*SQLiteBackup, error) {
destptr := C.CString(dest)
defer C.free(unsafe.Pointer(destptr))
srcptr := C.CString(src)
defer C.free(unsafe.Pointer(srcptr))
if b := C.sqlite3_backup_init(c.db, destptr, conn.db, srcptr); b != nil {
bb := &SQLiteBackup{b: b}
runtime.SetFinalizer(bb, (*SQLiteBackup).Finish)
return bb, nil
}
return nil, c.lastError()
}
// Backs up for one step. Calls the underlying `sqlite3_backup_step` function.
// This function returns a boolean indicating if the backup is done and
// an error signalling any other error. Done is returned if the underlying C
// function returns SQLITE_DONE (Code 101)
func (b *SQLiteBackup) Step(p int) (bool, error) {
ret := C.sqlite3_backup_step(b.b, C.int(p))
if ret == C.SQLITE_DONE {
return true, nil
} else if ret != 0 && ret != C.SQLITE_LOCKED && ret != C.SQLITE_BUSY {
return false, Error{Code: ErrNo(ret)}
}
return false, nil
}
func (b *SQLiteBackup) Remaining() int {
return int(C.sqlite3_backup_remaining(b.b))
}
func (b *SQLiteBackup) PageCount() int {
return int(C.sqlite3_backup_pagecount(b.b))
}
func (b *SQLiteBackup) Finish() error {
return b.Close()
}
func (b *SQLiteBackup) Close() error {
ret := C.sqlite3_backup_finish(b.b)
if ret != 0 {
return Error{Code: ErrNo(ret)}
}
b.b = nil
runtime.SetFinalizer(b, nil)
return nil
}

290
vendor/src/github.com/mattn/go-sqlite3/callback.go vendored Normal file
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// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package sqlite3
// You can't export a Go function to C and have definitions in the C
// preamble in the same file, so we have to have callbackTrampoline in
// its own file. Because we need a separate file anyway, the support
// code for SQLite custom functions is in here.
/*
#include <sqlite3-binding.h>
#include <stdlib.h>
void _sqlite3_result_text(sqlite3_context* ctx, const char* s);
void _sqlite3_result_blob(sqlite3_context* ctx, const void* b, int l);
*/
import "C"
import (
"errors"
"fmt"
"math"
"reflect"
"unsafe"
)
//export callbackTrampoline
func callbackTrampoline(ctx *C.sqlite3_context, argc int, argv **C.sqlite3_value) {
args := (*[(math.MaxInt32 - 1) / unsafe.Sizeof((*C.sqlite3_value)(nil))]*C.sqlite3_value)(unsafe.Pointer(argv))[:argc:argc]
fi := (*functionInfo)(unsafe.Pointer(C.sqlite3_user_data(ctx)))
fi.Call(ctx, args)
}
//export stepTrampoline
func stepTrampoline(ctx *C.sqlite3_context, argc int, argv **C.sqlite3_value) {
args := (*[(math.MaxInt32 - 1) / unsafe.Sizeof((*C.sqlite3_value)(nil))]*C.sqlite3_value)(unsafe.Pointer(argv))[:argc:argc]
ai := (*aggInfo)(unsafe.Pointer(C.sqlite3_user_data(ctx)))
ai.Step(ctx, args)
}
//export doneTrampoline
func doneTrampoline(ctx *C.sqlite3_context) {
ai := (*aggInfo)(unsafe.Pointer(C.sqlite3_user_data(ctx)))
ai.Done(ctx)
}
// This is only here so that tests can refer to it.
type callbackArgRaw C.sqlite3_value
type callbackArgConverter func(*C.sqlite3_value) (reflect.Value, error)
type callbackArgCast struct {
f callbackArgConverter
typ reflect.Type
}
func (c callbackArgCast) Run(v *C.sqlite3_value) (reflect.Value, error) {
val, err := c.f(v)
if err != nil {
return reflect.Value{}, err
}
if !val.Type().ConvertibleTo(c.typ) {
return reflect.Value{}, fmt.Errorf("cannot convert %s to %s", val.Type(), c.typ)
}
return val.Convert(c.typ), nil
}
func callbackArgInt64(v *C.sqlite3_value) (reflect.Value, error) {
if C.sqlite3_value_type(v) != C.SQLITE_INTEGER {
return reflect.Value{}, fmt.Errorf("argument must be an INTEGER")
}
return reflect.ValueOf(int64(C.sqlite3_value_int64(v))), nil
}
func callbackArgBool(v *C.sqlite3_value) (reflect.Value, error) {
if C.sqlite3_value_type(v) != C.SQLITE_INTEGER {
return reflect.Value{}, fmt.Errorf("argument must be an INTEGER")
}
i := int64(C.sqlite3_value_int64(v))
val := false
if i != 0 {
val = true
}
return reflect.ValueOf(val), nil
}
func callbackArgFloat64(v *C.sqlite3_value) (reflect.Value, error) {
if C.sqlite3_value_type(v) != C.SQLITE_FLOAT {
return reflect.Value{}, fmt.Errorf("argument must be a FLOAT")
}
return reflect.ValueOf(float64(C.sqlite3_value_double(v))), nil
}
func callbackArgBytes(v *C.sqlite3_value) (reflect.Value, error) {
switch C.sqlite3_value_type(v) {
case C.SQLITE_BLOB:
l := C.sqlite3_value_bytes(v)
p := C.sqlite3_value_blob(v)
return reflect.ValueOf(C.GoBytes(p, l)), nil
case C.SQLITE_TEXT:
l := C.sqlite3_value_bytes(v)
c := unsafe.Pointer(C.sqlite3_value_text(v))
return reflect.ValueOf(C.GoBytes(c, l)), nil
default:
return reflect.Value{}, fmt.Errorf("argument must be BLOB or TEXT")
}
}
func callbackArgString(v *C.sqlite3_value) (reflect.Value, error) {
switch C.sqlite3_value_type(v) {
case C.SQLITE_BLOB:
l := C.sqlite3_value_bytes(v)
p := (*C.char)(C.sqlite3_value_blob(v))
return reflect.ValueOf(C.GoStringN(p, l)), nil
case C.SQLITE_TEXT:
c := (*C.char)(unsafe.Pointer(C.sqlite3_value_text(v)))
return reflect.ValueOf(C.GoString(c)), nil
default:
return reflect.Value{}, fmt.Errorf("argument must be BLOB or TEXT")
}
}
func callbackArgGeneric(v *C.sqlite3_value) (reflect.Value, error) {
switch C.sqlite3_value_type(v) {
case C.SQLITE_INTEGER:
return callbackArgInt64(v)
case C.SQLITE_FLOAT:
return callbackArgFloat64(v)
case C.SQLITE_TEXT:
return callbackArgString(v)
case C.SQLITE_BLOB:
return callbackArgBytes(v)
case C.SQLITE_NULL:
// Interpret NULL as a nil byte slice.
var ret []byte
return reflect.ValueOf(ret), nil
default:
panic("unreachable")
}
}
func callbackArg(typ reflect.Type) (callbackArgConverter, error) {
switch typ.Kind() {
case reflect.Interface:
if typ.NumMethod() != 0 {
return nil, errors.New("the only supported interface type is interface{}")
}
return callbackArgGeneric, nil
case reflect.Slice:
if typ.Elem().Kind() != reflect.Uint8 {
return nil, errors.New("the only supported slice type is []byte")
}
return callbackArgBytes, nil
case reflect.String:
return callbackArgString, nil
case reflect.Bool:
return callbackArgBool, nil
case reflect.Int64:
return callbackArgInt64, nil
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Int, reflect.Uint:
c := callbackArgCast{callbackArgInt64, typ}
return c.Run, nil
case reflect.Float64:
return callbackArgFloat64, nil
case reflect.Float32:
c := callbackArgCast{callbackArgFloat64, typ}
return c.Run, nil
default:
return nil, fmt.Errorf("don't know how to convert to %s", typ)
}
}
func callbackConvertArgs(argv []*C.sqlite3_value, converters []callbackArgConverter, variadic callbackArgConverter) ([]reflect.Value, error) {
var args []reflect.Value
if len(argv) < len(converters) {
return nil, fmt.Errorf("function requires at least %d arguments", len(converters))
}
for i, arg := range argv[:len(converters)] {
v, err := converters[i](arg)
if err != nil {
return nil, err
}
args = append(args, v)
}
if variadic != nil {
for _, arg := range argv[len(converters):] {
v, err := variadic(arg)
if err != nil {
return nil, err
}
args = append(args, v)
}
}
return args, nil
}
type callbackRetConverter func(*C.sqlite3_context, reflect.Value) error
func callbackRetInteger(ctx *C.sqlite3_context, v reflect.Value) error {
switch v.Type().Kind() {
case reflect.Int64:
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Int, reflect.Uint:
v = v.Convert(reflect.TypeOf(int64(0)))
case reflect.Bool:
b := v.Interface().(bool)
if b {
v = reflect.ValueOf(int64(1))
} else {
v = reflect.ValueOf(int64(0))
}
default:
return fmt.Errorf("cannot convert %s to INTEGER", v.Type())
}
C.sqlite3_result_int64(ctx, C.sqlite3_int64(v.Interface().(int64)))
return nil
}
func callbackRetFloat(ctx *C.sqlite3_context, v reflect.Value) error {
switch v.Type().Kind() {
case reflect.Float64:
case reflect.Float32:
v = v.Convert(reflect.TypeOf(float64(0)))
default:
return fmt.Errorf("cannot convert %s to FLOAT", v.Type())
}
C.sqlite3_result_double(ctx, C.double(v.Interface().(float64)))
return nil
}
func callbackRetBlob(ctx *C.sqlite3_context, v reflect.Value) error {
if v.Type().Kind() != reflect.Slice || v.Type().Elem().Kind() != reflect.Uint8 {
return fmt.Errorf("cannot convert %s to BLOB", v.Type())
}
i := v.Interface()
if i == nil || len(i.([]byte)) == 0 {
C.sqlite3_result_null(ctx)
} else {
bs := i.([]byte)
C._sqlite3_result_blob(ctx, unsafe.Pointer(&bs[0]), C.int(len(bs)))
}
return nil
}
func callbackRetText(ctx *C.sqlite3_context, v reflect.Value) error {
if v.Type().Kind() != reflect.String {
return fmt.Errorf("cannot convert %s to TEXT", v.Type())
}
C._sqlite3_result_text(ctx, C.CString(v.Interface().(string)))
return nil
}
func callbackRet(typ reflect.Type) (callbackRetConverter, error) {
switch typ.Kind() {
case reflect.Slice:
if typ.Elem().Kind() != reflect.Uint8 {
return nil, errors.New("the only supported slice type is []byte")
}
return callbackRetBlob, nil
case reflect.String:
return callbackRetText, nil
case reflect.Bool, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Int, reflect.Uint:
return callbackRetInteger, nil
case reflect.Float32, reflect.Float64:
return callbackRetFloat, nil
default:
return nil, fmt.Errorf("don't know how to convert to %s", typ)
}
}
func callbackError(ctx *C.sqlite3_context, err error) {
cstr := C.CString(err.Error())
defer C.free(unsafe.Pointer(cstr))
C.sqlite3_result_error(ctx, cstr, -1)
}
// Test support code. Tests are not allowed to import "C", so we can't
// declare any functions that use C.sqlite3_value.
func callbackSyntheticForTests(v reflect.Value, err error) callbackArgConverter {
return func(*C.sqlite3_value) (reflect.Value, error) {
return v, err
}
}

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package sqlite3
import (
"errors"
"math"
"reflect"
"testing"
)
func TestCallbackArgCast(t *testing.T) {
intConv := callbackSyntheticForTests(reflect.ValueOf(int64(math.MaxInt64)), nil)
floatConv := callbackSyntheticForTests(reflect.ValueOf(float64(math.MaxFloat64)), nil)
errConv := callbackSyntheticForTests(reflect.Value{}, errors.New("test"))
tests := []struct {
f callbackArgConverter
o reflect.Value
}{
{intConv, reflect.ValueOf(int8(-1))},
{intConv, reflect.ValueOf(int16(-1))},
{intConv, reflect.ValueOf(int32(-1))},
{intConv, reflect.ValueOf(uint8(math.MaxUint8))},
{intConv, reflect.ValueOf(uint16(math.MaxUint16))},
{intConv, reflect.ValueOf(uint32(math.MaxUint32))},
// Special case, int64->uint64 is only 1<<63 - 1, not 1<<64 - 1
{intConv, reflect.ValueOf(uint64(math.MaxInt64))},
{floatConv, reflect.ValueOf(float32(math.Inf(1)))},
}
for _, test := range tests {
conv := callbackArgCast{test.f, test.o.Type()}
val, err := conv.Run(nil)
if err != nil {
t.Errorf("Couldn't convert to %s: %s", test.o.Type(), err)
} else if !reflect.DeepEqual(val.Interface(), test.o.Interface()) {
t.Errorf("Unexpected result from converting to %s: got %v, want %v", test.o.Type(), val.Interface(), test.o.Interface())
}
}
conv := callbackArgCast{errConv, reflect.TypeOf(int8(0))}
_, err := conv.Run(nil)
if err == nil {
t.Errorf("Expected error during callbackArgCast, but got none")
}
}
func TestCallbackConverters(t *testing.T) {
tests := []struct {
v interface{}
err bool
}{
// Unfortunately, we can't tell which converter was returned,
// but we can at least check which types can be converted.
{[]byte{0}, false},
{"text", false},
{true, false},
{int8(0), false},
{int16(0), false},
{int32(0), false},
{int64(0), false},
{uint8(0), false},
{uint16(0), false},
{uint32(0), false},
{uint64(0), false},
{int(0), false},
{uint(0), false},
{float64(0), false},
{float32(0), false},
{func() {}, true},
{complex64(complex(0, 0)), true},
{complex128(complex(0, 0)), true},
{struct{}{}, true},
{map[string]string{}, true},
{[]string{}, true},
{(*int8)(nil), true},
{make(chan int), true},
}
for _, test := range tests {
_, err := callbackArg(reflect.TypeOf(test.v))
if test.err && err == nil {
t.Errorf("Expected an error when converting %s, got no error", reflect.TypeOf(test.v))
} else if !test.err && err != nil {
t.Errorf("Expected converter when converting %s, got error: %s", reflect.TypeOf(test.v), err)
}
}
for _, test := range tests {
_, err := callbackRet(reflect.TypeOf(test.v))
if test.err && err == nil {
t.Errorf("Expected an error when converting %s, got no error", reflect.TypeOf(test.v))
} else if !test.err && err != nil {
t.Errorf("Expected converter when converting %s, got error: %s", reflect.TypeOf(test.v), err)
}
}
}

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/*
** 2006 June 7
**
** The author disclaims copyright to this source code. In place of
** a legal notice, here is a blessing:
**
** May you do good and not evil.
** May you find forgiveness for yourself and forgive others.
** May you share freely, never taking more than you give.
**
*************************************************************************
** This header file defines the SQLite interface for use by
** shared libraries that want to be imported as extensions into
** an SQLite instance. Shared libraries that intend to be loaded
** as extensions by SQLite should #include this file instead of
** sqlite3.h.
*/
#ifndef _SQLITE3EXT_H_
#define _SQLITE3EXT_H_
#include "sqlite3-binding.h"
typedef struct sqlite3_api_routines sqlite3_api_routines;
/*
** The following structure holds pointers to all of the SQLite API
** routines.
**
** WARNING: In order to maintain backwards compatibility, add new
** interfaces to the end of this structure only. If you insert new
** interfaces in the middle of this structure, then older different
** versions of SQLite will not be able to load each others' shared
** libraries!
*/
struct sqlite3_api_routines {
void * (*aggregate_context)(sqlite3_context*,int nBytes);
int (*aggregate_count)(sqlite3_context*);
int (*bind_blob)(sqlite3_stmt*,int,const void*,int n,void(*)(void*));
int (*bind_double)(sqlite3_stmt*,int,double);
int (*bind_int)(sqlite3_stmt*,int,int);
int (*bind_int64)(sqlite3_stmt*,int,sqlite_int64);
int (*bind_null)(sqlite3_stmt*,int);
int (*bind_parameter_count)(sqlite3_stmt*);
int (*bind_parameter_index)(sqlite3_stmt*,const char*zName);
const char * (*bind_parameter_name)(sqlite3_stmt*,int);
int (*bind_text)(sqlite3_stmt*,int,const char*,int n,void(*)(void*));
int (*bind_text16)(sqlite3_stmt*,int,const void*,int,void(*)(void*));
int (*bind_value)(sqlite3_stmt*,int,const sqlite3_value*);
int (*busy_handler)(sqlite3*,int(*)(void*,int),void*);
int (*busy_timeout)(sqlite3*,int ms);
int (*changes)(sqlite3*);
int (*close)(sqlite3*);
int (*collation_needed)(sqlite3*,void*,void(*)(void*,sqlite3*,
int eTextRep,const char*));
int (*collation_needed16)(sqlite3*,void*,void(*)(void*,sqlite3*,
int eTextRep,const void*));
const void * (*column_blob)(sqlite3_stmt*,int iCol);
int (*column_bytes)(sqlite3_stmt*,int iCol);
int (*column_bytes16)(sqlite3_stmt*,int iCol);
int (*column_count)(sqlite3_stmt*pStmt);
const char * (*column_database_name)(sqlite3_stmt*,int);
const void * (*column_database_name16)(sqlite3_stmt*,int);
const char * (*column_decltype)(sqlite3_stmt*,int i);
const void * (*column_decltype16)(sqlite3_stmt*,int);
double (*column_double)(sqlite3_stmt*,int iCol);
int (*column_int)(sqlite3_stmt*,int iCol);
sqlite_int64 (*column_int64)(sqlite3_stmt*,int iCol);
const char * (*column_name)(sqlite3_stmt*,int);
const void * (*column_name16)(sqlite3_stmt*,int);
const char * (*column_origin_name)(sqlite3_stmt*,int);
const void * (*column_origin_name16)(sqlite3_stmt*,int);
const char * (*column_table_name)(sqlite3_stmt*,int);
const void * (*column_table_name16)(sqlite3_stmt*,int);
const unsigned char * (*column_text)(sqlite3_stmt*,int iCol);
const void * (*column_text16)(sqlite3_stmt*,int iCol);
int (*column_type)(sqlite3_stmt*,int iCol);
sqlite3_value* (*column_value)(sqlite3_stmt*,int iCol);
void * (*commit_hook)(sqlite3*,int(*)(void*),void*);
int (*complete)(const char*sql);
int (*complete16)(const void*sql);
int (*create_collation)(sqlite3*,const char*,int,void*,
int(*)(void*,int,const void*,int,const void*));
int (*create_collation16)(sqlite3*,const void*,int,void*,
int(*)(void*,int,const void*,int,const void*));
int (*create_function)(sqlite3*,const char*,int,int,void*,
void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
void (*xStep)(sqlite3_context*,int,sqlite3_value**),
void (*xFinal)(sqlite3_context*));
int (*create_function16)(sqlite3*,const void*,int,int,void*,
void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
void (*xStep)(sqlite3_context*,int,sqlite3_value**),
void (*xFinal)(sqlite3_context*));
int (*create_module)(sqlite3*,const char*,const sqlite3_module*,void*);
int (*data_count)(sqlite3_stmt*pStmt);
sqlite3 * (*db_handle)(sqlite3_stmt*);
int (*declare_vtab)(sqlite3*,const char*);
int (*enable_shared_cache)(int);
int (*errcode)(sqlite3*db);
const char * (*errmsg)(sqlite3*);
const void * (*errmsg16)(sqlite3*);
int (*exec)(sqlite3*,const char*,sqlite3_callback,void*,char**);
int (*expired)(sqlite3_stmt*);
int (*finalize)(sqlite3_stmt*pStmt);
void (*free)(void*);
void (*free_table)(char**result);
int (*get_autocommit)(sqlite3*);
void * (*get_auxdata)(sqlite3_context*,int);
int (*get_table)(sqlite3*,const char*,char***,int*,int*,char**);
int (*global_recover)(void);
void (*interruptx)(sqlite3*);
sqlite_int64 (*last_insert_rowid)(sqlite3*);
const char * (*libversion)(void);
int (*libversion_number)(void);
void *(*malloc)(int);
char * (*mprintf)(const char*,...);
int (*open)(const char*,sqlite3**);
int (*open16)(const void*,sqlite3**);
int (*prepare)(sqlite3*,const char*,int,sqlite3_stmt**,const char**);
int (*prepare16)(sqlite3*,const void*,int,sqlite3_stmt**,const void**);
void * (*profile)(sqlite3*,void(*)(void*,const char*,sqlite_uint64),void*);
void (*progress_handler)(sqlite3*,int,int(*)(void*),void*);
void *(*realloc)(void*,int);
int (*reset)(sqlite3_stmt*pStmt);
void (*result_blob)(sqlite3_context*,const void*,int,void(*)(void*));
void (*result_double)(sqlite3_context*,double);
void (*result_error)(sqlite3_context*,const char*,int);
void (*result_error16)(sqlite3_context*,const void*,int);
void (*result_int)(sqlite3_context*,int);
void (*result_int64)(sqlite3_context*,sqlite_int64);
void (*result_null)(sqlite3_context*);
void (*result_text)(sqlite3_context*,const char*,int,void(*)(void*));
void (*result_text16)(sqlite3_context*,const void*,int,void(*)(void*));
void (*result_text16be)(sqlite3_context*,const void*,int,void(*)(void*));
void (*result_text16le)(sqlite3_context*,const void*,int,void(*)(void*));
void (*result_value)(sqlite3_context*,sqlite3_value*);
void * (*rollback_hook)(sqlite3*,void(*)(void*),void*);
int (*set_authorizer)(sqlite3*,int(*)(void*,int,const char*,const char*,
const char*,const char*),void*);
void (*set_auxdata)(sqlite3_context*,int,void*,void (*)(void*));
char * (*snprintf)(int,char*,const char*,...);
int (*step)(sqlite3_stmt*);
int (*table_column_metadata)(sqlite3*,const char*,const char*,const char*,
char const**,char const**,int*,int*,int*);
void (*thread_cleanup)(void);
int (*total_changes)(sqlite3*);
void * (*trace)(sqlite3*,void(*xTrace)(void*,const char*),void*);
int (*transfer_bindings)(sqlite3_stmt*,sqlite3_stmt*);
void * (*update_hook)(sqlite3*,void(*)(void*,int ,char const*,char const*,
sqlite_int64),void*);
void * (*user_data)(sqlite3_context*);
const void * (*value_blob)(sqlite3_value*);
int (*value_bytes)(sqlite3_value*);
int (*value_bytes16)(sqlite3_value*);
double (*value_double)(sqlite3_value*);
int (*value_int)(sqlite3_value*);
sqlite_int64 (*value_int64)(sqlite3_value*);
int (*value_numeric_type)(sqlite3_value*);
const unsigned char * (*value_text)(sqlite3_value*);
const void * (*value_text16)(sqlite3_value*);
const void * (*value_text16be)(sqlite3_value*);
const void * (*value_text16le)(sqlite3_value*);
int (*value_type)(sqlite3_value*);
char *(*vmprintf)(const char*,va_list);
/* Added ??? */
int (*overload_function)(sqlite3*, const char *zFuncName, int nArg);
/* Added by 3.3.13 */
int (*prepare_v2)(sqlite3*,const char*,int,sqlite3_stmt**,const char**);
int (*prepare16_v2)(sqlite3*,const void*,int,sqlite3_stmt**,const void**);
int (*clear_bindings)(sqlite3_stmt*);
/* Added by 3.4.1 */
int (*create_module_v2)(sqlite3*,const char*,const sqlite3_module*,void*,
void (*xDestroy)(void *));
/* Added by 3.5.0 */
int (*bind_zeroblob)(sqlite3_stmt*,int,int);
int (*blob_bytes)(sqlite3_blob*);
int (*blob_close)(sqlite3_blob*);
int (*blob_open)(sqlite3*,const char*,const char*,const char*,sqlite3_int64,
int,sqlite3_blob**);
int (*blob_read)(sqlite3_blob*,void*,int,int);
int (*blob_write)(sqlite3_blob*,const void*,int,int);
int (*create_collation_v2)(sqlite3*,const char*,int,void*,
int(*)(void*,int,const void*,int,const void*),
void(*)(void*));
int (*file_control)(sqlite3*,const char*,int,void*);
sqlite3_int64 (*memory_highwater)(int);
sqlite3_int64 (*memory_used)(void);
sqlite3_mutex *(*mutex_alloc)(int);
void (*mutex_enter)(sqlite3_mutex*);
void (*mutex_free)(sqlite3_mutex*);
void (*mutex_leave)(sqlite3_mutex*);
int (*mutex_try)(sqlite3_mutex*);
int (*open_v2)(const char*,sqlite3**,int,const char*);
int (*release_memory)(int);
void (*result_error_nomem)(sqlite3_context*);
void (*result_error_toobig)(sqlite3_context*);
int (*sleep)(int);
void (*soft_heap_limit)(int);
sqlite3_vfs *(*vfs_find)(const char*);
int (*vfs_register)(sqlite3_vfs*,int);
int (*vfs_unregister)(sqlite3_vfs*);
int (*xthreadsafe)(void);
void (*result_zeroblob)(sqlite3_context*,int);
void (*result_error_code)(sqlite3_context*,int);
int (*test_control)(int, ...);
void (*randomness)(int,void*);
sqlite3 *(*context_db_handle)(sqlite3_context*);
int (*extended_result_codes)(sqlite3*,int);
int (*limit)(sqlite3*,int,int);
sqlite3_stmt *(*next_stmt)(sqlite3*,sqlite3_stmt*);
const char *(*sql)(sqlite3_stmt*);
int (*status)(int,int*,int*,int);
int (*backup_finish)(sqlite3_backup*);
sqlite3_backup *(*backup_init)(sqlite3*,const char*,sqlite3*,const char*);
int (*backup_pagecount)(sqlite3_backup*);
int (*backup_remaining)(sqlite3_backup*);
int (*backup_step)(sqlite3_backup*,int);
const char *(*compileoption_get)(int);
int (*compileoption_used)(const char*);
int (*create_function_v2)(sqlite3*,const char*,int,int,void*,
void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
void (*xStep)(sqlite3_context*,int,sqlite3_value**),
void (*xFinal)(sqlite3_context*),
void(*xDestroy)(void*));
int (*db_config)(sqlite3*,int,...);
sqlite3_mutex *(*db_mutex)(sqlite3*);
int (*db_status)(sqlite3*,int,int*,int*,int);
int (*extended_errcode)(sqlite3*);
void (*log)(int,const char*,...);
sqlite3_int64 (*soft_heap_limit64)(sqlite3_int64);
const char *(*sourceid)(void);
int (*stmt_status)(sqlite3_stmt*,int,int);
int (*strnicmp)(const char*,const char*,int);
int (*unlock_notify)(sqlite3*,void(*)(void**,int),void*);
int (*wal_autocheckpoint)(sqlite3*,int);
int (*wal_checkpoint)(sqlite3*,const char*);
void *(*wal_hook)(sqlite3*,int(*)(void*,sqlite3*,const char*,int),void*);
int (*blob_reopen)(sqlite3_blob*,sqlite3_int64);
int (*vtab_config)(sqlite3*,int op,...);
int (*vtab_on_conflict)(sqlite3*);
/* Version 3.7.16 and later */
int (*close_v2)(sqlite3*);
const char *(*db_filename)(sqlite3*,const char*);
int (*db_readonly)(sqlite3*,const char*);
int (*db_release_memory)(sqlite3*);
const char *(*errstr)(int);
int (*stmt_busy)(sqlite3_stmt*);
int (*stmt_readonly)(sqlite3_stmt*);
int (*stricmp)(const char*,const char*);
int (*uri_boolean)(const char*,const char*,int);
sqlite3_int64 (*uri_int64)(const char*,const char*,sqlite3_int64);
const char *(*uri_parameter)(const char*,const char*);
char *(*vsnprintf)(int,char*,const char*,va_list);
int (*wal_checkpoint_v2)(sqlite3*,const char*,int,int*,int*);
};
/*
** The following macros redefine the API routines so that they are
** redirected throught the global sqlite3_api structure.
**
** This header file is also used by the loadext.c source file
** (part of the main SQLite library - not an extension) so that
** it can get access to the sqlite3_api_routines structure
** definition. But the main library does not want to redefine
** the API. So the redefinition macros are only valid if the
** SQLITE_CORE macros is undefined.
*/
#ifndef SQLITE_CORE
#define sqlite3_aggregate_context sqlite3_api->aggregate_context
#ifndef SQLITE_OMIT_DEPRECATED
#define sqlite3_aggregate_count sqlite3_api->aggregate_count
#endif
#define sqlite3_bind_blob sqlite3_api->bind_blob
#define sqlite3_bind_double sqlite3_api->bind_double
#define sqlite3_bind_int sqlite3_api->bind_int
#define sqlite3_bind_int64 sqlite3_api->bind_int64
#define sqlite3_bind_null sqlite3_api->bind_null
#define sqlite3_bind_parameter_count sqlite3_api->bind_parameter_count
#define sqlite3_bind_parameter_index sqlite3_api->bind_parameter_index
#define sqlite3_bind_parameter_name sqlite3_api->bind_parameter_name
#define sqlite3_bind_text sqlite3_api->bind_text
#define sqlite3_bind_text16 sqlite3_api->bind_text16
#define sqlite3_bind_value sqlite3_api->bind_value
#define sqlite3_busy_handler sqlite3_api->busy_handler
#define sqlite3_busy_timeout sqlite3_api->busy_timeout
#define sqlite3_changes sqlite3_api->changes
#define sqlite3_close sqlite3_api->close
#define sqlite3_collation_needed sqlite3_api->collation_needed
#define sqlite3_collation_needed16 sqlite3_api->collation_needed16
#define sqlite3_column_blob sqlite3_api->column_blob
#define sqlite3_column_bytes sqlite3_api->column_bytes
#define sqlite3_column_bytes16 sqlite3_api->column_bytes16
#define sqlite3_column_count sqlite3_api->column_count
#define sqlite3_column_database_name sqlite3_api->column_database_name
#define sqlite3_column_database_name16 sqlite3_api->column_database_name16
#define sqlite3_column_decltype sqlite3_api->column_decltype
#define sqlite3_column_decltype16 sqlite3_api->column_decltype16
#define sqlite3_column_double sqlite3_api->column_double
#define sqlite3_column_int sqlite3_api->column_int
#define sqlite3_column_int64 sqlite3_api->column_int64
#define sqlite3_column_name sqlite3_api->column_name
#define sqlite3_column_name16 sqlite3_api->column_name16
#define sqlite3_column_origin_name sqlite3_api->column_origin_name
#define sqlite3_column_origin_name16 sqlite3_api->column_origin_name16
#define sqlite3_column_table_name sqlite3_api->column_table_name
#define sqlite3_column_table_name16 sqlite3_api->column_table_name16
#define sqlite3_column_text sqlite3_api->column_text
#define sqlite3_column_text16 sqlite3_api->column_text16
#define sqlite3_column_type sqlite3_api->column_type
#define sqlite3_column_value sqlite3_api->column_value
#define sqlite3_commit_hook sqlite3_api->commit_hook
#define sqlite3_complete sqlite3_api->complete
#define sqlite3_complete16 sqlite3_api->complete16
#define sqlite3_create_collation sqlite3_api->create_collation
#define sqlite3_create_collation16 sqlite3_api->create_collation16
#define sqlite3_create_function sqlite3_api->create_function
#define sqlite3_create_function16 sqlite3_api->create_function16
#define sqlite3_create_module sqlite3_api->create_module
#define sqlite3_create_module_v2 sqlite3_api->create_module_v2
#define sqlite3_data_count sqlite3_api->data_count
#define sqlite3_db_handle sqlite3_api->db_handle
#define sqlite3_declare_vtab sqlite3_api->declare_vtab
#define sqlite3_enable_shared_cache sqlite3_api->enable_shared_cache
#define sqlite3_errcode sqlite3_api->errcode
#define sqlite3_errmsg sqlite3_api->errmsg
#define sqlite3_errmsg16 sqlite3_api->errmsg16
#define sqlite3_exec sqlite3_api->exec
#ifndef SQLITE_OMIT_DEPRECATED
#define sqlite3_expired sqlite3_api->expired
#endif
#define sqlite3_finalize sqlite3_api->finalize
#define sqlite3_free sqlite3_api->free
#define sqlite3_free_table sqlite3_api->free_table
#define sqlite3_get_autocommit sqlite3_api->get_autocommit
#define sqlite3_get_auxdata sqlite3_api->get_auxdata
#define sqlite3_get_table sqlite3_api->get_table
#ifndef SQLITE_OMIT_DEPRECATED
#define sqlite3_global_recover sqlite3_api->global_recover
#endif
#define sqlite3_interrupt sqlite3_api->interruptx
#define sqlite3_last_insert_rowid sqlite3_api->last_insert_rowid
#define sqlite3_libversion sqlite3_api->libversion
#define sqlite3_libversion_number sqlite3_api->libversion_number
#define sqlite3_malloc sqlite3_api->malloc
#define sqlite3_mprintf sqlite3_api->mprintf
#define sqlite3_open sqlite3_api->open
#define sqlite3_open16 sqlite3_api->open16
#define sqlite3_prepare sqlite3_api->prepare
#define sqlite3_prepare16 sqlite3_api->prepare16
#define sqlite3_prepare_v2 sqlite3_api->prepare_v2
#define sqlite3_prepare16_v2 sqlite3_api->prepare16_v2
#define sqlite3_profile sqlite3_api->profile
#define sqlite3_progress_handler sqlite3_api->progress_handler
#define sqlite3_realloc sqlite3_api->realloc
#define sqlite3_reset sqlite3_api->reset
#define sqlite3_result_blob sqlite3_api->result_blob
#define sqlite3_result_double sqlite3_api->result_double
#define sqlite3_result_error sqlite3_api->result_error
#define sqlite3_result_error16 sqlite3_api->result_error16
#define sqlite3_result_int sqlite3_api->result_int
#define sqlite3_result_int64 sqlite3_api->result_int64
#define sqlite3_result_null sqlite3_api->result_null
#define sqlite3_result_text sqlite3_api->result_text
#define sqlite3_result_text16 sqlite3_api->result_text16
#define sqlite3_result_text16be sqlite3_api->result_text16be
#define sqlite3_result_text16le sqlite3_api->result_text16le
#define sqlite3_result_value sqlite3_api->result_value
#define sqlite3_rollback_hook sqlite3_api->rollback_hook
#define sqlite3_set_authorizer sqlite3_api->set_authorizer
#define sqlite3_set_auxdata sqlite3_api->set_auxdata
#define sqlite3_snprintf sqlite3_api->snprintf
#define sqlite3_step sqlite3_api->step
#define sqlite3_table_column_metadata sqlite3_api->table_column_metadata
#define sqlite3_thread_cleanup sqlite3_api->thread_cleanup
#define sqlite3_total_changes sqlite3_api->total_changes
#define sqlite3_trace sqlite3_api->trace
#ifndef SQLITE_OMIT_DEPRECATED
#define sqlite3_transfer_bindings sqlite3_api->transfer_bindings
#endif
#define sqlite3_update_hook sqlite3_api->update_hook
#define sqlite3_user_data sqlite3_api->user_data
#define sqlite3_value_blob sqlite3_api->value_blob
#define sqlite3_value_bytes sqlite3_api->value_bytes
#define sqlite3_value_bytes16 sqlite3_api->value_bytes16
#define sqlite3_value_double sqlite3_api->value_double
#define sqlite3_value_int sqlite3_api->value_int
#define sqlite3_value_int64 sqlite3_api->value_int64
#define sqlite3_value_numeric_type sqlite3_api->value_numeric_type
#define sqlite3_value_text sqlite3_api->value_text
#define sqlite3_value_text16 sqlite3_api->value_text16
#define sqlite3_value_text16be sqlite3_api->value_text16be
#define sqlite3_value_text16le sqlite3_api->value_text16le
#define sqlite3_value_type sqlite3_api->value_type
#define sqlite3_vmprintf sqlite3_api->vmprintf
#define sqlite3_overload_function sqlite3_api->overload_function
#define sqlite3_prepare_v2 sqlite3_api->prepare_v2
#define sqlite3_prepare16_v2 sqlite3_api->prepare16_v2
#define sqlite3_clear_bindings sqlite3_api->clear_bindings
#define sqlite3_bind_zeroblob sqlite3_api->bind_zeroblob
#define sqlite3_blob_bytes sqlite3_api->blob_bytes
#define sqlite3_blob_close sqlite3_api->blob_close
#define sqlite3_blob_open sqlite3_api->blob_open
#define sqlite3_blob_read sqlite3_api->blob_read
#define sqlite3_blob_write sqlite3_api->blob_write
#define sqlite3_create_collation_v2 sqlite3_api->create_collation_v2
#define sqlite3_file_control sqlite3_api->file_control
#define sqlite3_memory_highwater sqlite3_api->memory_highwater
#define sqlite3_memory_used sqlite3_api->memory_used
#define sqlite3_mutex_alloc sqlite3_api->mutex_alloc
#define sqlite3_mutex_enter sqlite3_api->mutex_enter
#define sqlite3_mutex_free sqlite3_api->mutex_free
#define sqlite3_mutex_leave sqlite3_api->mutex_leave
#define sqlite3_mutex_try sqlite3_api->mutex_try
#define sqlite3_open_v2 sqlite3_api->open_v2
#define sqlite3_release_memory sqlite3_api->release_memory
#define sqlite3_result_error_nomem sqlite3_api->result_error_nomem
#define sqlite3_result_error_toobig sqlite3_api->result_error_toobig
#define sqlite3_sleep sqlite3_api->sleep
#define sqlite3_soft_heap_limit sqlite3_api->soft_heap_limit
#define sqlite3_vfs_find sqlite3_api->vfs_find
#define sqlite3_vfs_register sqlite3_api->vfs_register
#define sqlite3_vfs_unregister sqlite3_api->vfs_unregister
#define sqlite3_threadsafe sqlite3_api->xthreadsafe
#define sqlite3_result_zeroblob sqlite3_api->result_zeroblob
#define sqlite3_result_error_code sqlite3_api->result_error_code
#define sqlite3_test_control sqlite3_api->test_control
#define sqlite3_randomness sqlite3_api->randomness
#define sqlite3_context_db_handle sqlite3_api->context_db_handle
#define sqlite3_extended_result_codes sqlite3_api->extended_result_codes
#define sqlite3_limit sqlite3_api->limit
#define sqlite3_next_stmt sqlite3_api->next_stmt
#define sqlite3_sql sqlite3_api->sql
#define sqlite3_status sqlite3_api->status
#define sqlite3_backup_finish sqlite3_api->backup_finish
#define sqlite3_backup_init sqlite3_api->backup_init
#define sqlite3_backup_pagecount sqlite3_api->backup_pagecount
#define sqlite3_backup_remaining sqlite3_api->backup_remaining
#define sqlite3_backup_step sqlite3_api->backup_step
#define sqlite3_compileoption_get sqlite3_api->compileoption_get
#define sqlite3_compileoption_used sqlite3_api->compileoption_used
#define sqlite3_create_function_v2 sqlite3_api->create_function_v2
#define sqlite3_db_config sqlite3_api->db_config
#define sqlite3_db_mutex sqlite3_api->db_mutex
#define sqlite3_db_status sqlite3_api->db_status
#define sqlite3_extended_errcode sqlite3_api->extended_errcode
#define sqlite3_log sqlite3_api->log
#define sqlite3_soft_heap_limit64 sqlite3_api->soft_heap_limit64
#define sqlite3_sourceid sqlite3_api->sourceid
#define sqlite3_stmt_status sqlite3_api->stmt_status
#define sqlite3_strnicmp sqlite3_api->strnicmp
#define sqlite3_unlock_notify sqlite3_api->unlock_notify
#define sqlite3_wal_autocheckpoint sqlite3_api->wal_autocheckpoint
#define sqlite3_wal_checkpoint sqlite3_api->wal_checkpoint
#define sqlite3_wal_hook sqlite3_api->wal_hook
#define sqlite3_blob_reopen sqlite3_api->blob_reopen
#define sqlite3_vtab_config sqlite3_api->vtab_config
#define sqlite3_vtab_on_conflict sqlite3_api->vtab_on_conflict
/* Version 3.7.16 and later */
#define sqlite3_close_v2 sqlite3_api->close_v2
#define sqlite3_db_filename sqlite3_api->db_filename
#define sqlite3_db_readonly sqlite3_api->db_readonly
#define sqlite3_db_release_memory sqlite3_api->db_release_memory
#define sqlite3_errstr sqlite3_api->errstr
#define sqlite3_stmt_busy sqlite3_api->stmt_busy
#define sqlite3_stmt_readonly sqlite3_api->stmt_readonly
#define sqlite3_stricmp sqlite3_api->stricmp
#define sqlite3_uri_boolean sqlite3_api->uri_boolean
#define sqlite3_uri_int64 sqlite3_api->uri_int64
#define sqlite3_uri_parameter sqlite3_api->uri_parameter
#define sqlite3_uri_vsnprintf sqlite3_api->vsnprintf
#define sqlite3_wal_checkpoint_v2 sqlite3_api->wal_checkpoint_v2
#endif /* SQLITE_CORE */
#ifndef SQLITE_CORE
/* This case when the file really is being compiled as a loadable
** extension */
# define SQLITE_EXTENSION_INIT1 const sqlite3_api_routines *sqlite3_api=0;
# define SQLITE_EXTENSION_INIT2(v) sqlite3_api=v;
# define SQLITE_EXTENSION_INIT3 \
extern const sqlite3_api_routines *sqlite3_api;
#else
/* This case when the file is being statically linked into the
** application */
# define SQLITE_EXTENSION_INIT1 /*no-op*/
# define SQLITE_EXTENSION_INIT2(v) (void)v; /* unused parameter */
# define SQLITE_EXTENSION_INIT3 /*no-op*/
#endif
#endif /* _SQLITE3EXT_H_ */

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/*
Package sqlite3 provides interface to SQLite3 databases.
This works as driver for database/sql.
Installation
go get github.com/mattn/go-sqlite3
Supported Types
Currently, go-sqlite3 support following data types.
+------------------------------+
|go | sqlite3 |
|----------|-------------------|
|nil | null |
|int | integer |
|int64 | integer |
|float64 | float |
|bool | integer |
|[]byte | blob |
|string | text |
|time.Time | timestamp/datetime|
+------------------------------+
SQLite3 Extension
You can write your own extension module for sqlite3. For example, below is a
extension for Regexp matcher operation.
#include <pcre.h>
#include <string.h>
#include <stdio.h>
#include <sqlite3ext.h>
SQLITE_EXTENSION_INIT1
static void regexp_func(sqlite3_context *context, int argc, sqlite3_value **argv) {
if (argc >= 2) {
const char *target = (const char *)sqlite3_value_text(argv[1]);
const char *pattern = (const char *)sqlite3_value_text(argv[0]);
const char* errstr = NULL;
int erroff = 0;
int vec[500];
int n, rc;
pcre* re = pcre_compile(pattern, 0, &errstr, &erroff, NULL);
rc = pcre_exec(re, NULL, target, strlen(target), 0, 0, vec, 500);
if (rc <= 0) {
sqlite3_result_error(context, errstr, 0);
return;
}
sqlite3_result_int(context, 1);
}
}
#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_extension_init(sqlite3 *db, char **errmsg,
const sqlite3_api_routines *api) {
SQLITE_EXTENSION_INIT2(api);
return sqlite3_create_function(db, "regexp", 2, SQLITE_UTF8,
(void*)db, regexp_func, NULL, NULL);
}
It need to build as so/dll shared library. And you need to register
extension module like below.
sql.Register("sqlite3_with_extensions",
&sqlite3.SQLiteDriver{
Extensions: []string{
"sqlite3_mod_regexp",
},
})
Then, you can use this extension.
rows, err := db.Query("select text from mytable where name regexp '^golang'")
Connection Hook
You can hook and inject your codes when connection established. database/sql
doesn't provide the way to get native go-sqlite3 interfaces. So if you want,
you need to hook ConnectHook and get the SQLiteConn.
sql.Register("sqlite3_with_hook_example",
&sqlite3.SQLiteDriver{
ConnectHook: func(conn *sqlite3.SQLiteConn) error {
sqlite3conn = append(sqlite3conn, conn)
return nil
},
})
Go SQlite3 Extensions
If you want to register Go functions as SQLite extension functions,
call RegisterFunction from ConnectHook.
regex = func(re, s string) (bool, error) {
return regexp.MatchString(re, s)
}
sql.Register("sqlite3_with_go_func",
&sqlite3.SQLiteDriver{
ConnectHook: func(conn *sqlite3.SQLiteConn) error {
return conn.RegisterFunc("regex", regex, true)
},
})
See the documentation of RegisterFunc for more details.
*/
package sqlite3

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// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package sqlite3
import "C"
type ErrNo int
const ErrNoMask C.int = 0xff
type ErrNoExtended int
type Error struct {
Code ErrNo /* The error code returned by SQLite */
ExtendedCode ErrNoExtended /* The extended error code returned by SQLite */
err string /* The error string returned by sqlite3_errmsg(),
this usually contains more specific details. */
}
// result codes from http://www.sqlite.org/c3ref/c_abort.html
var (
ErrError = ErrNo(1) /* SQL error or missing database */
ErrInternal = ErrNo(2) /* Internal logic error in SQLite */
ErrPerm = ErrNo(3) /* Access permission denied */
ErrAbort = ErrNo(4) /* Callback routine requested an abort */
ErrBusy = ErrNo(5) /* The database file is locked */
ErrLocked = ErrNo(6) /* A table in the database is locked */
ErrNomem = ErrNo(7) /* A malloc() failed */
ErrReadonly = ErrNo(8) /* Attempt to write a readonly database */
ErrInterrupt = ErrNo(9) /* Operation terminated by sqlite3_interrupt() */
ErrIoErr = ErrNo(10) /* Some kind of disk I/O error occurred */
ErrCorrupt = ErrNo(11) /* The database disk image is malformed */
ErrNotFound = ErrNo(12) /* Unknown opcode in sqlite3_file_control() */
ErrFull = ErrNo(13) /* Insertion failed because database is full */
ErrCantOpen = ErrNo(14) /* Unable to open the database file */
ErrProtocol = ErrNo(15) /* Database lock protocol error */
ErrEmpty = ErrNo(16) /* Database is empty */
ErrSchema = ErrNo(17) /* The database schema changed */
ErrTooBig = ErrNo(18) /* String or BLOB exceeds size limit */
ErrConstraint = ErrNo(19) /* Abort due to constraint violation */
ErrMismatch = ErrNo(20) /* Data type mismatch */
ErrMisuse = ErrNo(21) /* Library used incorrectly */
ErrNoLFS = ErrNo(22) /* Uses OS features not supported on host */
ErrAuth = ErrNo(23) /* Authorization denied */
ErrFormat = ErrNo(24) /* Auxiliary database format error */
ErrRange = ErrNo(25) /* 2nd parameter to sqlite3_bind out of range */
ErrNotADB = ErrNo(26) /* File opened that is not a database file */
ErrNotice = ErrNo(27) /* Notifications from sqlite3_log() */
ErrWarning = ErrNo(28) /* Warnings from sqlite3_log() */
)
func (err ErrNo) Error() string {
return Error{Code: err}.Error()
}
func (err ErrNo) Extend(by int) ErrNoExtended {
return ErrNoExtended(int(err) | (by << 8))
}
func (err ErrNoExtended) Error() string {
return Error{Code: ErrNo(C.int(err) & ErrNoMask), ExtendedCode: err}.Error()
}
func (err Error) Error() string {
if err.err != "" {
return err.err
}
return errorString(err)
}
// result codes from http://www.sqlite.org/c3ref/c_abort_rollback.html
var (
ErrIoErrRead = ErrIoErr.Extend(1)
ErrIoErrShortRead = ErrIoErr.Extend(2)
ErrIoErrWrite = ErrIoErr.Extend(3)
ErrIoErrFsync = ErrIoErr.Extend(4)
ErrIoErrDirFsync = ErrIoErr.Extend(5)
ErrIoErrTruncate = ErrIoErr.Extend(6)
ErrIoErrFstat = ErrIoErr.Extend(7)
ErrIoErrUnlock = ErrIoErr.Extend(8)
ErrIoErrRDlock = ErrIoErr.Extend(9)
ErrIoErrDelete = ErrIoErr.Extend(10)
ErrIoErrBlocked = ErrIoErr.Extend(11)
ErrIoErrNoMem = ErrIoErr.Extend(12)
ErrIoErrAccess = ErrIoErr.Extend(13)
ErrIoErrCheckReservedLock = ErrIoErr.Extend(14)
ErrIoErrLock = ErrIoErr.Extend(15)
ErrIoErrClose = ErrIoErr.Extend(16)
ErrIoErrDirClose = ErrIoErr.Extend(17)
ErrIoErrSHMOpen = ErrIoErr.Extend(18)
ErrIoErrSHMSize = ErrIoErr.Extend(19)
ErrIoErrSHMLock = ErrIoErr.Extend(20)
ErrIoErrSHMMap = ErrIoErr.Extend(21)
ErrIoErrSeek = ErrIoErr.Extend(22)
ErrIoErrDeleteNoent = ErrIoErr.Extend(23)
ErrIoErrMMap = ErrIoErr.Extend(24)
ErrIoErrGetTempPath = ErrIoErr.Extend(25)
ErrIoErrConvPath = ErrIoErr.Extend(26)
ErrLockedSharedCache = ErrLocked.Extend(1)
ErrBusyRecovery = ErrBusy.Extend(1)
ErrBusySnapshot = ErrBusy.Extend(2)
ErrCantOpenNoTempDir = ErrCantOpen.Extend(1)
ErrCantOpenIsDir = ErrCantOpen.Extend(2)
ErrCantOpenFullPath = ErrCantOpen.Extend(3)
ErrCantOpenConvPath = ErrCantOpen.Extend(4)
ErrCorruptVTab = ErrCorrupt.Extend(1)
ErrReadonlyRecovery = ErrReadonly.Extend(1)
ErrReadonlyCantLock = ErrReadonly.Extend(2)
ErrReadonlyRollback = ErrReadonly.Extend(3)
ErrReadonlyDbMoved = ErrReadonly.Extend(4)
ErrAbortRollback = ErrAbort.Extend(2)
ErrConstraintCheck = ErrConstraint.Extend(1)
ErrConstraintCommitHook = ErrConstraint.Extend(2)
ErrConstraintForeignKey = ErrConstraint.Extend(3)
ErrConstraintFunction = ErrConstraint.Extend(4)
ErrConstraintNotNull = ErrConstraint.Extend(5)
ErrConstraintPrimaryKey = ErrConstraint.Extend(6)
ErrConstraintTrigger = ErrConstraint.Extend(7)
ErrConstraintUnique = ErrConstraint.Extend(8)
ErrConstraintVTab = ErrConstraint.Extend(9)
ErrConstraintRowId = ErrConstraint.Extend(10)
ErrNoticeRecoverWAL = ErrNotice.Extend(1)
ErrNoticeRecoverRollback = ErrNotice.Extend(2)
ErrWarningAutoIndex = ErrWarning.Extend(1)
)

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// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package sqlite3
import (
"database/sql"
"io/ioutil"
"os"
"path"
"testing"
)
func TestSimpleError(t *testing.T) {
e := ErrError.Error()
if e != "SQL logic error or missing database" {
t.Error("wrong error code:" + e)
}
}
func TestCorruptDbErrors(t *testing.T) {
dirName, err := ioutil.TempDir("", "sqlite3")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dirName)
dbFileName := path.Join(dirName, "test.db")
f, err := os.Create(dbFileName)
if err != nil {
t.Error(err)
}
f.Write([]byte{1, 2, 3, 4, 5})
f.Close()
db, err := sql.Open("sqlite3", dbFileName)
if err == nil {
_, err = db.Exec("drop table foo")
}
sqliteErr := err.(Error)
if sqliteErr.Code != ErrNotADB {
t.Error("wrong error code for corrupted DB")
}
if err.Error() == "" {
t.Error("wrong error string for corrupted DB")
}
db.Close()
}
func TestSqlLogicErrors(t *testing.T) {
dirName, err := ioutil.TempDir("", "sqlite3")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dirName)
dbFileName := path.Join(dirName, "test.db")
db, err := sql.Open("sqlite3", dbFileName)
if err != nil {
t.Error(err)
}
defer db.Close()
_, err = db.Exec("CREATE TABLE Foo (id INTEGER PRIMARY KEY)")
if err != nil {
t.Error(err)
}
const expectedErr = "table Foo already exists"
_, err = db.Exec("CREATE TABLE Foo (id INTEGER PRIMARY KEY)")
if err.Error() != expectedErr {
t.Errorf("Unexpected error: %s, expected %s", err.Error(), expectedErr)
}
}
func TestExtendedErrorCodes_ForeignKey(t *testing.T) {
dirName, err := ioutil.TempDir("", "sqlite3-err")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dirName)
dbFileName := path.Join(dirName, "test.db")
db, err := sql.Open("sqlite3", dbFileName)
if err != nil {
t.Error(err)
}
defer db.Close()
_, err = db.Exec("PRAGMA foreign_keys=ON;")
if err != nil {
t.Errorf("PRAGMA foreign_keys=ON: %v", err)
}
_, err = db.Exec(`CREATE TABLE Foo (
id INTEGER PRIMARY KEY AUTOINCREMENT,
value INTEGER NOT NULL,
ref INTEGER NULL REFERENCES Foo (id),
UNIQUE(value)
);`)
if err != nil {
t.Error(err)
}
_, err = db.Exec("INSERT INTO Foo (ref, value) VALUES (100, 100);")
if err == nil {
t.Error("No error!")
} else {
sqliteErr := err.(Error)
if sqliteErr.Code != ErrConstraint {
t.Errorf("Wrong basic error code: %d != %d",
sqliteErr.Code, ErrConstraint)
}
if sqliteErr.ExtendedCode != ErrConstraintForeignKey {
t.Errorf("Wrong extended error code: %d != %d",
sqliteErr.ExtendedCode, ErrConstraintForeignKey)
}
}
}
func TestExtendedErrorCodes_NotNull(t *testing.T) {
dirName, err := ioutil.TempDir("", "sqlite3-err")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dirName)
dbFileName := path.Join(dirName, "test.db")
db, err := sql.Open("sqlite3", dbFileName)
if err != nil {
t.Error(err)
}
defer db.Close()
_, err = db.Exec("PRAGMA foreign_keys=ON;")
if err != nil {
t.Errorf("PRAGMA foreign_keys=ON: %v", err)
}
_, err = db.Exec(`CREATE TABLE Foo (
id INTEGER PRIMARY KEY AUTOINCREMENT,
value INTEGER NOT NULL,
ref INTEGER NULL REFERENCES Foo (id),
UNIQUE(value)
);`)
if err != nil {
t.Error(err)
}
res, err := db.Exec("INSERT INTO Foo (value) VALUES (100);")
if err != nil {
t.Fatalf("Creating first row: %v", err)
}
id, err := res.LastInsertId()
if err != nil {
t.Fatalf("Retrieving last insert id: %v", err)
}
_, err = db.Exec("INSERT INTO Foo (ref) VALUES (?);", id)
if err == nil {
t.Error("No error!")
} else {
sqliteErr := err.(Error)
if sqliteErr.Code != ErrConstraint {
t.Errorf("Wrong basic error code: %d != %d",
sqliteErr.Code, ErrConstraint)
}
if sqliteErr.ExtendedCode != ErrConstraintNotNull {
t.Errorf("Wrong extended error code: %d != %d",
sqliteErr.ExtendedCode, ErrConstraintNotNull)
}
}
}
func TestExtendedErrorCodes_Unique(t *testing.T) {
dirName, err := ioutil.TempDir("", "sqlite3-err")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dirName)
dbFileName := path.Join(dirName, "test.db")
db, err := sql.Open("sqlite3", dbFileName)
if err != nil {
t.Error(err)
}
defer db.Close()
_, err = db.Exec("PRAGMA foreign_keys=ON;")
if err != nil {
t.Errorf("PRAGMA foreign_keys=ON: %v", err)
}
_, err = db.Exec(`CREATE TABLE Foo (
id INTEGER PRIMARY KEY AUTOINCREMENT,
value INTEGER NOT NULL,
ref INTEGER NULL REFERENCES Foo (id),
UNIQUE(value)
);`)
if err != nil {
t.Error(err)
}
res, err := db.Exec("INSERT INTO Foo (value) VALUES (100);")
if err != nil {
t.Fatalf("Creating first row: %v", err)
}
id, err := res.LastInsertId()
if err != nil {
t.Fatalf("Retrieving last insert id: %v", err)
}
_, err = db.Exec("INSERT INTO Foo (ref, value) VALUES (?, 100);", id)
if err == nil {
t.Error("No error!")
} else {
sqliteErr := err.(Error)
if sqliteErr.Code != ErrConstraint {
t.Errorf("Wrong basic error code: %d != %d",
sqliteErr.Code, ErrConstraint)
}
if sqliteErr.ExtendedCode != ErrConstraintUnique {
t.Errorf("Wrong extended error code: %d != %d",
sqliteErr.ExtendedCode, ErrConstraintUnique)
}
extended := sqliteErr.Code.Extend(3).Error()
expected := "constraint failed"
if extended != expected {
t.Errorf("Wrong basic error code: %q != %q",
extended, expected)
}
}
}

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#ifndef USE_LIBSQLITE3
# include "code/sqlite3-binding.c"
#endif

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#ifndef USE_LIBSQLITE3
#include "code/sqlite3-binding.h"
#else
#include <sqlite3.h>
#endif

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// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package sqlite3
/*
#cgo CFLAGS: -std=gnu99
#cgo CFLAGS: -DSQLITE_ENABLE_RTREE -DSQLITE_THREADSAFE
#cgo CFLAGS: -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DSQLITE_ENABLE_FTS4_UNICODE61
#include <sqlite3-binding.h>
#include <stdlib.h>
#include <string.h>
#ifdef __CYGWIN__
# include <errno.h>
#endif
#ifndef SQLITE_OPEN_READWRITE
# define SQLITE_OPEN_READWRITE 0
#endif
#ifndef SQLITE_OPEN_FULLMUTEX
# define SQLITE_OPEN_FULLMUTEX 0
#endif
static int
_sqlite3_open_v2(const char *filename, sqlite3 **ppDb, int flags, const char *zVfs) {
#ifdef SQLITE_OPEN_URI
return sqlite3_open_v2(filename, ppDb, flags | SQLITE_OPEN_URI, zVfs);
#else
return sqlite3_open_v2(filename, ppDb, flags, zVfs);
#endif
}
static int
_sqlite3_bind_text(sqlite3_stmt *stmt, int n, char *p, int np) {
return sqlite3_bind_text(stmt, n, p, np, SQLITE_TRANSIENT);
}
static int
_sqlite3_bind_blob(sqlite3_stmt *stmt, int n, void *p, int np) {
return sqlite3_bind_blob(stmt, n, p, np, SQLITE_TRANSIENT);
}
#include <stdio.h>
#include <stdint.h>
static int
_sqlite3_exec(sqlite3* db, const char* pcmd, long long* rowid, long long* changes)
{
int rv = sqlite3_exec(db, pcmd, 0, 0, 0);
*rowid = (long long) sqlite3_last_insert_rowid(db);
*changes = (long long) sqlite3_changes(db);
return rv;
}
static int
_sqlite3_step(sqlite3_stmt* stmt, long long* rowid, long long* changes)
{
int rv = sqlite3_step(stmt);
sqlite3* db = sqlite3_db_handle(stmt);
*rowid = (long long) sqlite3_last_insert_rowid(db);
*changes = (long long) sqlite3_changes(db);
return rv;
}
void _sqlite3_result_text(sqlite3_context* ctx, const char* s) {
sqlite3_result_text(ctx, s, -1, &free);
}
void _sqlite3_result_blob(sqlite3_context* ctx, const void* b, int l) {
sqlite3_result_blob(ctx, b, l, SQLITE_TRANSIENT);
}
void callbackTrampoline(sqlite3_context*, int, sqlite3_value**);
void stepTrampoline(sqlite3_context*, int, sqlite3_value**);
void doneTrampoline(sqlite3_context*);
*/
import "C"
import (
"database/sql"
"database/sql/driver"
"errors"
"fmt"
"io"
"net/url"
"reflect"
"runtime"
"strconv"
"strings"
"time"
"unsafe"
)
// Timestamp formats understood by both this module and SQLite.
// The first format in the slice will be used when saving time values
// into the database. When parsing a string from a timestamp or
// datetime column, the formats are tried in order.
var SQLiteTimestampFormats = []string{
"2006-01-02 15:04:05.999999999",
"2006-01-02T15:04:05.999999999",
"2006-01-02 15:04:05",
"2006-01-02T15:04:05",
"2006-01-02 15:04",
"2006-01-02T15:04",
"2006-01-02",
"2006-01-02 15:04:05-07:00",
}
func init() {
sql.Register("sqlite3", &SQLiteDriver{})
}
// Return SQLite library Version information.
func Version() (libVersion string, libVersionNumber int, sourceId string) {
libVersion = C.GoString(C.sqlite3_libversion())
libVersionNumber = int(C.sqlite3_libversion_number())
sourceId = C.GoString(C.sqlite3_sourceid())
return libVersion, libVersionNumber, sourceId
}
// Driver struct.
type SQLiteDriver struct {
Extensions []string
ConnectHook func(*SQLiteConn) error
}
// Conn struct.
type SQLiteConn struct {
db *C.sqlite3
loc *time.Location
txlock string
funcs []*functionInfo
aggregators []*aggInfo
}
// Tx struct.
type SQLiteTx struct {
c *SQLiteConn
}
// Stmt struct.
type SQLiteStmt struct {
c *SQLiteConn
s *C.sqlite3_stmt
nv int
nn []string
t string
closed bool
cls bool
}
// Result struct.
type SQLiteResult struct {
id int64
changes int64
}
// Rows struct.
type SQLiteRows struct {
s *SQLiteStmt
nc int
cols []string
decltype []string
cls bool
}
type functionInfo struct {
f reflect.Value
argConverters []callbackArgConverter
variadicConverter callbackArgConverter
retConverter callbackRetConverter
}
func (fi *functionInfo) Call(ctx *C.sqlite3_context, argv []*C.sqlite3_value) {
args, err := callbackConvertArgs(argv, fi.argConverters, fi.variadicConverter)
if err != nil {
callbackError(ctx, err)
return
}
ret := fi.f.Call(args)
if len(ret) == 2 && ret[1].Interface() != nil {
callbackError(ctx, ret[1].Interface().(error))
return
}
err = fi.retConverter(ctx, ret[0])
if err != nil {
callbackError(ctx, err)
return
}
}
type aggInfo struct {
constructor reflect.Value
// Active aggregator objects for aggregations in flight. The
// aggregators are indexed by a counter stored in the aggregation
// user data space provided by sqlite.
active map[int64]reflect.Value
next int64
stepArgConverters []callbackArgConverter
stepVariadicConverter callbackArgConverter
doneRetConverter callbackRetConverter
}
func (ai *aggInfo) agg(ctx *C.sqlite3_context) (int64, reflect.Value, error) {
aggIdx := (*int64)(C.sqlite3_aggregate_context(ctx, C.int(8)))
if *aggIdx == 0 {
*aggIdx = ai.next
ret := ai.constructor.Call(nil)
if len(ret) == 2 && ret[1].Interface() != nil {
return 0, reflect.Value{}, ret[1].Interface().(error)
}
if ret[0].IsNil() {
return 0, reflect.Value{}, errors.New("aggregator constructor returned nil state")
}
ai.next++
ai.active[*aggIdx] = ret[0]
}
return *aggIdx, ai.active[*aggIdx], nil
}
func (ai *aggInfo) Step(ctx *C.sqlite3_context, argv []*C.sqlite3_value) {
_, agg, err := ai.agg(ctx)
if err != nil {
callbackError(ctx, err)
return
}
args, err := callbackConvertArgs(argv, ai.stepArgConverters, ai.stepVariadicConverter)
if err != nil {
callbackError(ctx, err)
return
}
ret := agg.MethodByName("Step").Call(args)
if len(ret) == 1 && ret[0].Interface() != nil {
callbackError(ctx, ret[0].Interface().(error))
return
}
}
func (ai *aggInfo) Done(ctx *C.sqlite3_context) {
idx, agg, err := ai.agg(ctx)
if err != nil {
callbackError(ctx, err)
return
}
defer func() { delete(ai.active, idx) }()
ret := agg.MethodByName("Done").Call(nil)
if len(ret) == 2 && ret[1].Interface() != nil {
callbackError(ctx, ret[1].Interface().(error))
return
}
err = ai.doneRetConverter(ctx, ret[0])
if err != nil {
callbackError(ctx, err)
return
}
}
// Commit transaction.
func (tx *SQLiteTx) Commit() error {
_, err := tx.c.exec("COMMIT")
return err
}
// Rollback transaction.
func (tx *SQLiteTx) Rollback() error {
_, err := tx.c.exec("ROLLBACK")
return err
}
// RegisterFunc makes a Go function available as a SQLite function.
//
// The Go function can have arguments of the following types: any
// numeric type except complex, bool, []byte, string and
// interface{}. interface{} arguments are given the direct translation
// of the SQLite data type: int64 for INTEGER, float64 for FLOAT,
// []byte for BLOB, string for TEXT.
//
// The function can additionally be variadic, as long as the type of
// the variadic argument is one of the above.
//
// If pure is true. SQLite will assume that the function's return
// value depends only on its inputs, and make more aggressive
// optimizations in its queries.
//
// See _example/go_custom_funcs for a detailed example.
func (c *SQLiteConn) RegisterFunc(name string, impl interface{}, pure bool) error {
var fi functionInfo
fi.f = reflect.ValueOf(impl)
t := fi.f.Type()
if t.Kind() != reflect.Func {
return errors.New("Non-function passed to RegisterFunc")
}
if t.NumOut() != 1 && t.NumOut() != 2 {
return errors.New("SQLite functions must return 1 or 2 values")
}
if t.NumOut() == 2 && !t.Out(1).Implements(reflect.TypeOf((*error)(nil)).Elem()) {
return errors.New("Second return value of SQLite function must be error")
}
numArgs := t.NumIn()
if t.IsVariadic() {
numArgs--
}
for i := 0; i < numArgs; i++ {
conv, err := callbackArg(t.In(i))
if err != nil {
return err
}
fi.argConverters = append(fi.argConverters, conv)
}
if t.IsVariadic() {
conv, err := callbackArg(t.In(numArgs).Elem())
if err != nil {
return err
}
fi.variadicConverter = conv
// Pass -1 to sqlite so that it allows any number of
// arguments. The call helper verifies that the minimum number
// of arguments is present for variadic functions.
numArgs = -1
}
conv, err := callbackRet(t.Out(0))
if err != nil {
return err
}
fi.retConverter = conv
// fi must outlast the database connection, or we'll have dangling pointers.
c.funcs = append(c.funcs, &fi)
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
opts := C.SQLITE_UTF8
if pure {
opts |= C.SQLITE_DETERMINISTIC
}
rv := C.sqlite3_create_function(c.db, cname, C.int(numArgs), C.int(opts), unsafe.Pointer(&fi), (*[0]byte)(unsafe.Pointer(C.callbackTrampoline)), nil, nil)
if rv != C.SQLITE_OK {
return c.lastError()
}
return nil
}
// RegisterAggregator makes a Go type available as a SQLite aggregation function.
//
// Because aggregation is incremental, it's implemented in Go with a
// type that has 2 methods: func Step(values) accumulates one row of
// data into the accumulator, and func Done() ret finalizes and
// returns the aggregate value. "values" and "ret" may be any type
// supported by RegisterFunc.
//
// RegisterAggregator takes as implementation a constructor function
// that constructs an instance of the aggregator type each time an
// aggregation begins. The constructor must return a pointer to a
// type, or an interface that implements Step() and Done().
//
// The constructor function and the Step/Done methods may optionally
// return an error in addition to their other return values.
//
// See _example/go_custom_funcs for a detailed example.
func (c *SQLiteConn) RegisterAggregator(name string, impl interface{}, pure bool) error {
var ai aggInfo
ai.constructor = reflect.ValueOf(impl)
t := ai.constructor.Type()
if t.Kind() != reflect.Func {
return errors.New("non-function passed to RegisterAggregator")
}
if t.NumOut() != 1 && t.NumOut() != 2 {
return errors.New("SQLite aggregator constructors must return 1 or 2 values")
}
if t.NumOut() == 2 && !t.Out(1).Implements(reflect.TypeOf((*error)(nil)).Elem()) {
return errors.New("Second return value of SQLite function must be error")
}
if t.NumIn() != 0 {
return errors.New("SQLite aggregator constructors must not have arguments")
}
agg := t.Out(0)
switch agg.Kind() {
case reflect.Ptr, reflect.Interface:
default:
return errors.New("SQlite aggregator constructor must return a pointer object")
}
stepFn, found := agg.MethodByName("Step")
if !found {
return errors.New("SQlite aggregator doesn't have a Step() function")
}
step := stepFn.Type
if step.NumOut() != 0 && step.NumOut() != 1 {
return errors.New("SQlite aggregator Step() function must return 0 or 1 values")
}
if step.NumOut() == 1 && !step.Out(0).Implements(reflect.TypeOf((*error)(nil)).Elem()) {
return errors.New("type of SQlite aggregator Step() return value must be error")
}
stepNArgs := step.NumIn()
start := 0
if agg.Kind() == reflect.Ptr {
// Skip over the method receiver
stepNArgs--
start++
}
if step.IsVariadic() {
stepNArgs--
}
for i := start; i < start+stepNArgs; i++ {
conv, err := callbackArg(step.In(i))
if err != nil {
return err
}
ai.stepArgConverters = append(ai.stepArgConverters, conv)
}
if step.IsVariadic() {
conv, err := callbackArg(t.In(start + stepNArgs).Elem())
if err != nil {
return err
}
ai.stepVariadicConverter = conv
// Pass -1 to sqlite so that it allows any number of
// arguments. The call helper verifies that the minimum number
// of arguments is present for variadic functions.
stepNArgs = -1
}
doneFn, found := agg.MethodByName("Done")
if !found {
return errors.New("SQlite aggregator doesn't have a Done() function")
}
done := doneFn.Type
doneNArgs := done.NumIn()
if agg.Kind() == reflect.Ptr {
// Skip over the method receiver
doneNArgs--
}
if doneNArgs != 0 {
return errors.New("SQlite aggregator Done() function must have no arguments")
}
if done.NumOut() != 1 && done.NumOut() != 2 {
return errors.New("SQLite aggregator Done() function must return 1 or 2 values")
}
if done.NumOut() == 2 && !done.Out(1).Implements(reflect.TypeOf((*error)(nil)).Elem()) {
return errors.New("second return value of SQLite aggregator Done() function must be error")
}
conv, err := callbackRet(done.Out(0))
if err != nil {
return err
}
ai.doneRetConverter = conv
ai.active = make(map[int64]reflect.Value)
ai.next = 1
// ai must outlast the database connection, or we'll have dangling pointers.
c.aggregators = append(c.aggregators, &ai)
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
opts := C.SQLITE_UTF8
if pure {
opts |= C.SQLITE_DETERMINISTIC
}
rv := C.sqlite3_create_function(c.db, cname, C.int(stepNArgs), C.int(opts), unsafe.Pointer(&ai), nil, (*[0]byte)(unsafe.Pointer(C.stepTrampoline)), (*[0]byte)(unsafe.Pointer(C.doneTrampoline)))
if rv != C.SQLITE_OK {
return c.lastError()
}
return nil
}
// AutoCommit return which currently auto commit or not.
func (c *SQLiteConn) AutoCommit() bool {
return int(C.sqlite3_get_autocommit(c.db)) != 0
}
func (c *SQLiteConn) lastError() Error {
return Error{
Code: ErrNo(C.sqlite3_errcode(c.db)),
ExtendedCode: ErrNoExtended(C.sqlite3_extended_errcode(c.db)),
err: C.GoString(C.sqlite3_errmsg(c.db)),
}
}
// Implements Execer
func (c *SQLiteConn) Exec(query string, args []driver.Value) (driver.Result, error) {
if len(args) == 0 {
return c.exec(query)
}
for {
s, err := c.Prepare(query)
if err != nil {
return nil, err
}
var res driver.Result
if s.(*SQLiteStmt).s != nil {
na := s.NumInput()
if len(args) < na {
return nil, fmt.Errorf("Not enough args to execute query. Expected %d, got %d.", na, len(args))
}
res, err = s.Exec(args[:na])
if err != nil && err != driver.ErrSkip {
s.Close()
return nil, err
}
args = args[na:]
}
tail := s.(*SQLiteStmt).t
s.Close()
if tail == "" {
return res, nil
}
query = tail
}
}
// Implements Queryer
func (c *SQLiteConn) Query(query string, args []driver.Value) (driver.Rows, error) {
for {
s, err := c.Prepare(query)
if err != nil {
return nil, err
}
s.(*SQLiteStmt).cls = true
na := s.NumInput()
if len(args) < na {
return nil, fmt.Errorf("Not enough args to execute query. Expected %d, got %d.", na, len(args))
}
rows, err := s.Query(args[:na])
if err != nil && err != driver.ErrSkip {
s.Close()
return nil, err
}
args = args[na:]
tail := s.(*SQLiteStmt).t
if tail == "" {
return rows, nil
}
rows.Close()
s.Close()
query = tail
}
}
func (c *SQLiteConn) exec(cmd string) (driver.Result, error) {
pcmd := C.CString(cmd)
defer C.free(unsafe.Pointer(pcmd))
var rowid, changes C.longlong
rv := C._sqlite3_exec(c.db, pcmd, &rowid, &changes)
if rv != C.SQLITE_OK {
return nil, c.lastError()
}
return &SQLiteResult{int64(rowid), int64(changes)}, nil
}
// Begin transaction.
func (c *SQLiteConn) Begin() (driver.Tx, error) {
if _, err := c.exec(c.txlock); err != nil {
return nil, err
}
return &SQLiteTx{c}, nil
}
func errorString(err Error) string {
return C.GoString(C.sqlite3_errstr(C.int(err.Code)))
}
// Open database and return a new connection.
// You can specify DSN string with URI filename.
// test.db
// file:test.db?cache=shared&mode=memory
// :memory:
// file::memory:
// go-sqlite handle especially query parameters.
// _loc=XXX
// Specify location of time format. It's possible to specify "auto".
// _busy_timeout=XXX
// Specify value for sqlite3_busy_timeout.
// _txlock=XXX
// Specify locking behavior for transactions. XXX can be "immediate",
// "deferred", "exclusive".
func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
if C.sqlite3_threadsafe() == 0 {
return nil, errors.New("sqlite library was not compiled for thread-safe operation")
}
var loc *time.Location
txlock := "BEGIN"
busy_timeout := 5000
pos := strings.IndexRune(dsn, '?')
if pos >= 1 {
params, err := url.ParseQuery(dsn[pos+1:])
if err != nil {
return nil, err
}
// _loc
if val := params.Get("_loc"); val != "" {
if val == "auto" {
loc = time.Local
} else {
loc, err = time.LoadLocation(val)
if err != nil {
return nil, fmt.Errorf("Invalid _loc: %v: %v", val, err)
}
}
}
// _busy_timeout
if val := params.Get("_busy_timeout"); val != "" {
iv, err := strconv.ParseInt(val, 10, 64)
if err != nil {
return nil, fmt.Errorf("Invalid _busy_timeout: %v: %v", val, err)
}
busy_timeout = int(iv)
}
// _txlock
if val := params.Get("_txlock"); val != "" {
switch val {
case "immediate":
txlock = "BEGIN IMMEDIATE"
case "exclusive":
txlock = "BEGIN EXCLUSIVE"
case "deferred":
txlock = "BEGIN"
default:
return nil, fmt.Errorf("Invalid _txlock: %v", val)
}
}
if !strings.HasPrefix(dsn, "file:") {
dsn = dsn[:pos]
}
}
var db *C.sqlite3
name := C.CString(dsn)
defer C.free(unsafe.Pointer(name))
rv := C._sqlite3_open_v2(name, &db,
C.SQLITE_OPEN_FULLMUTEX|
C.SQLITE_OPEN_READWRITE|
C.SQLITE_OPEN_CREATE,
nil)
if rv != 0 {
return nil, Error{Code: ErrNo(rv)}
}
if db == nil {
return nil, errors.New("sqlite succeeded without returning a database")
}
rv = C.sqlite3_busy_timeout(db, C.int(busy_timeout))
if rv != C.SQLITE_OK {
return nil, Error{Code: ErrNo(rv)}
}
conn := &SQLiteConn{db: db, loc: loc, txlock: txlock}
if len(d.Extensions) > 0 {
if err := conn.loadExtensions(d.Extensions); err != nil {
return nil, err
}
}
if d.ConnectHook != nil {
if err := d.ConnectHook(conn); err != nil {
return nil, err
}
}
runtime.SetFinalizer(conn, (*SQLiteConn).Close)
return conn, nil
}
// Close the connection.
func (c *SQLiteConn) Close() error {
rv := C.sqlite3_close_v2(c.db)
if rv != C.SQLITE_OK {
return c.lastError()
}
c.db = nil
runtime.SetFinalizer(c, nil)
return nil
}
// Prepare query string. Return a new statement.
func (c *SQLiteConn) Prepare(query string) (driver.Stmt, error) {
pquery := C.CString(query)
defer C.free(unsafe.Pointer(pquery))
var s *C.sqlite3_stmt
var tail *C.char
rv := C.sqlite3_prepare_v2(c.db, pquery, -1, &s, &tail)
if rv != C.SQLITE_OK {
return nil, c.lastError()
}
var t string
if tail != nil && *tail != '\000' {
t = strings.TrimSpace(C.GoString(tail))
}
nv := int(C.sqlite3_bind_parameter_count(s))
var nn []string
for i := 0; i < nv; i++ {
pn := C.GoString(C.sqlite3_bind_parameter_name(s, C.int(i+1)))
if len(pn) > 1 && pn[0] == '$' && 48 <= pn[1] && pn[1] <= 57 {
nn = append(nn, C.GoString(C.sqlite3_bind_parameter_name(s, C.int(i+1))))
}
}
ss := &SQLiteStmt{c: c, s: s, nv: nv, nn: nn, t: t}
runtime.SetFinalizer(ss, (*SQLiteStmt).Close)
return ss, nil
}
// Close the statement.
func (s *SQLiteStmt) Close() error {
if s.closed {
return nil
}
s.closed = true
if s.c == nil || s.c.db == nil {
return errors.New("sqlite statement with already closed database connection")
}
rv := C.sqlite3_finalize(s.s)
if rv != C.SQLITE_OK {
return s.c.lastError()
}
runtime.SetFinalizer(s, nil)
return nil
}
// Return a number of parameters.
func (s *SQLiteStmt) NumInput() int {
return s.nv
}
type bindArg struct {
n int
v driver.Value
}
func (s *SQLiteStmt) bind(args []driver.Value) error {
rv := C.sqlite3_reset(s.s)
if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
return s.c.lastError()
}
var vargs []bindArg
narg := len(args)
vargs = make([]bindArg, narg)
if len(s.nn) > 0 {
for i, v := range s.nn {
if pi, err := strconv.Atoi(v[1:]); err == nil {
vargs[i] = bindArg{pi, args[i]}
}
}
} else {
for i, v := range args {
vargs[i] = bindArg{i + 1, v}
}
}
for _, varg := range vargs {
n := C.int(varg.n)
v := varg.v
switch v := v.(type) {
case nil:
rv = C.sqlite3_bind_null(s.s, n)
case string:
if len(v) == 0 {
b := []byte{0}
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(0))
} else {
b := []byte(v)
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
}
case int64:
rv = C.sqlite3_bind_int64(s.s, n, C.sqlite3_int64(v))
case bool:
if bool(v) {
rv = C.sqlite3_bind_int(s.s, n, 1)
} else {
rv = C.sqlite3_bind_int(s.s, n, 0)
}
case float64:
rv = C.sqlite3_bind_double(s.s, n, C.double(v))
case []byte:
var p *byte
if len(v) > 0 {
p = &v[0]
}
rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(p), C.int(len(v)))
case time.Time:
b := []byte(v.UTC().Format(SQLiteTimestampFormats[0]))
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
}
if rv != C.SQLITE_OK {
return s.c.lastError()
}
}
return nil
}
// Query the statement with arguments. Return records.
func (s *SQLiteStmt) Query(args []driver.Value) (driver.Rows, error) {
if err := s.bind(args); err != nil {
return nil, err
}
return &SQLiteRows{s, int(C.sqlite3_column_count(s.s)), nil, nil, s.cls}, nil
}
// Return last inserted ID.
func (r *SQLiteResult) LastInsertId() (int64, error) {
return r.id, nil
}
// Return how many rows affected.
func (r *SQLiteResult) RowsAffected() (int64, error) {
return r.changes, nil
}
// Execute the statement with arguments. Return result object.
func (s *SQLiteStmt) Exec(args []driver.Value) (driver.Result, error) {
if err := s.bind(args); err != nil {
C.sqlite3_reset(s.s)
C.sqlite3_clear_bindings(s.s)
return nil, err
}
var rowid, changes C.longlong
rv := C._sqlite3_step(s.s, &rowid, &changes)
if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
err := s.c.lastError()
C.sqlite3_reset(s.s)
C.sqlite3_clear_bindings(s.s)
return nil, err
}
return &SQLiteResult{int64(rowid), int64(changes)}, nil
}
// Close the rows.
func (rc *SQLiteRows) Close() error {
if rc.s.closed {
return nil
}
if rc.cls {
return rc.s.Close()
}
rv := C.sqlite3_reset(rc.s.s)
if rv != C.SQLITE_OK {
return rc.s.c.lastError()
}
return nil
}
// Return column names.
func (rc *SQLiteRows) Columns() []string {
if rc.nc != len(rc.cols) {
rc.cols = make([]string, rc.nc)
for i := 0; i < rc.nc; i++ {
rc.cols[i] = C.GoString(C.sqlite3_column_name(rc.s.s, C.int(i)))
}
}
return rc.cols
}
// Move cursor to next.
func (rc *SQLiteRows) Next(dest []driver.Value) error {
rv := C.sqlite3_step(rc.s.s)
if rv == C.SQLITE_DONE {
return io.EOF
}
if rv != C.SQLITE_ROW {
rv = C.sqlite3_reset(rc.s.s)
if rv != C.SQLITE_OK {
return rc.s.c.lastError()
}
return nil
}
if rc.decltype == nil {
rc.decltype = make([]string, rc.nc)
for i := 0; i < rc.nc; i++ {
rc.decltype[i] = strings.ToLower(C.GoString(C.sqlite3_column_decltype(rc.s.s, C.int(i))))
}
}
for i := range dest {
switch C.sqlite3_column_type(rc.s.s, C.int(i)) {
case C.SQLITE_INTEGER:
val := int64(C.sqlite3_column_int64(rc.s.s, C.int(i)))
switch rc.decltype[i] {
case "timestamp", "datetime", "date":
unixTimestamp := strconv.FormatInt(val, 10)
var t time.Time
if len(unixTimestamp) == 13 {
duration, err := time.ParseDuration(unixTimestamp + "ms")
if err != nil {
return fmt.Errorf("error parsing %s value %d, %s", rc.decltype[i], val, err)
}
epoch := time.Date(1970, 1, 1, 0, 0, 0, 0, time.UTC)
t = epoch.Add(duration)
} else {
t = time.Unix(val, 0)
}
if rc.s.c.loc != nil {
t = t.In(rc.s.c.loc)
}
dest[i] = t
case "boolean":
dest[i] = val > 0
default:
dest[i] = val
}
case C.SQLITE_FLOAT:
dest[i] = float64(C.sqlite3_column_double(rc.s.s, C.int(i)))
case C.SQLITE_BLOB:
p := C.sqlite3_column_blob(rc.s.s, C.int(i))
if p == nil {
dest[i] = nil
continue
}
n := int(C.sqlite3_column_bytes(rc.s.s, C.int(i)))
switch dest[i].(type) {
case sql.RawBytes:
dest[i] = (*[1 << 30]byte)(unsafe.Pointer(p))[0:n]
default:
slice := make([]byte, n)
copy(slice[:], (*[1 << 30]byte)(unsafe.Pointer(p))[0:n])
dest[i] = slice
}
case C.SQLITE_NULL:
dest[i] = nil
case C.SQLITE_TEXT:
var err error
var timeVal time.Time
n := int(C.sqlite3_column_bytes(rc.s.s, C.int(i)))
s := C.GoStringN((*C.char)(unsafe.Pointer(C.sqlite3_column_text(rc.s.s, C.int(i)))), C.int(n))
switch rc.decltype[i] {
case "timestamp", "datetime", "date":
var t time.Time
s = strings.TrimSuffix(s, "Z")
for _, format := range SQLiteTimestampFormats {
if timeVal, err = time.ParseInLocation(format, s, time.UTC); err == nil {
t = timeVal
break
}
}
if err != nil {
// The column is a time value, so return the zero time on parse failure.
t = time.Time{}
}
if rc.s.c.loc != nil {
t = t.In(rc.s.c.loc)
}
dest[i] = t
default:
dest[i] = []byte(s)
}
}
}
return nil
}

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vendor/src/github.com/mattn/go-sqlite3/sqlite3_fts3_test.go vendored Normal file
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// Copyright (C) 2015 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package sqlite3
import (
"database/sql"
"os"
"testing"
)
func TestFTS3(t *testing.T) {
tempFilename := TempFilename()
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer os.Remove(tempFilename)
defer db.Close()
_, err = db.Exec("DROP TABLE foo")
_, err = db.Exec("CREATE VIRTUAL TABLE foo USING fts3(id INTEGER PRIMARY KEY, value TEXT)")
if err != nil {
t.Fatal("Failed to create table:", err)
}
_, err = db.Exec("INSERT INTO foo(id, value) VALUES(?, ?)", 1, `今日の 晩御飯は 天麩羅よ`)
if err != nil {
t.Fatal("Failed to insert value:", err)
}
_, err = db.Exec("INSERT INTO foo(id, value) VALUES(?, ?)", 2, `今日は いい 天気だ`)
if err != nil {
t.Fatal("Failed to insert value:", err)
}
rows, err := db.Query("SELECT id, value FROM foo WHERE value MATCH '今日* 天*'")
if err != nil {
t.Fatal("Unable to query foo table:", err)
}
defer rows.Close()
for rows.Next() {
var id int
var value string
if err := rows.Scan(&id, &value); err != nil {
t.Error("Unable to scan results:", err)
continue
}
if id == 1 && value != `今日の 晩御飯は 天麩羅よ` {
t.Error("Value for id 1 should be `今日の 晩御飯は 天麩羅よ`, but:", value)
} else if id == 2 && value != `今日は いい 天気だ` {
t.Error("Value for id 2 should be `今日は いい 天気だ`, but:", value)
}
}
rows, err = db.Query("SELECT value FROM foo WHERE value MATCH '今日* 天麩羅*'")
if err != nil {
t.Fatal("Unable to query foo table:", err)
}
defer rows.Close()
var value string
if !rows.Next() {
t.Fatal("Result should be only one")
}
if err := rows.Scan(&value); err != nil {
t.Fatal("Unable to scan results:", err)
}
if value != `今日の 晩御飯は 天麩羅よ` {
t.Fatal("Value should be `今日の 晩御飯は 天麩羅よ`, but:", value)
}
if rows.Next() {
t.Fatal("Result should be only one")
}
}
func TestFTS4(t *testing.T) {
tempFilename := TempFilename()
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer os.Remove(tempFilename)
defer db.Close()
_, err = db.Exec("DROP TABLE foo")
_, err = db.Exec("CREATE VIRTUAL TABLE foo USING fts4(tokenize=unicode61, id INTEGER PRIMARY KEY, value TEXT)")
if err != nil {
t.Fatal("Failed to create table:", err)
}
_, err = db.Exec("INSERT INTO foo(id, value) VALUES(?, ?)", 1, `février`)
if err != nil {
t.Fatal("Failed to insert value:", err)
}
rows, err := db.Query("SELECT value FROM foo WHERE value MATCH 'fevrier'")
if err != nil {
t.Fatal("Unable to query foo table:", err)
}
defer rows.Close()
var value string
if !rows.Next() {
t.Fatal("Result should be only one")
}
if err := rows.Scan(&value); err != nil {
t.Fatal("Unable to scan results:", err)
}
if value != `février` {
t.Fatal("Value should be `février`, but:", value)
}
if rows.Next() {
t.Fatal("Result should be only one")
}
}

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vendor/src/github.com/mattn/go-sqlite3/sqlite3_icu.go vendored Normal file
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// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
// +build icu
package sqlite3
/*
#cgo LDFLAGS: -licuuc -licui18n
#cgo CFLAGS: -DSQLITE_ENABLE_ICU
*/
import "C"

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vendor/src/github.com/mattn/go-sqlite3/sqlite3_libsqlite3.go vendored Normal file
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// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
// +build libsqlite3
package sqlite3
/*
#cgo CFLAGS: -DUSE_LIBSQLITE3
#cgo LDFLAGS: -lsqlite3
*/
import "C"

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vendor/src/github.com/mattn/go-sqlite3/sqlite3_load_extension.go vendored Normal file
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// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
// +build !sqlite_omit_load_extension
package sqlite3
/*
#include <sqlite3-binding.h>
#include <stdlib.h>
*/
import "C"
import (
"errors"
"unsafe"
)
func (c *SQLiteConn) loadExtensions(extensions []string) error {
rv := C.sqlite3_enable_load_extension(c.db, 1)
if rv != C.SQLITE_OK {
return errors.New(C.GoString(C.sqlite3_errmsg(c.db)))
}
for _, extension := range extensions {
cext := C.CString(extension)
defer C.free(unsafe.Pointer(cext))
rv = C.sqlite3_load_extension(c.db, cext, nil, nil)
if rv != C.SQLITE_OK {
return errors.New(C.GoString(C.sqlite3_errmsg(c.db)))
}
}
rv = C.sqlite3_enable_load_extension(c.db, 0)
if rv != C.SQLITE_OK {
return errors.New(C.GoString(C.sqlite3_errmsg(c.db)))
}
return nil
}

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vendor/src/github.com/mattn/go-sqlite3/sqlite3_omit_load_extension.go vendored Normal file
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// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
// +build sqlite_omit_load_extension
package sqlite3
/*
#cgo CFLAGS: -DSQLITE_OMIT_LOAD_EXTENSION
*/
import "C"
import (
"errors"
)
func (c *SQLiteConn) loadExtensions(extensions []string) error {
return errors.New("Extensions have been disabled for static builds")
}

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// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
// +build !windows
package sqlite3
/*
#cgo CFLAGS: -I.
#cgo linux LDFLAGS: -ldl
*/
import "C"

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package sqlite3_test
import (
"database/sql"
"fmt"
"math/rand"
"regexp"
"strconv"
"sync"
"testing"
"time"
)
type Dialect int
const (
SQLITE Dialect = iota
POSTGRESQL
MYSQL
)
type DB struct {
*testing.T
*sql.DB
dialect Dialect
once sync.Once
}
var db *DB
// the following tables will be created and dropped during the test
var testTables = []string{"foo", "bar", "t", "bench"}
var tests = []testing.InternalTest{
{"TestBlobs", TestBlobs},
{"TestManyQueryRow", TestManyQueryRow},
{"TestTxQuery", TestTxQuery},
{"TestPreparedStmt", TestPreparedStmt},
}
var benchmarks = []testing.InternalBenchmark{
{"BenchmarkExec", BenchmarkExec},
{"BenchmarkQuery", BenchmarkQuery},
{"BenchmarkParams", BenchmarkParams},
{"BenchmarkStmt", BenchmarkStmt},
{"BenchmarkRows", BenchmarkRows},
{"BenchmarkStmtRows", BenchmarkStmtRows},
}
// RunTests runs the SQL test suite
func RunTests(t *testing.T, d *sql.DB, dialect Dialect) {
db = &DB{t, d, dialect, sync.Once{}}
testing.RunTests(func(string, string) (bool, error) { return true, nil }, tests)
if !testing.Short() {
for _, b := range benchmarks {
fmt.Printf("%-20s", b.Name)
r := testing.Benchmark(b.F)
fmt.Printf("%10d %10.0f req/s\n", r.N, float64(r.N)/r.T.Seconds())
}
}
db.tearDown()
}
func (db *DB) mustExec(sql string, args ...interface{}) sql.Result {
res, err := db.Exec(sql, args...)
if err != nil {
db.Fatalf("Error running %q: %v", sql, err)
}
return res
}
func (db *DB) tearDown() {
for _, tbl := range testTables {
switch db.dialect {
case SQLITE:
db.mustExec("drop table if exists " + tbl)
case MYSQL, POSTGRESQL:
db.mustExec("drop table if exists " + tbl)
default:
db.Fatal("unkown dialect")
}
}
}
// q replaces ? parameters if needed
func (db *DB) q(sql string) string {
switch db.dialect {
case POSTGRESQL: // repace with $1, $2, ..
qrx := regexp.MustCompile(`\?`)
n := 0
return qrx.ReplaceAllStringFunc(sql, func(string) string {
n++
return "$" + strconv.Itoa(n)
})
}
return sql
}
func (db *DB) blobType(size int) string {
switch db.dialect {
case SQLITE:
return fmt.Sprintf("blob[%d]", size)
case POSTGRESQL:
return "bytea"
case MYSQL:
return fmt.Sprintf("VARBINARY(%d)", size)
}
panic("unkown dialect")
}
func (db *DB) serialPK() string {
switch db.dialect {
case SQLITE:
return "integer primary key autoincrement"
case POSTGRESQL:
return "serial primary key"
case MYSQL:
return "integer primary key auto_increment"
}
panic("unkown dialect")
}
func (db *DB) now() string {
switch db.dialect {
case SQLITE:
return "datetime('now')"
case POSTGRESQL:
return "now()"
case MYSQL:
return "now()"
}
panic("unkown dialect")
}
func makeBench() {
if _, err := db.Exec("create table bench (n varchar(32), i integer, d double, s varchar(32), t datetime)"); err != nil {
panic(err)
}
st, err := db.Prepare("insert into bench values (?, ?, ?, ?, ?)")
if err != nil {
panic(err)
}
defer st.Close()
for i := 0; i < 100; i++ {
if _, err = st.Exec(nil, i, float64(i), fmt.Sprintf("%d", i), time.Now()); err != nil {
panic(err)
}
}
}
func TestResult(t *testing.T) {
db.tearDown()
db.mustExec("create temporary table test (id " + db.serialPK() + ", name varchar(10))")
for i := 1; i < 3; i++ {
r := db.mustExec(db.q("insert into test (name) values (?)"), fmt.Sprintf("row %d", i))
n, err := r.RowsAffected()
if err != nil {
t.Fatal(err)
}
if n != 1 {
t.Errorf("got %v, want %v", n, 1)
}
n, err = r.LastInsertId()
if err != nil {
t.Fatal(err)
}
if n != int64(i) {
t.Errorf("got %v, want %v", n, i)
}
}
if _, err := db.Exec("error!"); err == nil {
t.Fatalf("expected error")
}
}
func TestBlobs(t *testing.T) {
db.tearDown()
var blob = []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
db.mustExec("create table foo (id integer primary key, bar " + db.blobType(16) + ")")
db.mustExec(db.q("insert into foo (id, bar) values(?,?)"), 0, blob)
want := fmt.Sprintf("%x", blob)
b := make([]byte, 16)
err := db.QueryRow(db.q("select bar from foo where id = ?"), 0).Scan(&b)
got := fmt.Sprintf("%x", b)
if err != nil {
t.Errorf("[]byte scan: %v", err)
} else if got != want {
t.Errorf("for []byte, got %q; want %q", got, want)
}
err = db.QueryRow(db.q("select bar from foo where id = ?"), 0).Scan(&got)
want = string(blob)
if err != nil {
t.Errorf("string scan: %v", err)
} else if got != want {
t.Errorf("for string, got %q; want %q", got, want)
}
}
func TestManyQueryRow(t *testing.T) {
if testing.Short() {
t.Log("skipping in short mode")
return
}
db.tearDown()
db.mustExec("create table foo (id integer primary key, name varchar(50))")
db.mustExec(db.q("insert into foo (id, name) values(?,?)"), 1, "bob")
var name string
for i := 0; i < 10000; i++ {
err := db.QueryRow(db.q("select name from foo where id = ?"), 1).Scan(&name)
if err != nil || name != "bob" {
t.Fatalf("on query %d: err=%v, name=%q", i, err, name)
}
}
}
func TestTxQuery(t *testing.T) {
db.tearDown()
tx, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer tx.Rollback()
_, err = tx.Exec("create table foo (id integer primary key, name varchar(50))")
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(db.q("insert into foo (id, name) values(?,?)"), 1, "bob")
if err != nil {
t.Fatal(err)
}
r, err := tx.Query(db.q("select name from foo where id = ?"), 1)
if err != nil {
t.Fatal(err)
}
defer r.Close()
if !r.Next() {
if r.Err() != nil {
t.Fatal(err)
}
t.Fatal("expected one rows")
}
var name string
err = r.Scan(&name)
if err != nil {
t.Fatal(err)
}
}
func TestPreparedStmt(t *testing.T) {
db.tearDown()
db.mustExec("CREATE TABLE t (count INT)")
sel, err := db.Prepare("SELECT count FROM t ORDER BY count DESC")
if err != nil {
t.Fatalf("prepare 1: %v", err)
}
ins, err := db.Prepare(db.q("INSERT INTO t (count) VALUES (?)"))
if err != nil {
t.Fatalf("prepare 2: %v", err)
}
for n := 1; n <= 3; n++ {
if _, err := ins.Exec(n); err != nil {
t.Fatalf("insert(%d) = %v", n, err)
}
}
const nRuns = 10
ch := make(chan bool)
for i := 0; i < nRuns; i++ {
go func() {
defer func() {
ch <- true
}()
for j := 0; j < 10; j++ {
count := 0
if err := sel.QueryRow().Scan(&count); err != nil && err != sql.ErrNoRows {
t.Errorf("Query: %v", err)
return
}
if _, err := ins.Exec(rand.Intn(100)); err != nil {
t.Errorf("Insert: %v", err)
return
}
}
}()
}
for i := 0; i < nRuns; i++ {
<-ch
}
}
// Benchmarks need to use panic() since b.Error errors are lost when
// running via testing.Benchmark() I would like to run these via go
// test -bench but calling Benchmark() from a benchmark test
// currently hangs go.
func BenchmarkExec(b *testing.B) {
for i := 0; i < b.N; i++ {
if _, err := db.Exec("select 1"); err != nil {
panic(err)
}
}
}
func BenchmarkQuery(b *testing.B) {
for i := 0; i < b.N; i++ {
var n sql.NullString
var i int
var f float64
var s string
// var t time.Time
if err := db.QueryRow("select null, 1, 1.1, 'foo'").Scan(&n, &i, &f, &s); err != nil {
panic(err)
}
}
}
func BenchmarkParams(b *testing.B) {
for i := 0; i < b.N; i++ {
var n sql.NullString
var i int
var f float64
var s string
// var t time.Time
if err := db.QueryRow("select ?, ?, ?, ?", nil, 1, 1.1, "foo").Scan(&n, &i, &f, &s); err != nil {
panic(err)
}
}
}
func BenchmarkStmt(b *testing.B) {
st, err := db.Prepare("select ?, ?, ?, ?")
if err != nil {
panic(err)
}
defer st.Close()
for n := 0; n < b.N; n++ {
var n sql.NullString
var i int
var f float64
var s string
// var t time.Time
if err := st.QueryRow(nil, 1, 1.1, "foo").Scan(&n, &i, &f, &s); err != nil {
panic(err)
}
}
}
func BenchmarkRows(b *testing.B) {
db.once.Do(makeBench)
for n := 0; n < b.N; n++ {
var n sql.NullString
var i int
var f float64
var s string
var t time.Time
r, err := db.Query("select * from bench")
if err != nil {
panic(err)
}
for r.Next() {
if err = r.Scan(&n, &i, &f, &s, &t); err != nil {
panic(err)
}
}
if err = r.Err(); err != nil {
panic(err)
}
}
}
func BenchmarkStmtRows(b *testing.B) {
db.once.Do(makeBench)
st, err := db.Prepare("select * from bench")
if err != nil {
panic(err)
}
defer st.Close()
for n := 0; n < b.N; n++ {
var n sql.NullString
var i int
var f float64
var s string
var t time.Time
r, err := st.Query()
if err != nil {
panic(err)
}
for r.Next() {
if err = r.Scan(&n, &i, &f, &s, &t); err != nil {
panic(err)
}
}
if err = r.Err(); err != nil {
panic(err)
}
}
}

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vendor/src/github.com/mattn/go-sqlite3/sqlite3_windows.go vendored Normal file
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// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
// +build windows
package sqlite3
/*
#cgo CFLAGS: -I. -fno-stack-check -fno-stack-protector -mno-stack-arg-probe
#cgo windows,386 CFLAGS: -D_localtime32=localtime
#cgo LDFLAGS: -lmingwex -lmingw32
*/
import "C"