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[chore]: Bump github.com/jackc/pgx/v5 from 5.3.1 to 5.4.1 (#1907)

Browse source 
Bumps [github.com/jackc/pgx/v5](https://github.com/jackc/pgx) from 5.3.1 to 5.4.1.
- [Changelog](https://github.com/jackc/pgx/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jackc/pgx/compare/v5.3.1...v5.4.1)

---
updated-dependencies:
- dependency-name: github.com/jackc/pgx/v5
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
This commit is contained in:
dependabot[bot] 2023-06-19 09:56:15 +02:00 • committed by GitHub
commit 70357a770f
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GPG key ID: 4AEE18F83AFDEB23
25 changed files with 1052 additions and 1243 deletions
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28
vendor/github.com/jackc/pgx/v5/CHANGELOG.md generated vendored
View file

@ -1,3 +1,31 @@
# 5.4.1 (June 18, 2023)
* Fix: concurrency bug with pgtypeDefaultMap and simple protocol (Lev Zakharov)
* Add TxOptions.BeginQuery to allow overriding the default BEGIN query
# 5.4.0 (June 14, 2023)
* Replace platform specific syscalls for non-blocking IO with more traditional goroutines and deadlines. This returns to the v4 approach with some additional improvements and fixes. This restores the ability to use a pgx.Conn over an ssh.Conn as well as other non-TCP or Unix socket connections. In addition, it is a significantly simpler implementation that is less likely to have cross platform issues.
* Optimization: The default type registrations are now shared among all connections. This saves about 100KB of memory per connection. `pgtype.Type` and `pgtype.Codec` values are now required to be immutable after registration. This was already necessary in most cases but wasn't documented until now. (Lev Zakharov)
* Fix: Ensure pgxpool.Pool.QueryRow.Scan releases connection on panic
* CancelRequest: don't try to read the reply (Nicola Murino)
* Fix: correctly handle bool type aliases (Wichert Akkerman)
* Fix: pgconn.CancelRequest: Fix unix sockets: don't use RemoteAddr()
* Fix: pgx.Conn memory leak with prepared statement caching (Evan Jones)
* Add BeforeClose to pgxpool.Pool (Evan Cordell)
* Fix: various hstore fixes and optimizations (Evan Jones)
* Fix: RowToStructByPos with embedded unexported struct
* Support different bool string representations (Lev Zakharov)
* Fix: error when using BatchResults.Exec on a select that returns an error after some rows.
* Fix: pipelineBatchResults.Exec() not returning error from ResultReader
* Fix: pipeline batch results not closing pipeline when error occurs while reading directly from results instead of using
a callback.
* Fix: scanning a table type into a struct
* Fix: scan array of record to pointer to slice of struct
* Fix: handle null for json (Cemre Mengu)
* Batch Query callback is called even when there is an error
* Add RowTo(AddrOf)StructByNameLax (Audi P. Risa P)
# 5.3.1 (February 27, 2023)
* Fix: Support v4 and v5 stdlib in same program (Tomáš Procházka)

11
vendor/github.com/jackc/pgx/v5/README.md generated vendored
View file

@ -132,13 +132,24 @@ These adapters can be used with the tracelog package.
* [github.com/jackc/pgx-logrus](https://github.com/jackc/pgx-logrus)
* [github.com/jackc/pgx-zap](https://github.com/jackc/pgx-zap)
* [github.com/jackc/pgx-zerolog](https://github.com/jackc/pgx-zerolog)
* [github.com/mcosta74/pgx-slog](https://github.com/mcosta74/pgx-slog)
## 3rd Party Libraries with PGX Support
### [github.com/pashagolub/pgxmock](https://github.com/pashagolub/pgxmock)
pgxmock is a mock library implementing pgx interfaces.
pgxmock has one and only purpose - to simulate pgx behavior in tests, without needing a real database connection.
### [github.com/georgysavva/scany](https://github.com/georgysavva/scany)
Library for scanning data from a database into Go structs and more.
### [github.com/vingarcia/ksql](https://github.com/vingarcia/ksql)
A carefully designed SQL client for making using SQL easier,
more productive, and less error-prone on Golang.
### [https://github.com/otan/gopgkrb5](https://github.com/otan/gopgkrb5)
Adds GSSAPI / Kerberos authentication support.

28
vendor/github.com/jackc/pgx/v5/batch.go generated vendored
View file

@ -21,13 +21,10 @@ type batchItemFunc func(br BatchResults) error
// Query sets fn to be called when the response to qq is received.
func (qq *QueuedQuery) Query(fn func(rows Rows) error) {
qq.fn = func(br BatchResults) error {
rows, err := br.Query()
if err != nil {
return err
}
rows, _ := br.Query()
defer rows.Close()
err = fn(rows)
err := fn(rows)
if err != nil {
return err
}
@ -142,7 +139,10 @@ func (br *batchResults) Exec() (pgconn.CommandTag, error) {
}
commandTag, err := br.mrr.ResultReader().Close()
br.err = err
if err != nil {
br.err = err
br.mrr.Close()
}
if br.conn.batchTracer != nil {
br.conn.batchTracer.TraceBatchQuery(br.ctx, br.conn, TraceBatchQueryData{
@ -228,7 +228,7 @@ func (br *batchResults) Close() error {
for br.err == nil && !br.closed && br.b != nil && br.qqIdx < len(br.b.queuedQueries) {
if br.b.queuedQueries[br.qqIdx].fn != nil {
err := br.b.queuedQueries[br.qqIdx].fn(br)
if err != nil && br.err == nil {
if err != nil {
br.err = err
}
} else {
@ -290,7 +290,7 @@ func (br *pipelineBatchResults) Exec() (pgconn.CommandTag, error) {
results, err := br.pipeline.GetResults()
if err != nil {
br.err = err
return pgconn.CommandTag{}, err
return pgconn.CommandTag{}, br.err
}
var commandTag pgconn.CommandTag
switch results := results.(type) {
@ -309,7 +309,7 @@ func (br *pipelineBatchResults) Exec() (pgconn.CommandTag, error) {
})
}
return commandTag, err
return commandTag, br.err
}
// Query reads the results from the next query in the batch as if the query has been sent with Query.
@ -384,24 +384,20 @@ func (br *pipelineBatchResults) Close() error {
}
}()
if br.err != nil {
return br.err
}
if br.lastRows != nil && br.lastRows.err != nil {
if br.err == nil && br.lastRows != nil && br.lastRows.err != nil {
br.err = br.lastRows.err
return br.err
}
if br.closed {
return nil
return br.err
}
// Read and run fn for all remaining items
for br.err == nil && !br.closed && br.b != nil && br.qqIdx < len(br.b.queuedQueries) {
if br.b.queuedQueries[br.qqIdx].fn != nil {
err := br.b.queuedQueries[br.qqIdx].fn(br)
if err != nil && br.err == nil {
if err != nil {
br.err = err
}
} else {

40
vendor/github.com/jackc/pgx/v5/conn.go generated vendored
View file

@ -178,7 +178,7 @@ func ParseConfigWithOptions(connString string, options ParseConfigOptions) (*Con
case "simple_protocol":
defaultQueryExecMode = QueryExecModeSimpleProtocol
default:
return nil, fmt.Errorf("invalid default_query_exec_mode: %v", err)
return nil, fmt.Errorf("invalid default_query_exec_mode: %s", s)
}
}
@ -382,11 +382,9 @@ func quoteIdentifier(s string) string {
return `"` + strings.ReplaceAll(s, `"`, `""`) + `"`
}
// Ping executes an empty sql statement against the *Conn
// If the sql returns without error, the database Ping is considered successful, otherwise, the error is returned.
// Ping delegates to the underlying *pgconn.PgConn.Ping.
func (c *Conn) Ping(ctx context.Context) error {
_, err := c.Exec(ctx, ";")
return err
return c.pgConn.Ping(ctx)
}
// PgConn returns the underlying *pgconn.PgConn. This is an escape hatch method that allows lower level access to the
@ -585,8 +583,10 @@ const (
QueryExecModeCacheDescribe
// Get the statement description on every execution. This uses the extended protocol. Queries require two round trips
// to execute. It does not use prepared statements (allowing usage with most connection poolers) and is safe even
// when the the database schema is modified concurrently.
// to execute. It does not use named prepared statements. But it does use the unnamed prepared statement to get the
// statement description on the first round trip and then uses it to execute the query on the second round trip. This
// may cause problems with connection poolers that switch the underlying connection between round trips. It is safe
// even when the the database schema is modified concurrently.
QueryExecModeDescribeExec
// Assume the PostgreSQL query parameter types based on the Go type of the arguments. This uses the extended protocol
@ -648,6 +648,9 @@ type QueryRewriter interface {
// returned Rows even if an error is returned. The error will be the available in rows.Err() after rows are closed. It
// is allowed to ignore the error returned from Query and handle it in Rows.
//
// It is possible for a call of FieldDescriptions on the returned Rows to return nil even if the Query call did not
// return an error.
//
// It is possible for a query to return one or more rows before encountering an error. In most cases the rows should be
// collected before processing rather than processed while receiving each row. This avoids the possibility of the
// application processing rows from a query that the server rejected. The CollectRows function is useful here.
@ -975,7 +978,7 @@ func (c *Conn) sendBatchQueryExecModeExec(ctx context.Context, b *Batch) *batchR
func (c *Conn) sendBatchQueryExecModeCacheStatement(ctx context.Context, b *Batch) (pbr *pipelineBatchResults) {
if c.statementCache == nil {
return &pipelineBatchResults{ctx: ctx, conn: c, err: errDisabledStatementCache}
return &pipelineBatchResults{ctx: ctx, conn: c, err: errDisabledStatementCache, closed: true}
}
distinctNewQueries := []*pgconn.StatementDescription{}
@ -1007,7 +1010,7 @@ func (c *Conn) sendBatchQueryExecModeCacheStatement(ctx context.Context, b *Batc
func (c *Conn) sendBatchQueryExecModeCacheDescribe(ctx context.Context, b *Batch) (pbr *pipelineBatchResults) {
if c.descriptionCache == nil {
return &pipelineBatchResults{ctx: ctx, conn: c, err: errDisabledDescriptionCache}
return &pipelineBatchResults{ctx: ctx, conn: c, err: errDisabledDescriptionCache, closed: true}
}
distinctNewQueries := []*pgconn.StatementDescription{}
@ -1074,18 +1077,18 @@ func (c *Conn) sendBatchExtendedWithDescription(ctx context.Context, b *Batch, d
err := pipeline.Sync()
if err != nil {
return &pipelineBatchResults{ctx: ctx, conn: c, err: err}
return &pipelineBatchResults{ctx: ctx, conn: c, err: err, closed: true}
}
for _, sd := range distinctNewQueries {
results, err := pipeline.GetResults()
if err != nil {
return &pipelineBatchResults{ctx: ctx, conn: c, err: err}
return &pipelineBatchResults{ctx: ctx, conn: c, err: err, closed: true}
}
resultSD, ok := results.(*pgconn.StatementDescription)
if !ok {
return &pipelineBatchResults{ctx: ctx, conn: c, err: fmt.Errorf("expected statement description, got %T", results)}
return &pipelineBatchResults{ctx: ctx, conn: c, err: fmt.Errorf("expected statement description, got %T", results), closed: true}
}
// Fill in the previously empty / pending statement descriptions.
@ -1095,12 +1098,12 @@ func (c *Conn) sendBatchExtendedWithDescription(ctx context.Context, b *Batch, d
results, err := pipeline.GetResults()
if err != nil {
return &pipelineBatchResults{ctx: ctx, conn: c, err: err}
return &pipelineBatchResults{ctx: ctx, conn: c, err: err, closed: true}
}
_, ok := results.(*pgconn.PipelineSync)
if !ok {
return &pipelineBatchResults{ctx: ctx, conn: c, err: fmt.Errorf("expected sync, got %T", results)}
return &pipelineBatchResults{ctx: ctx, conn: c, err: fmt.Errorf("expected sync, got %T", results), closed: true}
}
}
@ -1117,7 +1120,7 @@ func (c *Conn) sendBatchExtendedWithDescription(ctx context.Context, b *Batch, d
if err != nil {
// we wrap the error so we the user can understand which query failed inside the batch
err = fmt.Errorf("error building query %s: %w", bi.query, err)
return &pipelineBatchResults{ctx: ctx, conn: c, err: err}
return &pipelineBatchResults{ctx: ctx, conn: c, err: err, closed: true}
}
if bi.sd.Name == "" {
@ -1129,7 +1132,7 @@ func (c *Conn) sendBatchExtendedWithDescription(ctx context.Context, b *Batch, d
err := pipeline.Sync()
if err != nil {
return &pipelineBatchResults{ctx: ctx, conn: c, err: err}
return &pipelineBatchResults{ctx: ctx, conn: c, err: err, closed: true}
}
return &pipelineBatchResults{
@ -1282,7 +1285,9 @@ func (c *Conn) getCompositeFields(ctx context.Context, oid uint32) ([]pgtype.Com
var fieldOID uint32
rows, _ := c.Query(ctx, `select attname, atttypid
from pg_attribute
where attrelid=$1 and not attisdropped
where attrelid=$1
and not attisdropped
and attnum > 0
order by attnum`,
typrelid,
)
@ -1324,6 +1329,7 @@ func (c *Conn) deallocateInvalidatedCachedStatements(ctx context.Context) error
for _, sd := range invalidatedStatements {
pipeline.SendDeallocate(sd.Name)
delete(c.preparedStatements, sd.Name)
}
err := pipeline.Sync()

70
vendor/github.com/jackc/pgx/v5/internal/nbconn/bufferqueue.go generated vendored
View file

@ -1,70 +0,0 @@
package nbconn
import (
"sync"
)
const minBufferQueueLen = 8
type bufferQueue struct {
lock sync.Mutex
queue []*[]byte
r, w int
}
func (bq *bufferQueue) pushBack(buf *[]byte) {
bq.lock.Lock()
defer bq.lock.Unlock()
if bq.w >= len(bq.queue) {
bq.growQueue()
}
bq.queue[bq.w] = buf
bq.w++
}
func (bq *bufferQueue) pushFront(buf *[]byte) {
bq.lock.Lock()
defer bq.lock.Unlock()
if bq.w >= len(bq.queue) {
bq.growQueue()
}
copy(bq.queue[bq.r+1:bq.w+1], bq.queue[bq.r:bq.w])
bq.queue[bq.r] = buf
bq.w++
}
func (bq *bufferQueue) popFront() *[]byte {
bq.lock.Lock()
defer bq.lock.Unlock()
if bq.r == bq.w {
return nil
}
buf := bq.queue[bq.r]
bq.queue[bq.r] = nil // Clear reference so it can be garbage collected.
bq.r++
if bq.r == bq.w {
bq.r = 0
bq.w = 0
if len(bq.queue) > minBufferQueueLen {
bq.queue = make([]*[]byte, minBufferQueueLen)
}
}
return buf
}
func (bq *bufferQueue) growQueue() {
desiredLen := (len(bq.queue) + 1) * 3 / 2
if desiredLen < minBufferQueueLen {
desiredLen = minBufferQueueLen
}
newQueue := make([]*[]byte, desiredLen)
copy(newQueue, bq.queue)
bq.queue = newQueue
}

520
vendor/github.com/jackc/pgx/v5/internal/nbconn/nbconn.go generated vendored
View file

@ -1,520 +0,0 @@
// Package nbconn implements a non-blocking net.Conn wrapper.
//
// It is designed to solve three problems.
//
// The first is resolving the deadlock that can occur when both sides of a connection are blocked writing because all
// buffers between are full. See https://github.com/jackc/pgconn/issues/27 for discussion.
//
// The second is the inability to use a write deadline with a TLS.Conn without killing the connection.
//
// The third is to efficiently check if a connection has been closed via a non-blocking read.
package nbconn
import (
"crypto/tls"
"errors"
"net"
"os"
"sync"
"sync/atomic"
"syscall"
"time"
"github.com/jackc/pgx/v5/internal/iobufpool"
)
var errClosed = errors.New("closed")
var ErrWouldBlock = new(wouldBlockError)
const fakeNonblockingWriteWaitDuration = 100 * time.Millisecond
const minNonblockingReadWaitDuration = time.Microsecond
const maxNonblockingReadWaitDuration = 100 * time.Millisecond
// NonBlockingDeadline is a magic value that when passed to Set[Read]Deadline places the connection in non-blocking read
// mode.
var NonBlockingDeadline = time.Date(1900, 1, 1, 0, 0, 0, 608536336, time.UTC)
// disableSetDeadlineDeadline is a magic value that when passed to Set[Read|Write]Deadline causes those methods to
// ignore all future calls.
var disableSetDeadlineDeadline = time.Date(1900, 1, 1, 0, 0, 0, 968549727, time.UTC)
// wouldBlockError implements net.Error so tls.Conn will recognize ErrWouldBlock as a temporary error.
type wouldBlockError struct{}
func (*wouldBlockError) Error() string {
return "would block"
}
func (*wouldBlockError) Timeout() bool { return true }
func (*wouldBlockError) Temporary() bool { return true }
// Conn is a net.Conn where Write never blocks and always succeeds. Flush or Read must be called to actually write to
// the underlying connection.
type Conn interface {
net.Conn
// Flush flushes any buffered writes.
Flush() error
// BufferReadUntilBlock reads and buffers any successfully read bytes until the read would block.
BufferReadUntilBlock() error
}
// NetConn is a non-blocking net.Conn wrapper. It implements net.Conn.
type NetConn struct {
// 64 bit fields accessed with atomics must be at beginning of struct to guarantee alignment for certain 32-bit
// architectures. See BUGS section of https://pkg.go.dev/sync/atomic and https://github.com/jackc/pgx/issues/1288 and
// https://github.com/jackc/pgx/issues/1307. Only access with atomics
closed int64 // 0 = not closed, 1 = closed
conn net.Conn
rawConn syscall.RawConn
readQueue bufferQueue
writeQueue bufferQueue
readFlushLock sync.Mutex
// non-blocking writes with syscall.RawConn are done with a callback function. By using these fields instead of the
// callback functions closure to pass the buf argument and receive the n and err results we avoid some allocations.
nonblockWriteFunc func(fd uintptr) (done bool)
nonblockWriteBuf []byte
nonblockWriteErr error
nonblockWriteN int
// non-blocking reads with syscall.RawConn are done with a callback function. By using these fields instead of the
// callback functions closure to pass the buf argument and receive the n and err results we avoid some allocations.
nonblockReadFunc func(fd uintptr) (done bool)
nonblockReadBuf []byte
nonblockReadErr error
nonblockReadN int
readDeadlineLock sync.Mutex
readDeadline time.Time
readNonblocking bool
fakeNonBlockingShortReadCount int
fakeNonblockingReadWaitDuration time.Duration
writeDeadlineLock sync.Mutex
writeDeadline time.Time
}
func NewNetConn(conn net.Conn, fakeNonBlockingIO bool) *NetConn {
nc := &NetConn{
conn: conn,
fakeNonblockingReadWaitDuration: maxNonblockingReadWaitDuration,
}
if !fakeNonBlockingIO {
if sc, ok := conn.(syscall.Conn); ok {
if rawConn, err := sc.SyscallConn(); err == nil {
nc.rawConn = rawConn
}
}
}
return nc
}
// Read implements io.Reader.
func (c *NetConn) Read(b []byte) (n int, err error) {
if c.isClosed() {
return 0, errClosed
}
c.readFlushLock.Lock()
defer c.readFlushLock.Unlock()
err = c.flush()
if err != nil {
return 0, err
}
for n < len(b) {
buf := c.readQueue.popFront()
if buf == nil {
break
}
copiedN := copy(b[n:], *buf)
if copiedN < len(*buf) {
*buf = (*buf)[copiedN:]
c.readQueue.pushFront(buf)
} else {
iobufpool.Put(buf)
}
n += copiedN
}
// If any bytes were already buffered return them without trying to do a Read. Otherwise, when the caller is trying to
// Read up to len(b) bytes but all available bytes have already been buffered the underlying Read would block.
if n > 0 {
return n, nil
}
var readNonblocking bool
c.readDeadlineLock.Lock()
readNonblocking = c.readNonblocking
c.readDeadlineLock.Unlock()
var readN int
if readNonblocking {
readN, err = c.nonblockingRead(b[n:])
} else {
readN, err = c.conn.Read(b[n:])
}
n += readN
return n, err
}
// Write implements io.Writer. It never blocks due to buffering all writes. It will only return an error if the Conn is
// closed. Call Flush to actually write to the underlying connection.
func (c *NetConn) Write(b []byte) (n int, err error) {
if c.isClosed() {
return 0, errClosed
}
buf := iobufpool.Get(len(b))
copy(*buf, b)
c.writeQueue.pushBack(buf)
return len(b), nil
}
func (c *NetConn) Close() (err error) {
swapped := atomic.CompareAndSwapInt64(&c.closed, 0, 1)
if !swapped {
return errClosed
}
defer func() {
closeErr := c.conn.Close()
if err == nil {
err = closeErr
}
}()
c.readFlushLock.Lock()
defer c.readFlushLock.Unlock()
err = c.flush()
if err != nil {
return err
}
return nil
}
func (c *NetConn) LocalAddr() net.Addr {
return c.conn.LocalAddr()
}
func (c *NetConn) RemoteAddr() net.Addr {
return c.conn.RemoteAddr()
}
// SetDeadline is the equivalent of calling SetReadDealine(t) and SetWriteDeadline(t).
func (c *NetConn) SetDeadline(t time.Time) error {
err := c.SetReadDeadline(t)
if err != nil {
return err
}
return c.SetWriteDeadline(t)
}
// SetReadDeadline sets the read deadline as t. If t == NonBlockingDeadline then future reads will be non-blocking.
func (c *NetConn) SetReadDeadline(t time.Time) error {
if c.isClosed() {
return errClosed
}
c.readDeadlineLock.Lock()
defer c.readDeadlineLock.Unlock()
if c.readDeadline == disableSetDeadlineDeadline {
return nil
}
if t == disableSetDeadlineDeadline {
c.readDeadline = t
return nil
}
if t == NonBlockingDeadline {
c.readNonblocking = true
t = time.Time{}
} else {
c.readNonblocking = false
}
c.readDeadline = t
return c.conn.SetReadDeadline(t)
}
func (c *NetConn) SetWriteDeadline(t time.Time) error {
if c.isClosed() {
return errClosed
}
c.writeDeadlineLock.Lock()
defer c.writeDeadlineLock.Unlock()
if c.writeDeadline == disableSetDeadlineDeadline {
return nil
}
if t == disableSetDeadlineDeadline {
c.writeDeadline = t
return nil
}
c.writeDeadline = t
return c.conn.SetWriteDeadline(t)
}
func (c *NetConn) Flush() error {
if c.isClosed() {
return errClosed
}
c.readFlushLock.Lock()
defer c.readFlushLock.Unlock()
return c.flush()
}
// flush does the actual work of flushing the writeQueue. readFlushLock must already be held.
func (c *NetConn) flush() error {
var stopChan chan struct{}
var errChan chan error
defer func() {
if stopChan != nil {
select {
case stopChan <- struct{}{}:
case <-errChan:
}
}
}()
for buf := c.writeQueue.popFront(); buf != nil; buf = c.writeQueue.popFront() {
remainingBuf := *buf
for len(remainingBuf) > 0 {
n, err := c.nonblockingWrite(remainingBuf)
remainingBuf = remainingBuf[n:]
if err != nil {
if !errors.Is(err, ErrWouldBlock) {
*buf = (*buf)[:len(remainingBuf)]
copy(*buf, remainingBuf)
c.writeQueue.pushFront(buf)
return err
}
// Writing was blocked. Reading might unblock it.
if stopChan == nil {
stopChan, errChan = c.bufferNonblockingRead()
}
select {
case err := <-errChan:
stopChan = nil
return err
default:
}
}
}
iobufpool.Put(buf)
}
return nil
}
func (c *NetConn) BufferReadUntilBlock() error {
for {
buf := iobufpool.Get(8 * 1024)
n, err := c.nonblockingRead(*buf)
if n > 0 {
*buf = (*buf)[:n]
c.readQueue.pushBack(buf)
} else if n == 0 {
iobufpool.Put(buf)
}
if err != nil {
if errors.Is(err, ErrWouldBlock) {
return nil
} else {
return err
}
}
}
}
func (c *NetConn) bufferNonblockingRead() (stopChan chan struct{}, errChan chan error) {
stopChan = make(chan struct{})
errChan = make(chan error, 1)
go func() {
for {
err := c.BufferReadUntilBlock()
if err != nil {
errChan <- err
return
}
select {
case <-stopChan:
return
default:
}
}
}()
return stopChan, errChan
}
func (c *NetConn) isClosed() bool {
closed := atomic.LoadInt64(&c.closed)
return closed == 1
}
func (c *NetConn) nonblockingWrite(b []byte) (n int, err error) {
if c.rawConn == nil {
return c.fakeNonblockingWrite(b)
} else {
return c.realNonblockingWrite(b)
}
}
func (c *NetConn) fakeNonblockingWrite(b []byte) (n int, err error) {
c.writeDeadlineLock.Lock()
defer c.writeDeadlineLock.Unlock()
deadline := time.Now().Add(fakeNonblockingWriteWaitDuration)
if c.writeDeadline.IsZero() || deadline.Before(c.writeDeadline) {
err = c.conn.SetWriteDeadline(deadline)
if err != nil {
return 0, err
}
defer func() {
// Ignoring error resetting deadline as there is nothing that can reasonably be done if it fails.
c.conn.SetWriteDeadline(c.writeDeadline)
if err != nil {
if errors.Is(err, os.ErrDeadlineExceeded) {
err = ErrWouldBlock
}
}
}()
}
return c.conn.Write(b)
}
func (c *NetConn) nonblockingRead(b []byte) (n int, err error) {
if c.rawConn == nil {
return c.fakeNonblockingRead(b)
} else {
return c.realNonblockingRead(b)
}
}
func (c *NetConn) fakeNonblockingRead(b []byte) (n int, err error) {
c.readDeadlineLock.Lock()
defer c.readDeadlineLock.Unlock()
// The first 5 reads only read 1 byte at a time. This should give us 4 chances to read when we are sure the bytes are
// already in Go or the OS's receive buffer.
if c.fakeNonBlockingShortReadCount < 5 && len(b) > 0 && c.fakeNonblockingReadWaitDuration < minNonblockingReadWaitDuration {
b = b[:1]
}
startTime := time.Now()
deadline := startTime.Add(c.fakeNonblockingReadWaitDuration)
if c.readDeadline.IsZero() || deadline.Before(c.readDeadline) {
err = c.conn.SetReadDeadline(deadline)
if err != nil {
return 0, err
}
defer func() {
// If the read was successful and the wait duration is not already the minimum
if err == nil && c.fakeNonblockingReadWaitDuration > minNonblockingReadWaitDuration {
endTime := time.Now()
if n > 0 && c.fakeNonBlockingShortReadCount < 5 {
c.fakeNonBlockingShortReadCount++
}
// The wait duration should be 2x the fastest read that has occurred. This should give reasonable assurance that
// a Read deadline will not block a read before it has a chance to read data already in Go or the OS's receive
// buffer.
proposedWait := endTime.Sub(startTime) * 2
if proposedWait < minNonblockingReadWaitDuration {
proposedWait = minNonblockingReadWaitDuration
}
if proposedWait < c.fakeNonblockingReadWaitDuration {
c.fakeNonblockingReadWaitDuration = proposedWait
}
}
// Ignoring error resetting deadline as there is nothing that can reasonably be done if it fails.
c.conn.SetReadDeadline(c.readDeadline)
if err != nil {
if errors.Is(err, os.ErrDeadlineExceeded) {
err = ErrWouldBlock
}
}
}()
}
return c.conn.Read(b)
}
// syscall.Conn is interface
// TLSClient establishes a TLS connection as a client over conn using config.
//
// To avoid the first Read on the returned *TLSConn also triggering a Write due to the TLS handshake and thereby
// potentially causing a read and write deadlines to behave unexpectedly, Handshake is called explicitly before the
// *TLSConn is returned.
func TLSClient(conn *NetConn, config *tls.Config) (*TLSConn, error) {
tc := tls.Client(conn, config)
err := tc.Handshake()
if err != nil {
return nil, err
}
// Ensure last written part of Handshake is actually sent.
err = conn.Flush()
if err != nil {
return nil, err
}
return &TLSConn{
tlsConn: tc,
nbConn: conn,
}, nil
}
// TLSConn is a TLS wrapper around a *Conn. It works around a temporary write error (such as a timeout) being fatal to a
// tls.Conn.
type TLSConn struct {
tlsConn *tls.Conn
nbConn *NetConn
}
func (tc *TLSConn) Read(b []byte) (n int, err error) { return tc.tlsConn.Read(b) }
func (tc *TLSConn) Write(b []byte) (n int, err error) { return tc.tlsConn.Write(b) }
func (tc *TLSConn) BufferReadUntilBlock() error { return tc.nbConn.BufferReadUntilBlock() }
func (tc *TLSConn) Flush() error { return tc.nbConn.Flush() }
func (tc *TLSConn) LocalAddr() net.Addr { return tc.tlsConn.LocalAddr() }
func (tc *TLSConn) RemoteAddr() net.Addr { return tc.tlsConn.RemoteAddr() }
func (tc *TLSConn) Close() error {
// tls.Conn.closeNotify() sets a 5 second deadline to avoid blocking, sends a TLS alert close notification, and then
// sets the deadline to now. This causes NetConn's Close not to be able to flush the write buffer. Instead we set our
// own 5 second deadline then make all set deadlines no-op.
tc.tlsConn.SetDeadline(time.Now().Add(time.Second * 5))
tc.tlsConn.SetDeadline(disableSetDeadlineDeadline)
return tc.tlsConn.Close()
}
func (tc *TLSConn) SetDeadline(t time.Time) error { return tc.tlsConn.SetDeadline(t) }
func (tc *TLSConn) SetReadDeadline(t time.Time) error { return tc.tlsConn.SetReadDeadline(t) }
func (tc *TLSConn) SetWriteDeadline(t time.Time) error { return tc.tlsConn.SetWriteDeadline(t) }

11
vendor/github.com/jackc/pgx/v5/internal/nbconn/nbconn_fake_non_block.go generated vendored
View file

@ -1,11 +0,0 @@
//go:build !unix
package nbconn
func (c *NetConn) realNonblockingWrite(b []byte) (n int, err error) {
return c.fakeNonblockingWrite(b)
}
func (c *NetConn) realNonblockingRead(b []byte) (n int, err error) {
return c.fakeNonblockingRead(b)
}

81
vendor/github.com/jackc/pgx/v5/internal/nbconn/nbconn_real_non_block.go generated vendored
View file

@ -1,81 +0,0 @@
//go:build unix
package nbconn
import (
"errors"
"io"
"syscall"
)
// realNonblockingWrite does a non-blocking write. readFlushLock must already be held.
func (c *NetConn) realNonblockingWrite(b []byte) (n int, err error) {
if c.nonblockWriteFunc == nil {
c.nonblockWriteFunc = func(fd uintptr) (done bool) {
c.nonblockWriteN, c.nonblockWriteErr = syscall.Write(int(fd), c.nonblockWriteBuf)
return true
}
}
c.nonblockWriteBuf = b
c.nonblockWriteN = 0
c.nonblockWriteErr = nil
err = c.rawConn.Write(c.nonblockWriteFunc)
n = c.nonblockWriteN
c.nonblockWriteBuf = nil // ensure that no reference to b is kept.
if err == nil && c.nonblockWriteErr != nil {
if errors.Is(c.nonblockWriteErr, syscall.EWOULDBLOCK) {
err = ErrWouldBlock
} else {
err = c.nonblockWriteErr
}
}
if err != nil {
// n may be -1 when an error occurs.
if n < 0 {
n = 0
}
return n, err
}
return n, nil
}
func (c *NetConn) realNonblockingRead(b []byte) (n int, err error) {
if c.nonblockReadFunc == nil {
c.nonblockReadFunc = func(fd uintptr) (done bool) {
c.nonblockReadN, c.nonblockReadErr = syscall.Read(int(fd), c.nonblockReadBuf)
return true
}
}
c.nonblockReadBuf = b
c.nonblockReadN = 0
c.nonblockReadErr = nil
err = c.rawConn.Read(c.nonblockReadFunc)
n = c.nonblockReadN
c.nonblockReadBuf = nil // ensure that no reference to b is kept.
if err == nil && c.nonblockReadErr != nil {
if errors.Is(c.nonblockReadErr, syscall.EWOULDBLOCK) {
err = ErrWouldBlock
} else {
err = c.nonblockReadErr
}
}
if err != nil {
// n may be -1 when an error occurs.
if n < 0 {
n = 0
}
return n, err
}
// syscall read did not return an error and 0 bytes were read means EOF.
if n == 0 {
return 0, io.EOF
}
return n, nil
}

4
vendor/github.com/jackc/pgx/v5/pgconn/auth_scram.go generated vendored
View file

@ -42,7 +42,7 @@ func (c *PgConn) scramAuth(serverAuthMechanisms []string) error {
Data: sc.clientFirstMessage(),
}
c.frontend.Send(saslInitialResponse)
err = c.frontend.Flush()
err = c.flushWithPotentialWriteReadDeadlock()
if err != nil {
return err
}
@ -62,7 +62,7 @@ func (c *PgConn) scramAuth(serverAuthMechanisms []string) error {
Data: []byte(sc.clientFinalMessage()),
}
c.frontend.Send(saslResponse)
err = c.frontend.Flush()
err = c.flushWithPotentialWriteReadDeadlock()
if err != nil {
return err
}

132
vendor/github.com/jackc/pgx/v5/pgconn/internal/bgreader/bgreader.go generated vendored Normal file
View file

@ -0,0 +1,132 @@
// Package bgreader provides a io.Reader that can optionally buffer reads in the background.
package bgreader
import (
"io"
"sync"
"github.com/jackc/pgx/v5/internal/iobufpool"
)
const (
bgReaderStatusStopped = iota
bgReaderStatusRunning
bgReaderStatusStopping
)
// BGReader is an io.Reader that can optionally buffer reads in the background. It is safe for concurrent use.
type BGReader struct {
r io.Reader
cond *sync.Cond
bgReaderStatus int32
readResults []readResult
}
type readResult struct {
buf *[]byte
err error
}
// Start starts the backgrounder reader. If the background reader is already running this is a no-op. The background
// reader will stop automatically when the underlying reader returns an error.
func (r *BGReader) Start() {
r.cond.L.Lock()
defer r.cond.L.Unlock()
switch r.bgReaderStatus {
case bgReaderStatusStopped:
r.bgReaderStatus = bgReaderStatusRunning
go r.bgRead()
case bgReaderStatusRunning:
// no-op
case bgReaderStatusStopping:
r.bgReaderStatus = bgReaderStatusRunning
}
}
// Stop tells the background reader to stop after the in progress Read returns. It is safe to call Stop when the
// background reader is not running.
func (r *BGReader) Stop() {
r.cond.L.Lock()
defer r.cond.L.Unlock()
switch r.bgReaderStatus {
case bgReaderStatusStopped:
// no-op
case bgReaderStatusRunning:
r.bgReaderStatus = bgReaderStatusStopping
case bgReaderStatusStopping:
// no-op
}
}
func (r *BGReader) bgRead() {
keepReading := true
for keepReading {
buf := iobufpool.Get(8192)
n, err := r.r.Read(*buf)
*buf = (*buf)[:n]
r.cond.L.Lock()
r.readResults = append(r.readResults, readResult{buf: buf, err: err})
if r.bgReaderStatus == bgReaderStatusStopping || err != nil {
r.bgReaderStatus = bgReaderStatusStopped
keepReading = false
}
r.cond.L.Unlock()
r.cond.Broadcast()
}
}
// Read implements the io.Reader interface.
func (r *BGReader) Read(p []byte) (int, error) {
r.cond.L.Lock()
defer r.cond.L.Unlock()
if len(r.readResults) > 0 {
return r.readFromReadResults(p)
}
// There are no unread background read results and the background reader is stopped.
if r.bgReaderStatus == bgReaderStatusStopped {
return r.r.Read(p)
}
// Wait for results from the background reader
for len(r.readResults) == 0 {
r.cond.Wait()
}
return r.readFromReadResults(p)
}
// readBackgroundResults reads a result previously read by the background reader. r.cond.L must be held.
func (r *BGReader) readFromReadResults(p []byte) (int, error) {
buf := r.readResults[0].buf
var err error
n := copy(p, *buf)
if n == len(*buf) {
err = r.readResults[0].err
iobufpool.Put(buf)
if len(r.readResults) == 1 {
r.readResults = nil
} else {
r.readResults = r.readResults[1:]
}
} else {
*buf = (*buf)[n:]
r.readResults[0].buf = buf
}
return n, err
}
func New(r io.Reader) *BGReader {
return &BGReader{
r: r,
cond: &sync.Cond{
L: &sync.Mutex{},
},
}
}

2
vendor/github.com/jackc/pgx/v5/pgconn/krb5.go generated vendored
View file

@ -63,7 +63,7 @@ func (c *PgConn) gssAuth() error {
Data: nextData,
}
c.frontend.Send(gssResponse)
err = c.frontend.Flush()
err = c.flushWithPotentialWriteReadDeadlock()
if err != nil {
return err
}

313
vendor/github.com/jackc/pgx/v5/pgconn/pgconn.go generated vendored
View file

@ -13,11 +13,12 @@ import (
"net"
"strconv"
"strings"
"sync"
"time"
"github.com/jackc/pgx/v5/internal/iobufpool"
"github.com/jackc/pgx/v5/internal/nbconn"
"github.com/jackc/pgx/v5/internal/pgio"
"github.com/jackc/pgx/v5/pgconn/internal/bgreader"
"github.com/jackc/pgx/v5/pgconn/internal/ctxwatch"
"github.com/jackc/pgx/v5/pgproto3"
)
@ -65,17 +66,24 @@ type NotificationHandler func(*PgConn, *Notification)
// PgConn is a low-level PostgreSQL connection handle. It is not safe for concurrent usage.
type PgConn struct {
conn nbconn.Conn // the non-blocking wrapper for the underlying TCP or unix domain socket connection
conn net.Conn
pid uint32 // backend pid
secretKey uint32 // key to use to send a cancel query message to the server
parameterStatuses map[string]string // parameters that have been reported by the server
txStatus byte
frontend *pgproto3.Frontend
bgReader *bgreader.BGReader
slowWriteTimer *time.Timer
config *Config
status byte // One of connStatus* constants
bufferingReceive bool
bufferingReceiveMux sync.Mutex
bufferingReceiveMsg pgproto3.BackendMessage
bufferingReceiveErr error
peekedMsg pgproto3.BackendMessage
// Reusable / preallocated resources
@ -266,14 +274,13 @@ func connect(ctx context.Context, config *Config, fallbackConfig *FallbackConfig
if err != nil {
return nil, &connectError{config: config, msg: "dial error", err: normalizeTimeoutError(ctx, err)}
}
nbNetConn := nbconn.NewNetConn(netConn, false)
pgConn.conn = nbNetConn
pgConn.contextWatcher = newContextWatcher(nbNetConn)
pgConn.conn = netConn
pgConn.contextWatcher = newContextWatcher(netConn)
pgConn.contextWatcher.Watch(ctx)
if fallbackConfig.TLSConfig != nil {
nbTLSConn, err := startTLS(nbNetConn, fallbackConfig.TLSConfig)
nbTLSConn, err := startTLS(netConn, fallbackConfig.TLSConfig)
pgConn.contextWatcher.Unwatch() // Always unwatch `netConn` after TLS.
if err != nil {
netConn.Close()
@ -289,7 +296,9 @@ func connect(ctx context.Context, config *Config, fallbackConfig *FallbackConfig
pgConn.parameterStatuses = make(map[string]string)
pgConn.status = connStatusConnecting
pgConn.frontend = config.BuildFrontend(pgConn.conn, pgConn.conn)
pgConn.bgReader = bgreader.New(pgConn.conn)
pgConn.slowWriteTimer = time.AfterFunc(time.Duration(math.MaxInt64), pgConn.bgReader.Start)
pgConn.frontend = config.BuildFrontend(pgConn.bgReader, pgConn.conn)
startupMsg := pgproto3.StartupMessage{
ProtocolVersion: pgproto3.ProtocolVersionNumber,
@ -307,9 +316,9 @@ func connect(ctx context.Context, config *Config, fallbackConfig *FallbackConfig
}
pgConn.frontend.Send(&startupMsg)
if err := pgConn.frontend.Flush(); err != nil {
if err := pgConn.flushWithPotentialWriteReadDeadlock(); err != nil {
pgConn.conn.Close()
return nil, &connectError{config: config, msg: "failed to write startup message", err: err}
return nil, &connectError{config: config, msg: "failed to write startup message", err: normalizeTimeoutError(ctx, err)}
}
for {
@ -392,7 +401,7 @@ func newContextWatcher(conn net.Conn) *ctxwatch.ContextWatcher {
)
}
func startTLS(conn *nbconn.NetConn, tlsConfig *tls.Config) (*nbconn.TLSConn, error) {
func startTLS(conn net.Conn, tlsConfig *tls.Config) (net.Conn, error) {
err := binary.Write(conn, binary.BigEndian, []int32{8, 80877103})
if err != nil {
return nil, err
@ -407,17 +416,12 @@ func startTLS(conn *nbconn.NetConn, tlsConfig *tls.Config) (*nbconn.TLSConn, err
return nil, errors.New("server refused TLS connection")
}
tlsConn, err := nbconn.TLSClient(conn, tlsConfig)
if err != nil {
return nil, err
}
return tlsConn, nil
return tls.Client(conn, tlsConfig), nil
}
func (pgConn *PgConn) txPasswordMessage(password string) (err error) {
pgConn.frontend.Send(&pgproto3.PasswordMessage{Password: password})
return pgConn.frontend.Flush()
return pgConn.flushWithPotentialWriteReadDeadlock()
}
func hexMD5(s string) string {
@ -426,6 +430,24 @@ func hexMD5(s string) string {
return hex.EncodeToString(hash.Sum(nil))
}
func (pgConn *PgConn) signalMessage() chan struct{} {
if pgConn.bufferingReceive {
panic("BUG: signalMessage when already in progress")
}
pgConn.bufferingReceive = true
pgConn.bufferingReceiveMux.Lock()
ch := make(chan struct{})
go func() {
pgConn.bufferingReceiveMsg, pgConn.bufferingReceiveErr = pgConn.frontend.Receive()
pgConn.bufferingReceiveMux.Unlock()
close(ch)
}()
return ch
}
// ReceiveMessage receives one wire protocol message from the PostgreSQL server. It must only be used when the
// connection is not busy. e.g. It is an error to call ReceiveMessage while reading the result of a query. The messages
// are still handled by the core pgconn message handling system so receiving a NotificationResponse will still trigger
@ -465,13 +487,25 @@ func (pgConn *PgConn) peekMessage() (pgproto3.BackendMessage, error) {
return pgConn.peekedMsg, nil
}
msg, err := pgConn.frontend.Receive()
var msg pgproto3.BackendMessage
var err error
if pgConn.bufferingReceive {
pgConn.bufferingReceiveMux.Lock()
msg = pgConn.bufferingReceiveMsg
err = pgConn.bufferingReceiveErr
pgConn.bufferingReceiveMux.Unlock()
pgConn.bufferingReceive = false
// If a timeout error happened in the background try the read again.
var netErr net.Error
if errors.As(err, &netErr) && netErr.Timeout() {
msg, err = pgConn.frontend.Receive()
}
} else {
msg, err = pgConn.frontend.Receive()
}
if err != nil {
if errors.Is(err, nbconn.ErrWouldBlock) {
return nil, err
}
// Close on anything other than timeout error - everything else is fatal
var netErr net.Error
isNetErr := errors.As(err, &netErr)
@ -582,7 +616,7 @@ func (pgConn *PgConn) Close(ctx context.Context) error {
//
// See https://github.com/jackc/pgx/issues/637
pgConn.frontend.Send(&pgproto3.Terminate{})
pgConn.frontend.Flush()
pgConn.flushWithPotentialWriteReadDeadlock()
return pgConn.conn.Close()
}
@ -609,7 +643,7 @@ func (pgConn *PgConn) asyncClose() {
pgConn.conn.SetDeadline(deadline)
pgConn.frontend.Send(&pgproto3.Terminate{})
pgConn.frontend.Flush()
pgConn.flushWithPotentialWriteReadDeadlock()
}()
}
@ -784,7 +818,7 @@ func (pgConn *PgConn) Prepare(ctx context.Context, name, sql string, paramOIDs [
pgConn.frontend.SendParse(&pgproto3.Parse{Name: name, Query: sql, ParameterOIDs: paramOIDs})
pgConn.frontend.SendDescribe(&pgproto3.Describe{ObjectType: 'S', Name: name})
pgConn.frontend.SendSync(&pgproto3.Sync{})
err := pgConn.frontend.Flush()
err := pgConn.flushWithPotentialWriteReadDeadlock()
if err != nil {
pgConn.asyncClose()
return nil, err
@ -857,9 +891,28 @@ func (pgConn *PgConn) CancelRequest(ctx context.Context) error {
// the connection config. This is important in high availability configurations where fallback connections may be
// specified or DNS may be used to load balance.
serverAddr := pgConn.conn.RemoteAddr()
cancelConn, err := pgConn.config.DialFunc(ctx, serverAddr.Network(), serverAddr.String())
var serverNetwork string
var serverAddress string
if serverAddr.Network() == "unix" {
// for unix sockets, RemoteAddr() calls getpeername() which returns the name the
// server passed to bind(). For Postgres, this is always a relative path "./.s.PGSQL.5432"
// so connecting to it will fail. Fall back to the config's value
serverNetwork, serverAddress = NetworkAddress(pgConn.config.Host, pgConn.config.Port)
} else {
serverNetwork, serverAddress = serverAddr.Network(), serverAddr.String()
}
cancelConn, err := pgConn.config.DialFunc(ctx, serverNetwork, serverAddress)
if err != nil {
return err
// In case of unix sockets, RemoteAddr() returns only the file part of the path. If the
// first connect failed, try the config.
if serverAddr.Network() != "unix" {
return err
}
serverNetwork, serverAddr := NetworkAddress(pgConn.config.Host, pgConn.config.Port)
cancelConn, err = pgConn.config.DialFunc(ctx, serverNetwork, serverAddr)
if err != nil {
return err
}
}
defer cancelConn.Close()
@ -877,17 +930,11 @@ func (pgConn *PgConn) CancelRequest(ctx context.Context) error {
binary.BigEndian.PutUint32(buf[4:8], 80877102)
binary.BigEndian.PutUint32(buf[8:12], uint32(pgConn.pid))
binary.BigEndian.PutUint32(buf[12:16], uint32(pgConn.secretKey))
// Postgres will process the request and close the connection
// so when don't need to read the reply
// https://www.postgresql.org/docs/current/protocol-flow.html#id-1.10.6.7.10
_, err = cancelConn.Write(buf)
if err != nil {
return err
}
_, err = cancelConn.Read(buf)
if err != io.EOF {
return err
}
return nil
return err
}
// WaitForNotification waits for a LISTON/NOTIFY message to be received. It returns an error if a notification was not
@ -953,7 +1000,7 @@ func (pgConn *PgConn) Exec(ctx context.Context, sql string) *MultiResultReader {
}
pgConn.frontend.SendQuery(&pgproto3.Query{String: sql})
err := pgConn.frontend.Flush()
err := pgConn.flushWithPotentialWriteReadDeadlock()
if err != nil {
pgConn.asyncClose()
pgConn.contextWatcher.Unwatch()
@ -1064,7 +1111,7 @@ func (pgConn *PgConn) execExtendedSuffix(result *ResultReader) {
pgConn.frontend.SendExecute(&pgproto3.Execute{})
pgConn.frontend.SendSync(&pgproto3.Sync{})
err := pgConn.frontend.Flush()
err := pgConn.flushWithPotentialWriteReadDeadlock()
if err != nil {
pgConn.asyncClose()
result.concludeCommand(CommandTag{}, err)
@ -1097,7 +1144,7 @@ func (pgConn *PgConn) CopyTo(ctx context.Context, w io.Writer, sql string) (Comm
// Send copy to command
pgConn.frontend.SendQuery(&pgproto3.Query{String: sql})
err := pgConn.frontend.Flush()
err := pgConn.flushWithPotentialWriteReadDeadlock()
if err != nil {
pgConn.asyncClose()
pgConn.unlock()
@ -1153,85 +1200,91 @@ func (pgConn *PgConn) CopyFrom(ctx context.Context, r io.Reader, sql string) (Co
defer pgConn.contextWatcher.Unwatch()
}
// Send copy to command
// Send copy from query
pgConn.frontend.SendQuery(&pgproto3.Query{String: sql})
err := pgConn.frontend.Flush()
err := pgConn.flushWithPotentialWriteReadDeadlock()
if err != nil {
pgConn.asyncClose()
return CommandTag{}, err
}
err = pgConn.conn.SetReadDeadline(nbconn.NonBlockingDeadline)
if err != nil {
pgConn.asyncClose()
return CommandTag{}, err
}
nonblocking := true
defer func() {
if nonblocking {
pgConn.conn.SetReadDeadline(time.Time{})
// Send copy data
abortCopyChan := make(chan struct{})
copyErrChan := make(chan error, 1)
signalMessageChan := pgConn.signalMessage()
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
buf := iobufpool.Get(65536)
defer iobufpool.Put(buf)
(*buf)[0] = 'd'
for {
n, readErr := r.Read((*buf)[5:cap(*buf)])
if n > 0 {
*buf = (*buf)[0 : n+5]
pgio.SetInt32((*buf)[1:], int32(n+4))
writeErr := pgConn.frontend.SendUnbufferedEncodedCopyData(*buf)
if writeErr != nil {
// Write errors are always fatal, but we can't use asyncClose because we are in a different goroutine. Not
// setting pgConn.status or closing pgConn.cleanupDone for the same reason.
pgConn.conn.Close()
copyErrChan <- writeErr
return
}
}
if readErr != nil {
copyErrChan <- readErr
return
}
select {
case <-abortCopyChan:
return
default:
}
}
}()
buf := iobufpool.Get(65536)
defer iobufpool.Put(buf)
(*buf)[0] = 'd'
var readErr, pgErr error
for pgErr == nil {
// Read chunk from r.
var n int
n, readErr = r.Read((*buf)[5:cap(*buf)])
// Send chunk to PostgreSQL.
if n > 0 {
*buf = (*buf)[0 : n+5]
pgio.SetInt32((*buf)[1:], int32(n+4))
writeErr := pgConn.frontend.SendUnbufferedEncodedCopyData(*buf)
if writeErr != nil {
pgConn.asyncClose()
return CommandTag{}, err
}
}
// Abort loop if there was a read error.
if readErr != nil {
break
}
// Read messages until error or none available.
for pgErr == nil {
msg, err := pgConn.receiveMessage()
if err != nil {
if errors.Is(err, nbconn.ErrWouldBlock) {
break
}
pgConn.asyncClose()
var pgErr error
var copyErr error
for copyErr == nil && pgErr == nil {
select {
case copyErr = <-copyErrChan:
case <-signalMessageChan:
// If pgConn.receiveMessage encounters an error it will call pgConn.asyncClose. But that is a race condition with
// the goroutine. So instead check pgConn.bufferingReceiveErr which will have been set by the signalMessage. If an
// error is found then forcibly close the connection without sending the Terminate message.
if err := pgConn.bufferingReceiveErr; err != nil {
pgConn.status = connStatusClosed
pgConn.conn.Close()
close(pgConn.cleanupDone)
return CommandTag{}, normalizeTimeoutError(ctx, err)
}
msg, _ := pgConn.receiveMessage()
switch msg := msg.(type) {
case *pgproto3.ErrorResponse:
pgErr = ErrorResponseToPgError(msg)
break
default:
signalMessageChan = pgConn.signalMessage()
}
}
}
close(abortCopyChan)
// Make sure io goroutine finishes before writing.
wg.Wait()
err = pgConn.conn.SetReadDeadline(time.Time{})
if err != nil {
pgConn.asyncClose()
return CommandTag{}, err
}
nonblocking = false
if readErr == io.EOF || pgErr != nil {
if copyErr == io.EOF || pgErr != nil {
pgConn.frontend.Send(&pgproto3.CopyDone{})
} else {
pgConn.frontend.Send(&pgproto3.CopyFail{Message: readErr.Error()})
pgConn.frontend.Send(&pgproto3.CopyFail{Message: copyErr.Error()})
}
err = pgConn.frontend.Flush()
err = pgConn.flushWithPotentialWriteReadDeadlock()
if err != nil {
pgConn.asyncClose()
return CommandTag{}, err
@ -1426,7 +1479,8 @@ func (rr *ResultReader) NextRow() bool {
}
// FieldDescriptions returns the field descriptions for the current result set. The returned slice is only valid until
// the ResultReader is closed.
// the ResultReader is closed. It may return nil (for example, if the query did not return a result set or an error was
// encountered.)
func (rr *ResultReader) FieldDescriptions() []FieldDescription {
return rr.fieldDescriptions
}
@ -1592,7 +1646,9 @@ func (pgConn *PgConn) ExecBatch(ctx context.Context, batch *Batch) *MultiResultR
batch.buf = (&pgproto3.Sync{}).Encode(batch.buf)
pgConn.enterPotentialWriteReadDeadlock()
_, err := pgConn.conn.Write(batch.buf)
pgConn.exitPotentialWriteReadDeadlock()
if err != nil {
multiResult.closed = true
multiResult.err = err
@ -1620,29 +1676,72 @@ func (pgConn *PgConn) EscapeString(s string) (string, error) {
return strings.Replace(s, "'", "''", -1), nil
}
// CheckConn checks the underlying connection without writing any bytes. This is currently implemented by reading and
// buffering until the read would block or an error occurs. This can be used to check if the server has closed the
// connection. If this is done immediately before sending a query it reduces the chances a query will be sent that fails
// CheckConn checks the underlying connection without writing any bytes. This is currently implemented by doing a read
// with a very short deadline. This can be useful because a TCP connection can be broken such that a write will appear
// to succeed even though it will never actually reach the server. Reading immediately before a write will detect this
// condition. If this is done immediately before sending a query it reduces the chances a query will be sent that fails
// without the client knowing whether the server received it or not.
//
// Deprecated: CheckConn is deprecated in favor of Ping. CheckConn cannot detect all types of broken connections where
// the write would still appear to succeed. Prefer Ping unless on a high latency connection.
func (pgConn *PgConn) CheckConn() error {
err := pgConn.conn.BufferReadUntilBlock()
if err != nil && !errors.Is(err, nbconn.ErrWouldBlock) {
return err
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Millisecond)
defer cancel()
_, err := pgConn.ReceiveMessage(ctx)
if err != nil {
if !Timeout(err) {
return err
}
}
return nil
}
// Ping pings the server. This can be useful because a TCP connection can be broken such that a write will appear to
// succeed even though it will never actually reach the server. Pinging immediately before sending a query reduces the
// chances a query will be sent that fails without the client knowing whether the server received it or not.
func (pgConn *PgConn) Ping(ctx context.Context) error {
return pgConn.Exec(ctx, "-- ping").Close()
}
// makeCommandTag makes a CommandTag. It does not retain a reference to buf or buf's underlying memory.
func (pgConn *PgConn) makeCommandTag(buf []byte) CommandTag {
return CommandTag{s: string(buf)}
}
// enterPotentialWriteReadDeadlock must be called before a write that could deadlock if the server is simultaneously
// blocked writing to us.
func (pgConn *PgConn) enterPotentialWriteReadDeadlock() {
// The time to wait is somewhat arbitrary. A Write should only take as long as the syscall and memcpy to the OS
// outbound network buffer unless the buffer is full (which potentially is a block). It needs to be long enough for
// the normal case, but short enough not to kill performance if a block occurs.
//
// In addition, on Windows the default timer resolution is 15.6ms. So setting the timer to less than that is
// ineffective.
pgConn.slowWriteTimer.Reset(15 * time.Millisecond)
}
// exitPotentialWriteReadDeadlock must be called after a call to enterPotentialWriteReadDeadlock.
func (pgConn *PgConn) exitPotentialWriteReadDeadlock() {
if !pgConn.slowWriteTimer.Reset(time.Duration(math.MaxInt64)) {
pgConn.slowWriteTimer.Stop()
}
}
func (pgConn *PgConn) flushWithPotentialWriteReadDeadlock() error {
pgConn.enterPotentialWriteReadDeadlock()
err := pgConn.frontend.Flush()
pgConn.exitPotentialWriteReadDeadlock()
return err
}
// HijackedConn is the result of hijacking a connection.
//
// Due to the necessary exposure of internal implementation details, it is not covered by the semantic versioning
// compatibility.
type HijackedConn struct {
Conn nbconn.Conn // the non-blocking wrapper of the underlying TCP or unix domain socket connection
Conn net.Conn
PID uint32 // backend pid
SecretKey uint32 // key to use to send a cancel query message to the server
ParameterStatuses map[string]string // parameters that have been reported by the server
@ -1695,6 +1794,8 @@ func Construct(hc *HijackedConn) (*PgConn, error) {
}
pgConn.contextWatcher = newContextWatcher(pgConn.conn)
pgConn.bgReader = bgreader.New(pgConn.conn)
pgConn.slowWriteTimer = time.AfterFunc(time.Duration(math.MaxInt64), pgConn.bgReader.Start)
return pgConn, nil
}
@ -1817,7 +1918,7 @@ func (p *Pipeline) Flush() error {
return errors.New("pipeline closed")
}
err := p.conn.frontend.Flush()
err := p.conn.flushWithPotentialWriteReadDeadlock()
if err != nil {
err = normalizeTimeoutError(p.ctx, err)

7
vendor/github.com/jackc/pgx/v5/pgtype/array.go generated vendored
View file

@ -363,12 +363,13 @@ func quoteArrayElement(src string) string {
}
func isSpace(ch byte) bool {
// see https://github.com/postgres/postgres/blob/REL_12_STABLE/src/backend/parser/scansup.c#L224
return ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r' || ch == '\f'
// see array_isspace:
// https://github.com/postgres/postgres/blob/master/src/backend/utils/adt/arrayfuncs.c
return ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r' || ch == '\v' || ch == '\f'
}
func quoteArrayElementIfNeeded(src string) string {
if src == "" || (len(src) == 4 && strings.ToLower(src) == "null") || isSpace(src[0]) || isSpace(src[len(src)-1]) || strings.ContainsAny(src, `{},"\`) {
if src == "" || (len(src) == 4 && strings.EqualFold(src, "null")) || isSpace(src[0]) || isSpace(src[len(src)-1]) || strings.ContainsAny(src, `{},"\`) {
return quoteArrayElement(src)
}
return src

38
vendor/github.com/jackc/pgx/v5/pgtype/bool.go generated vendored
View file

@ -1,10 +1,12 @@
package pgtype
import (
"bytes"
"database/sql/driver"
"encoding/json"
"fmt"
"strconv"
"strings"
)
type BoolScanner interface {
@ -264,8 +266,8 @@ func (scanPlanTextAnyToBool) Scan(src []byte, dst any) error {
return fmt.Errorf("cannot scan NULL into %T", dst)
}
if len(src) != 1 {
return fmt.Errorf("invalid length for bool: %v", len(src))
if len(src) == 0 {
return fmt.Errorf("cannot scan empty string into %T", dst)
}
p, ok := (dst).(*bool)
@ -273,7 +275,12 @@ func (scanPlanTextAnyToBool) Scan(src []byte, dst any) error {
return ErrScanTargetTypeChanged
}
*p = src[0] == 't'
v, err := planTextToBool(src)
if err != nil {
return err
}
*p = v
return nil
}
@ -309,9 +316,28 @@ func (scanPlanTextAnyToBoolScanner) Scan(src []byte, dst any) error {
return s.ScanBool(Bool{})
}
if len(src) != 1 {
return fmt.Errorf("invalid length for bool: %v", len(src))
if len(src) == 0 {
return fmt.Errorf("cannot scan empty string into %T", dst)
}
return s.ScanBool(Bool{Bool: src[0] == 't', Valid: true})
v, err := planTextToBool(src)
if err != nil {
return err
}
return s.ScanBool(Bool{Bool: v, Valid: true})
}
// https://www.postgresql.org/docs/11/datatype-boolean.html
func planTextToBool(src []byte) (bool, error) {
s := string(bytes.ToLower(bytes.TrimSpace(src)))
switch {
case strings.HasPrefix("true", s), strings.HasPrefix("yes", s), s == "on", s == "1":
return true, nil
case strings.HasPrefix("false", s), strings.HasPrefix("no", s), strings.HasPrefix("off", s), s == "0":
return false, nil
default:
return false, fmt.Errorf("unknown boolean string representation %q", src)
}
}

5
vendor/github.com/jackc/pgx/v5/pgtype/convert.go generated vendored
View file

@ -64,6 +64,9 @@ func underlyingNumberType(val any) (any, bool) {
case reflect.String:
convVal := refVal.String()
return convVal, reflect.TypeOf(convVal) != refVal.Type()
case reflect.Bool:
convVal := refVal.Bool()
return convVal, reflect.TypeOf(convVal) != refVal.Type()
}
return nil, false
@ -262,7 +265,7 @@ func int64AssignTo(srcVal int64, srcValid bool, dst any) error {
*v = uint8(srcVal)
case *uint16:
if srcVal < 0 {
return fmt.Errorf("%d is less than zero for uint32", srcVal)
return fmt.Errorf("%d is less than zero for uint16", srcVal)
} else if srcVal > math.MaxUint16 {
return fmt.Errorf("%d is greater than maximum value for uint16", srcVal)
}

418
vendor/github.com/jackc/pgx/v5/pgtype/hstore.go generated vendored
View file

@ -1,14 +1,11 @@
package pgtype
import (
"bytes"
"database/sql/driver"
"encoding/binary"
"errors"
"fmt"
"strings"
"unicode"
"unicode/utf8"
"github.com/jackc/pgx/v5/internal/pgio"
)
@ -43,7 +40,7 @@ func (h *Hstore) Scan(src any) error {
switch src := src.(type) {
case string:
return scanPlanTextAnyToHstoreScanner{}.Scan([]byte(src), h)
return scanPlanTextAnyToHstoreScanner{}.scanString(src, h)
}
return fmt.Errorf("cannot scan %T", src)
@ -137,13 +134,20 @@ func (encodePlanHstoreCodecText) Encode(value any, buf []byte) (newBuf []byte, e
buf = append(buf, ',')
}
buf = append(buf, quoteHstoreElementIfNeeded(k)...)
// unconditionally quote hstore keys/values like Postgres does
// this avoids a Mac OS X Postgres hstore parsing bug:
// https://www.postgresql.org/message-id/CA%2BHWA9awUW0%2BRV_gO9r1ABZwGoZxPztcJxPy8vMFSTbTfi4jig%40mail.gmail.com
buf = append(buf, '"')
buf = append(buf, quoteArrayReplacer.Replace(k)...)
buf = append(buf, '"')
buf = append(buf, "=>"...)
if v == nil {
buf = append(buf, "NULL"...)
} else {
buf = append(buf, quoteHstoreElementIfNeeded(*v)...)
buf = append(buf, '"')
buf = append(buf, quoteArrayReplacer.Replace(*v)...)
buf = append(buf, '"')
}
}
@ -174,25 +178,28 @@ func (scanPlanBinaryHstoreToHstoreScanner) Scan(src []byte, dst any) error {
scanner := (dst).(HstoreScanner)
if src == nil {
return scanner.ScanHstore(Hstore{})
return scanner.ScanHstore(Hstore(nil))
}
rp := 0
if len(src[rp:]) < 4 {
const uint32Len = 4
if len(src[rp:]) < uint32Len {
return fmt.Errorf("hstore incomplete %v", src)
}
pairCount := int(int32(binary.BigEndian.Uint32(src[rp:])))
rp += 4
rp += uint32Len
hstore := make(Hstore, pairCount)
// one allocation for all *string, rather than one per string, just like text parsing
valueStrings := make([]string, pairCount)
for i := 0; i < pairCount; i++ {
if len(src[rp:]) < 4 {
if len(src[rp:]) < uint32Len {
return fmt.Errorf("hstore incomplete %v", src)
}
keyLen := int(int32(binary.BigEndian.Uint32(src[rp:])))
rp += 4
rp += uint32Len
if len(src[rp:]) < keyLen {
return fmt.Errorf("hstore incomplete %v", src)
@ -200,26 +207,17 @@ func (scanPlanBinaryHstoreToHstoreScanner) Scan(src []byte, dst any) error {
key := string(src[rp : rp+keyLen])
rp += keyLen
if len(src[rp:]) < 4 {
if len(src[rp:]) < uint32Len {
return fmt.Errorf("hstore incomplete %v", src)
}
valueLen := int(int32(binary.BigEndian.Uint32(src[rp:])))
rp += 4
var valueBuf []byte
if valueLen >= 0 {
valueBuf = src[rp : rp+valueLen]
valueStrings[i] = string(src[rp : rp+valueLen])
rp += valueLen
}
var value Text
err := scanPlanTextAnyToTextScanner{}.Scan(valueBuf, &value)
if err != nil {
return err
}
if value.Valid {
hstore[key] = &value.String
hstore[key] = &valueStrings[i]
} else {
hstore[key] = nil
}
@ -230,28 +228,22 @@ func (scanPlanBinaryHstoreToHstoreScanner) Scan(src []byte, dst any) error {
type scanPlanTextAnyToHstoreScanner struct{}
func (scanPlanTextAnyToHstoreScanner) Scan(src []byte, dst any) error {
func (s scanPlanTextAnyToHstoreScanner) Scan(src []byte, dst any) error {
scanner := (dst).(HstoreScanner)
if src == nil {
return scanner.ScanHstore(Hstore{})
return scanner.ScanHstore(Hstore(nil))
}
return s.scanString(string(src), scanner)
}
keys, values, err := parseHstore(string(src))
// scanString does not return nil hstore values because string cannot be nil.
func (scanPlanTextAnyToHstoreScanner) scanString(src string, scanner HstoreScanner) error {
hstore, err := parseHstore(src)
if err != nil {
return err
}
m := make(Hstore, len(keys))
for i := range keys {
if values[i].Valid {
m[keys[i]] = &values[i].String
} else {
m[keys[i]] = nil
}
}
return scanner.ScanHstore(m)
return scanner.ScanHstore(hstore)
}
func (c HstoreCodec) DecodeDatabaseSQLValue(m *Map, oid uint32, format int16, src []byte) (driver.Value, error) {
@ -271,191 +263,217 @@ func (c HstoreCodec) DecodeValue(m *Map, oid uint32, format int16, src []byte) (
return hstore, nil
}
var quoteHstoreReplacer = strings.NewReplacer(`\`, `\\`, `"`, `\"`)
func quoteHstoreElement(src string) string {
return `"` + quoteArrayReplacer.Replace(src) + `"`
}
func quoteHstoreElementIfNeeded(src string) string {
if src == "" || (len(src) == 4 && strings.ToLower(src) == "null") || strings.ContainsAny(src, ` {},"\=>`) {
return quoteArrayElement(src)
}
return src
}
const (
hsPre = iota
hsKey
hsSep
hsVal
hsNul
hsNext
)
type hstoreParser struct {
str string
pos int
str string
pos int
nextBackslash int
}
func newHSP(in string) *hstoreParser {
return &hstoreParser{
pos: 0,
str: in,
pos: 0,
str: in,
nextBackslash: strings.IndexByte(in, '\\'),
}
}
func (p *hstoreParser) Consume() (r rune, end bool) {
func (p *hstoreParser) atEnd() bool {
return p.pos >= len(p.str)
}
// consume returns the next byte of the string, or end if the string is done.
func (p *hstoreParser) consume() (b byte, end bool) {
if p.pos >= len(p.str) {
end = true
return
return 0, true
}
r, w := utf8.DecodeRuneInString(p.str[p.pos:])
p.pos += w
return
b = p.str[p.pos]
p.pos++
return b, false
}
func (p *hstoreParser) Peek() (r rune, end bool) {
if p.pos >= len(p.str) {
end = true
return
}
r, _ = utf8.DecodeRuneInString(p.str[p.pos:])
return
func unexpectedByteErr(actualB byte, expectedB byte) error {
return fmt.Errorf("expected '%c' ('%#v'); found '%c' ('%#v')", expectedB, expectedB, actualB, actualB)
}
// parseHstore parses the string representation of an hstore column (the same
// you would get from an ordinary SELECT) into two slices of keys and values. it
// is used internally in the default parsing of hstores.
func parseHstore(s string) (k []string, v []Text, err error) {
if s == "" {
return
// consumeExpectedByte consumes expectedB from the string, or returns an error.
func (p *hstoreParser) consumeExpectedByte(expectedB byte) error {
nextB, end := p.consume()
if end {
return fmt.Errorf("expected '%c' ('%#v'); found end", expectedB, expectedB)
}
if nextB != expectedB {
return unexpectedByteErr(nextB, expectedB)
}
return nil
}
// consumeExpected2 consumes two expected bytes or returns an error.
// This was a bit faster than using a string argument (better inlining? Not sure).
func (p *hstoreParser) consumeExpected2(one byte, two byte) error {
if p.pos+2 > len(p.str) {
return errors.New("unexpected end of string")
}
if p.str[p.pos] != one {
return unexpectedByteErr(p.str[p.pos], one)
}
if p.str[p.pos+1] != two {
return unexpectedByteErr(p.str[p.pos+1], two)
}
p.pos += 2
return nil
}
var errEOSInQuoted = errors.New(`found end before closing double-quote ('"')`)
// consumeDoubleQuoted consumes a double-quoted string from p. The double quote must have been
// parsed already. This copies the string from the backing string so it can be garbage collected.
func (p *hstoreParser) consumeDoubleQuoted() (string, error) {
// fast path: assume most keys/values do not contain escapes
nextDoubleQuote := strings.IndexByte(p.str[p.pos:], '"')
if nextDoubleQuote == -1 {
return "", errEOSInQuoted
}
nextDoubleQuote += p.pos
if p.nextBackslash == -1 || p.nextBackslash > nextDoubleQuote {
// clone the string from the source string to ensure it can be garbage collected separately
// TODO: use strings.Clone on Go 1.20; this could get optimized away
s := strings.Clone(p.str[p.pos:nextDoubleQuote])
p.pos = nextDoubleQuote + 1
return s, nil
}
buf := bytes.Buffer{}
keys := []string{}
values := []Text{}
// slow path: string contains escapes
s, err := p.consumeDoubleQuotedWithEscapes(p.nextBackslash)
p.nextBackslash = strings.IndexByte(p.str[p.pos:], '\\')
if p.nextBackslash != -1 {
p.nextBackslash += p.pos
}
return s, err
}
// consumeDoubleQuotedWithEscapes consumes a double-quoted string containing escapes, starting
// at p.pos, and with the first backslash at firstBackslash. This copies the string so it can be
// garbage collected separately.
func (p *hstoreParser) consumeDoubleQuotedWithEscapes(firstBackslash int) (string, error) {
// copy the prefix that does not contain backslashes
var builder strings.Builder
builder.WriteString(p.str[p.pos:firstBackslash])
// skip to the backslash
p.pos = firstBackslash
// copy bytes until the end, unescaping backslashes
for {
nextB, end := p.consume()
if end {
return "", errEOSInQuoted
} else if nextB == '"' {
break
} else if nextB == '\\' {
// escape: skip the backslash and copy the char
nextB, end = p.consume()
if end {
return "", errEOSInQuoted
}
if !(nextB == '\\' || nextB == '"') {
return "", fmt.Errorf("unexpected escape in quoted string: found '%#v'", nextB)
}
builder.WriteByte(nextB)
} else {
// normal byte: copy it
builder.WriteByte(nextB)
}
}
return builder.String(), nil
}
// consumePairSeparator consumes the Hstore pair separator ", " or returns an error.
func (p *hstoreParser) consumePairSeparator() error {
return p.consumeExpected2(',', ' ')
}
// consumeKVSeparator consumes the Hstore key/value separator "=>" or returns an error.
func (p *hstoreParser) consumeKVSeparator() error {
return p.consumeExpected2('=', '>')
}
// consumeDoubleQuotedOrNull consumes the Hstore key/value separator "=>" or returns an error.
func (p *hstoreParser) consumeDoubleQuotedOrNull() (Text, error) {
// peek at the next byte
if p.atEnd() {
return Text{}, errors.New("found end instead of value")
}
next := p.str[p.pos]
if next == 'N' {
// must be the exact string NULL: use consumeExpected2 twice
err := p.consumeExpected2('N', 'U')
if err != nil {
return Text{}, err
}
err = p.consumeExpected2('L', 'L')
if err != nil {
return Text{}, err
}
return Text{String: "", Valid: false}, nil
} else if next != '"' {
return Text{}, unexpectedByteErr(next, '"')
}
// skip the double quote
p.pos += 1
s, err := p.consumeDoubleQuoted()
if err != nil {
return Text{}, err
}
return Text{String: s, Valid: true}, nil
}
func parseHstore(s string) (Hstore, error) {
p := newHSP(s)
r, end := p.Consume()
state := hsPre
for !end {
switch state {
case hsPre:
if r == '"' {
state = hsKey
} else {
err = errors.New("String does not begin with \"")
}
case hsKey:
switch r {
case '"': //End of the key
keys = append(keys, buf.String())
buf = bytes.Buffer{}
state = hsSep
case '\\': //Potential escaped character
n, end := p.Consume()
switch {
case end:
err = errors.New("Found EOS in key, expecting character or \"")
case n == '"', n == '\\':
buf.WriteRune(n)
default:
buf.WriteRune(r)
buf.WriteRune(n)
}
default: //Any other character
buf.WriteRune(r)
}
case hsSep:
if r == '=' {
r, end = p.Consume()
switch {
case end:
err = errors.New("Found EOS after '=', expecting '>'")
case r == '>':
r, end = p.Consume()
switch {
case end:
err = errors.New("Found EOS after '=>', expecting '\"' or 'NULL'")
case r == '"':
state = hsVal
case r == 'N':
state = hsNul
default:
err = fmt.Errorf("Invalid character '%c' after '=>', expecting '\"' or 'NULL'", r)
}
default:
err = fmt.Errorf("Invalid character after '=', expecting '>'")
}
} else {
err = fmt.Errorf("Invalid character '%c' after value, expecting '='", r)
}
case hsVal:
switch r {
case '"': //End of the value
values = append(values, Text{String: buf.String(), Valid: true})
buf = bytes.Buffer{}
state = hsNext
case '\\': //Potential escaped character
n, end := p.Consume()
switch {
case end:
err = errors.New("Found EOS in key, expecting character or \"")
case n == '"', n == '\\':
buf.WriteRune(n)
default:
buf.WriteRune(r)
buf.WriteRune(n)
}
default: //Any other character
buf.WriteRune(r)
}
case hsNul:
nulBuf := make([]rune, 3)
nulBuf[0] = r
for i := 1; i < 3; i++ {
r, end = p.Consume()
if end {
err = errors.New("Found EOS in NULL value")
return
}
nulBuf[i] = r
}
if nulBuf[0] == 'U' && nulBuf[1] == 'L' && nulBuf[2] == 'L' {
values = append(values, Text{})
state = hsNext
} else {
err = fmt.Errorf("Invalid NULL value: 'N%s'", string(nulBuf))
}
case hsNext:
if r == ',' {
r, end = p.Consume()
switch {
case end:
err = errors.New("Found EOS after ',', expcting space")
case (unicode.IsSpace(r)):
r, end = p.Consume()
state = hsKey
default:
err = fmt.Errorf("Invalid character '%c' after ', ', expecting \"", r)
}
} else {
err = fmt.Errorf("Invalid character '%c' after value, expecting ','", r)
// This is an over-estimate of the number of key/value pairs. Use '>' because I am guessing it
// is less likely to occur in keys/values than '=' or ','.
numPairsEstimate := strings.Count(s, ">")
// makes one allocation of strings for the entire Hstore, rather than one allocation per value.
valueStrings := make([]string, 0, numPairsEstimate)
result := make(Hstore, numPairsEstimate)
first := true
for !p.atEnd() {
if !first {
err := p.consumePairSeparator()
if err != nil {
return nil, err
}
} else {
first = false
}
err := p.consumeExpectedByte('"')
if err != nil {
return
return nil, err
}
key, err := p.consumeDoubleQuoted()
if err != nil {
return nil, err
}
err = p.consumeKVSeparator()
if err != nil {
return nil, err
}
value, err := p.consumeDoubleQuotedOrNull()
if err != nil {
return nil, err
}
if value.Valid {
valueStrings = append(valueStrings, value.String)
result[key] = &valueStrings[len(valueStrings)-1]
} else {
result[key] = nil
}
r, end = p.Consume()
}
if state != hsNext {
err = errors.New("Improperly formatted hstore")
return
}
k = keys
v = values
return
return result, nil
}

2
vendor/github.com/jackc/pgx/v5/pgtype/json.go generated vendored
View file

@ -150,7 +150,7 @@ func (scanPlanJSONToJSONUnmarshal) Scan(src []byte, dst any) error {
if dstValue.Kind() == reflect.Ptr {
el := dstValue.Elem()
switch el.Kind() {
case reflect.Ptr, reflect.Slice, reflect.Map:
case reflect.Ptr, reflect.Slice, reflect.Map, reflect.Interface:
el.Set(reflect.Zero(el.Type()))
return nil
}

247
vendor/github.com/jackc/pgx/v5/pgtype/pgtype.go generated vendored
View file

@ -147,7 +147,7 @@ const (
BinaryFormatCode = 1
)
// A Codec converts between Go and PostgreSQL values.
// A Codec converts between Go and PostgreSQL values. A Codec must not be mutated after it is registered with a Map.
type Codec interface {
// FormatSupported returns true if the format is supported.
FormatSupported(int16) bool
@ -178,6 +178,7 @@ func (e *nullAssignmentError) Error() string {
return fmt.Sprintf("cannot assign NULL to %T", e.dst)
}
// Type represents a PostgreSQL data type. It must not be mutated after it is registered with a Map.
type Type struct {
Codec Codec
Name string
@ -211,7 +212,9 @@ type Map struct {
}
func NewMap() *Map {
m := &Map{
defaultMapInitOnce.Do(initDefaultMap)
return &Map{
oidToType: make(map[uint32]*Type),
nameToType: make(map[string]*Type),
reflectTypeToName: make(map[reflect.Type]string),
@ -240,184 +243,9 @@ func NewMap() *Map {
TryWrapPtrArrayScanPlan,
},
}
// Base types
m.RegisterType(&Type{Name: "aclitem", OID: ACLItemOID, Codec: &TextFormatOnlyCodec{TextCodec{}}})
m.RegisterType(&Type{Name: "bit", OID: BitOID, Codec: BitsCodec{}})
m.RegisterType(&Type{Name: "bool", OID: BoolOID, Codec: BoolCodec{}})
m.RegisterType(&Type{Name: "box", OID: BoxOID, Codec: BoxCodec{}})
m.RegisterType(&Type{Name: "bpchar", OID: BPCharOID, Codec: TextCodec{}})
m.RegisterType(&Type{Name: "bytea", OID: ByteaOID, Codec: ByteaCodec{}})
m.RegisterType(&Type{Name: "char", OID: QCharOID, Codec: QCharCodec{}})
m.RegisterType(&Type{Name: "cid", OID: CIDOID, Codec: Uint32Codec{}})
m.RegisterType(&Type{Name: "cidr", OID: CIDROID, Codec: InetCodec{}})
m.RegisterType(&Type{Name: "circle", OID: CircleOID, Codec: CircleCodec{}})
m.RegisterType(&Type{Name: "date", OID: DateOID, Codec: DateCodec{}})
m.RegisterType(&Type{Name: "float4", OID: Float4OID, Codec: Float4Codec{}})
m.RegisterType(&Type{Name: "float8", OID: Float8OID, Codec: Float8Codec{}})
m.RegisterType(&Type{Name: "inet", OID: InetOID, Codec: InetCodec{}})
m.RegisterType(&Type{Name: "int2", OID: Int2OID, Codec: Int2Codec{}})
m.RegisterType(&Type{Name: "int4", OID: Int4OID, Codec: Int4Codec{}})
m.RegisterType(&Type{Name: "int8", OID: Int8OID, Codec: Int8Codec{}})
m.RegisterType(&Type{Name: "interval", OID: IntervalOID, Codec: IntervalCodec{}})
m.RegisterType(&Type{Name: "json", OID: JSONOID, Codec: JSONCodec{}})
m.RegisterType(&Type{Name: "jsonb", OID: JSONBOID, Codec: JSONBCodec{}})
m.RegisterType(&Type{Name: "jsonpath", OID: JSONPathOID, Codec: &TextFormatOnlyCodec{TextCodec{}}})
m.RegisterType(&Type{Name: "line", OID: LineOID, Codec: LineCodec{}})
m.RegisterType(&Type{Name: "lseg", OID: LsegOID, Codec: LsegCodec{}})
m.RegisterType(&Type{Name: "macaddr", OID: MacaddrOID, Codec: MacaddrCodec{}})
m.RegisterType(&Type{Name: "name", OID: NameOID, Codec: TextCodec{}})
m.RegisterType(&Type{Name: "numeric", OID: NumericOID, Codec: NumericCodec{}})
m.RegisterType(&Type{Name: "oid", OID: OIDOID, Codec: Uint32Codec{}})
m.RegisterType(&Type{Name: "path", OID: PathOID, Codec: PathCodec{}})
m.RegisterType(&Type{Name: "point", OID: PointOID, Codec: PointCodec{}})
m.RegisterType(&Type{Name: "polygon", OID: PolygonOID, Codec: PolygonCodec{}})
m.RegisterType(&Type{Name: "record", OID: RecordOID, Codec: RecordCodec{}})
m.RegisterType(&Type{Name: "text", OID: TextOID, Codec: TextCodec{}})
m.RegisterType(&Type{Name: "tid", OID: TIDOID, Codec: TIDCodec{}})
m.RegisterType(&Type{Name: "time", OID: TimeOID, Codec: TimeCodec{}})
m.RegisterType(&Type{Name: "timestamp", OID: TimestampOID, Codec: TimestampCodec{}})
m.RegisterType(&Type{Name: "timestamptz", OID: TimestamptzOID, Codec: TimestamptzCodec{}})
m.RegisterType(&Type{Name: "unknown", OID: UnknownOID, Codec: TextCodec{}})
m.RegisterType(&Type{Name: "uuid", OID: UUIDOID, Codec: UUIDCodec{}})
m.RegisterType(&Type{Name: "varbit", OID: VarbitOID, Codec: BitsCodec{}})
m.RegisterType(&Type{Name: "varchar", OID: VarcharOID, Codec: TextCodec{}})
m.RegisterType(&Type{Name: "xid", OID: XIDOID, Codec: Uint32Codec{}})
// Range types
m.RegisterType(&Type{Name: "daterange", OID: DaterangeOID, Codec: &RangeCodec{ElementType: m.oidToType[DateOID]}})
m.RegisterType(&Type{Name: "int4range", OID: Int4rangeOID, Codec: &RangeCodec{ElementType: m.oidToType[Int4OID]}})
m.RegisterType(&Type{Name: "int8range", OID: Int8rangeOID, Codec: &RangeCodec{ElementType: m.oidToType[Int8OID]}})
m.RegisterType(&Type{Name: "numrange", OID: NumrangeOID, Codec: &RangeCodec{ElementType: m.oidToType[NumericOID]}})
m.RegisterType(&Type{Name: "tsrange", OID: TsrangeOID, Codec: &RangeCodec{ElementType: m.oidToType[TimestampOID]}})
m.RegisterType(&Type{Name: "tstzrange", OID: TstzrangeOID, Codec: &RangeCodec{ElementType: m.oidToType[TimestamptzOID]}})
// Multirange types
m.RegisterType(&Type{Name: "datemultirange", OID: DatemultirangeOID, Codec: &MultirangeCodec{ElementType: m.oidToType[DaterangeOID]}})
m.RegisterType(&Type{Name: "int4multirange", OID: Int4multirangeOID, Codec: &MultirangeCodec{ElementType: m.oidToType[Int4rangeOID]}})
m.RegisterType(&Type{Name: "int8multirange", OID: Int8multirangeOID, Codec: &MultirangeCodec{ElementType: m.oidToType[Int8rangeOID]}})
m.RegisterType(&Type{Name: "nummultirange", OID: NummultirangeOID, Codec: &MultirangeCodec{ElementType: m.oidToType[NumrangeOID]}})
m.RegisterType(&Type{Name: "tsmultirange", OID: TsmultirangeOID, Codec: &MultirangeCodec{ElementType: m.oidToType[TsrangeOID]}})
m.RegisterType(&Type{Name: "tstzmultirange", OID: TstzmultirangeOID, Codec: &MultirangeCodec{ElementType: m.oidToType[TstzrangeOID]}})
// Array types
m.RegisterType(&Type{Name: "_aclitem", OID: ACLItemArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[ACLItemOID]}})
m.RegisterType(&Type{Name: "_bit", OID: BitArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[BitOID]}})
m.RegisterType(&Type{Name: "_bool", OID: BoolArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[BoolOID]}})
m.RegisterType(&Type{Name: "_box", OID: BoxArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[BoxOID]}})
m.RegisterType(&Type{Name: "_bpchar", OID: BPCharArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[BPCharOID]}})
m.RegisterType(&Type{Name: "_bytea", OID: ByteaArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[ByteaOID]}})
m.RegisterType(&Type{Name: "_char", OID: QCharArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[QCharOID]}})
m.RegisterType(&Type{Name: "_cid", OID: CIDArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[CIDOID]}})
m.RegisterType(&Type{Name: "_cidr", OID: CIDRArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[CIDROID]}})
m.RegisterType(&Type{Name: "_circle", OID: CircleArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[CircleOID]}})
m.RegisterType(&Type{Name: "_date", OID: DateArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[DateOID]}})
m.RegisterType(&Type{Name: "_daterange", OID: DaterangeArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[DaterangeOID]}})
m.RegisterType(&Type{Name: "_float4", OID: Float4ArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[Float4OID]}})
m.RegisterType(&Type{Name: "_float8", OID: Float8ArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[Float8OID]}})
m.RegisterType(&Type{Name: "_inet", OID: InetArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[InetOID]}})
m.RegisterType(&Type{Name: "_int2", OID: Int2ArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[Int2OID]}})
m.RegisterType(&Type{Name: "_int4", OID: Int4ArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[Int4OID]}})
m.RegisterType(&Type{Name: "_int4range", OID: Int4rangeArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[Int4rangeOID]}})
m.RegisterType(&Type{Name: "_int8", OID: Int8ArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[Int8OID]}})
m.RegisterType(&Type{Name: "_int8range", OID: Int8rangeArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[Int8rangeOID]}})
m.RegisterType(&Type{Name: "_interval", OID: IntervalArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[IntervalOID]}})
m.RegisterType(&Type{Name: "_json", OID: JSONArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[JSONOID]}})
m.RegisterType(&Type{Name: "_jsonb", OID: JSONBArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[JSONBOID]}})
m.RegisterType(&Type{Name: "_jsonpath", OID: JSONPathArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[JSONPathOID]}})
m.RegisterType(&Type{Name: "_line", OID: LineArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[LineOID]}})
m.RegisterType(&Type{Name: "_lseg", OID: LsegArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[LsegOID]}})
m.RegisterType(&Type{Name: "_macaddr", OID: MacaddrArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[MacaddrOID]}})
m.RegisterType(&Type{Name: "_name", OID: NameArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[NameOID]}})
m.RegisterType(&Type{Name: "_numeric", OID: NumericArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[NumericOID]}})
m.RegisterType(&Type{Name: "_numrange", OID: NumrangeArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[NumrangeOID]}})
m.RegisterType(&Type{Name: "_oid", OID: OIDArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[OIDOID]}})
m.RegisterType(&Type{Name: "_path", OID: PathArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[PathOID]}})
m.RegisterType(&Type{Name: "_point", OID: PointArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[PointOID]}})
m.RegisterType(&Type{Name: "_polygon", OID: PolygonArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[PolygonOID]}})
m.RegisterType(&Type{Name: "_record", OID: RecordArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[RecordOID]}})
m.RegisterType(&Type{Name: "_text", OID: TextArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[TextOID]}})
m.RegisterType(&Type{Name: "_tid", OID: TIDArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[TIDOID]}})
m.RegisterType(&Type{Name: "_time", OID: TimeArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[TimeOID]}})
m.RegisterType(&Type{Name: "_timestamp", OID: TimestampArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[TimestampOID]}})
m.RegisterType(&Type{Name: "_timestamptz", OID: TimestamptzArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[TimestamptzOID]}})
m.RegisterType(&Type{Name: "_tsrange", OID: TsrangeArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[TsrangeOID]}})
m.RegisterType(&Type{Name: "_tstzrange", OID: TstzrangeArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[TstzrangeOID]}})
m.RegisterType(&Type{Name: "_uuid", OID: UUIDArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[UUIDOID]}})
m.RegisterType(&Type{Name: "_varbit", OID: VarbitArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[VarbitOID]}})
m.RegisterType(&Type{Name: "_varchar", OID: VarcharArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[VarcharOID]}})
m.RegisterType(&Type{Name: "_xid", OID: XIDArrayOID, Codec: &ArrayCodec{ElementType: m.oidToType[XIDOID]}})
// Integer types that directly map to a PostgreSQL type
registerDefaultPgTypeVariants[int16](m, "int2")
registerDefaultPgTypeVariants[int32](m, "int4")
registerDefaultPgTypeVariants[int64](m, "int8")
// Integer types that do not have a direct match to a PostgreSQL type
registerDefaultPgTypeVariants[int8](m, "int8")
registerDefaultPgTypeVariants[int](m, "int8")
registerDefaultPgTypeVariants[uint8](m, "int8")
registerDefaultPgTypeVariants[uint16](m, "int8")
registerDefaultPgTypeVariants[uint32](m, "int8")
registerDefaultPgTypeVariants[uint64](m, "numeric")
registerDefaultPgTypeVariants[uint](m, "numeric")
registerDefaultPgTypeVariants[float32](m, "float4")
registerDefaultPgTypeVariants[float64](m, "float8")
registerDefaultPgTypeVariants[bool](m, "bool")
registerDefaultPgTypeVariants[time.Time](m, "timestamptz")
registerDefaultPgTypeVariants[time.Duration](m, "interval")
registerDefaultPgTypeVariants[string](m, "text")
registerDefaultPgTypeVariants[[]byte](m, "bytea")
registerDefaultPgTypeVariants[net.IP](m, "inet")
registerDefaultPgTypeVariants[net.IPNet](m, "cidr")
registerDefaultPgTypeVariants[netip.Addr](m, "inet")
registerDefaultPgTypeVariants[netip.Prefix](m, "cidr")
// pgtype provided structs
registerDefaultPgTypeVariants[Bits](m, "varbit")
registerDefaultPgTypeVariants[Bool](m, "bool")
registerDefaultPgTypeVariants[Box](m, "box")
registerDefaultPgTypeVariants[Circle](m, "circle")
registerDefaultPgTypeVariants[Date](m, "date")
registerDefaultPgTypeVariants[Range[Date]](m, "daterange")
registerDefaultPgTypeVariants[Multirange[Range[Date]]](m, "datemultirange")
registerDefaultPgTypeVariants[Float4](m, "float4")
registerDefaultPgTypeVariants[Float8](m, "float8")
registerDefaultPgTypeVariants[Range[Float8]](m, "numrange") // There is no PostgreSQL builtin float8range so map it to numrange.
registerDefaultPgTypeVariants[Multirange[Range[Float8]]](m, "nummultirange") // There is no PostgreSQL builtin float8multirange so map it to nummultirange.
registerDefaultPgTypeVariants[Int2](m, "int2")
registerDefaultPgTypeVariants[Int4](m, "int4")
registerDefaultPgTypeVariants[Range[Int4]](m, "int4range")
registerDefaultPgTypeVariants[Multirange[Range[Int4]]](m, "int4multirange")
registerDefaultPgTypeVariants[Int8](m, "int8")
registerDefaultPgTypeVariants[Range[Int8]](m, "int8range")
registerDefaultPgTypeVariants[Multirange[Range[Int8]]](m, "int8multirange")
registerDefaultPgTypeVariants[Interval](m, "interval")
registerDefaultPgTypeVariants[Line](m, "line")
registerDefaultPgTypeVariants[Lseg](m, "lseg")
registerDefaultPgTypeVariants[Numeric](m, "numeric")
registerDefaultPgTypeVariants[Range[Numeric]](m, "numrange")
registerDefaultPgTypeVariants[Multirange[Range[Numeric]]](m, "nummultirange")
registerDefaultPgTypeVariants[Path](m, "path")
registerDefaultPgTypeVariants[Point](m, "point")
registerDefaultPgTypeVariants[Polygon](m, "polygon")
registerDefaultPgTypeVariants[TID](m, "tid")
registerDefaultPgTypeVariants[Text](m, "text")
registerDefaultPgTypeVariants[Time](m, "time")
registerDefaultPgTypeVariants[Timestamp](m, "timestamp")
registerDefaultPgTypeVariants[Timestamptz](m, "timestamptz")
registerDefaultPgTypeVariants[Range[Timestamp]](m, "tsrange")
registerDefaultPgTypeVariants[Multirange[Range[Timestamp]]](m, "tsmultirange")
registerDefaultPgTypeVariants[Range[Timestamptz]](m, "tstzrange")
registerDefaultPgTypeVariants[Multirange[Range[Timestamptz]]](m, "tstzmultirange")
registerDefaultPgTypeVariants[UUID](m, "uuid")
return m
}
// RegisterType registers a data type with the Map. t must not be mutated after it is registered.
func (m *Map) RegisterType(t *Type) {
m.oidToType[t.OID] = t
m.nameToType[t.Name] = t
@ -449,13 +277,22 @@ func (m *Map) RegisterDefaultPgType(value any, name string) {
}
}
// TypeForOID returns the Type registered for the given OID. The returned Type must not be mutated.
func (m *Map) TypeForOID(oid uint32) (*Type, bool) {
dt, ok := m.oidToType[oid]
if dt, ok := m.oidToType[oid]; ok {
return dt, true
}
dt, ok := defaultMap.oidToType[oid]
return dt, ok
}
// TypeForName returns the Type registered for the given name. The returned Type must not be mutated.
func (m *Map) TypeForName(name string) (*Type, bool) {
dt, ok := m.nameToType[name]
if dt, ok := m.nameToType[name]; ok {
return dt, true
}
dt, ok := defaultMap.nameToType[name]
return dt, ok
}
@ -463,30 +300,39 @@ func (m *Map) buildReflectTypeToType() {
m.reflectTypeToType = make(map[reflect.Type]*Type)
for reflectType, name := range m.reflectTypeToName {
if dt, ok := m.nameToType[name]; ok {
if dt, ok := m.TypeForName(name); ok {
m.reflectTypeToType[reflectType] = dt
}
}
}
// TypeForValue finds a data type suitable for v. Use RegisterType to register types that can encode and decode
// themselves. Use RegisterDefaultPgType to register that can be handled by a registered data type.
// themselves. Use RegisterDefaultPgType to register that can be handled by a registered data type. The returned Type
// must not be mutated.
func (m *Map) TypeForValue(v any) (*Type, bool) {
if m.reflectTypeToType == nil {
m.buildReflectTypeToType()
}
dt, ok := m.reflectTypeToType[reflect.TypeOf(v)]
if dt, ok := m.reflectTypeToType[reflect.TypeOf(v)]; ok {
return dt, true
}
dt, ok := defaultMap.reflectTypeToType[reflect.TypeOf(v)]
return dt, ok
}
// FormatCodeForOID returns the preferred format code for type oid. If the type is not registered it returns the text
// format code.
func (m *Map) FormatCodeForOID(oid uint32) int16 {
fc, ok := m.oidToFormatCode[oid]
if ok {
if fc, ok := m.oidToFormatCode[oid]; ok {
return fc
}
if fc, ok := defaultMap.oidToFormatCode[oid]; ok {
return fc
}
return TextFormatCode
}
@ -587,6 +433,14 @@ func (plan *scanPlanFail) Scan(src []byte, dst any) error {
return plan.Scan(src, dst)
}
}
for oid := range defaultMap.oidToType {
if _, ok := plan.m.oidToType[oid]; !ok {
plan := plan.m.planScan(oid, plan.formatCode, dst)
if _, ok := plan.(*scanPlanFail); !ok {
return plan.Scan(src, dst)
}
}
}
}
var format string
@ -600,7 +454,7 @@ func (plan *scanPlanFail) Scan(src []byte, dst any) error {
}
var dataTypeName string
if t, ok := plan.m.oidToType[plan.oid]; ok {
if t, ok := plan.m.TypeForOID(plan.oid); ok {
dataTypeName = t.Name
} else {
dataTypeName = "unknown type"
@ -666,6 +520,7 @@ var elemKindToPointerTypes map[reflect.Kind]reflect.Type = map[reflect.Kind]refl
reflect.Float32: reflect.TypeOf(new(float32)),
reflect.Float64: reflect.TypeOf(new(float64)),
reflect.String: reflect.TypeOf(new(string)),
reflect.Bool: reflect.TypeOf(new(bool)),
}
type underlyingTypeScanPlan struct {
@ -1089,15 +944,16 @@ func TryWrapPtrSliceScanPlan(target any) (plan WrappedScanPlanNextSetter, nextVa
return &wrapPtrSliceScanPlan[time.Time]{}, (*FlatArray[time.Time])(target), true
}
targetValue := reflect.ValueOf(target)
if targetValue.Kind() != reflect.Ptr {
targetType := reflect.TypeOf(target)
if targetType.Kind() != reflect.Ptr {
return nil, nil, false
}
targetElemValue := targetValue.Elem()
targetElemType := targetType.Elem()
if targetElemValue.Kind() == reflect.Slice {
return &wrapPtrSliceReflectScanPlan{}, &anySliceArrayReflect{slice: targetElemValue}, true
if targetElemType.Kind() == reflect.Slice {
slice := reflect.New(targetElemType).Elem()
return &wrapPtrSliceReflectScanPlan{}, &anySliceArrayReflect{slice: slice}, true
}
return nil, nil, false
}
@ -1198,6 +1054,10 @@ func (m *Map) PlanScan(oid uint32, formatCode int16, target any) ScanPlan {
}
func (m *Map) planScan(oid uint32, formatCode int16, target any) ScanPlan {
if target == nil {
return &scanPlanFail{m: m, oid: oid, formatCode: formatCode}
}
if _, ok := target.(*UndecodedBytes); ok {
return scanPlanAnyToUndecodedBytes{}
}
@ -1514,6 +1374,7 @@ var kindToTypes map[reflect.Kind]reflect.Type = map[reflect.Kind]reflect.Type{
reflect.Float32: reflect.TypeOf(float32(0)),
reflect.Float64: reflect.TypeOf(float64(0)),
reflect.String: reflect.TypeOf(""),
reflect.Bool: reflect.TypeOf(false),
}
type underlyingTypeEncodePlan struct {
@ -2039,13 +1900,13 @@ func newEncodeError(value any, m *Map, oid uint32, formatCode int16, err error)
}
var dataTypeName string
if t, ok := m.oidToType[oid]; ok {
if t, ok := m.TypeForOID(oid); ok {
dataTypeName = t.Name
} else {
dataTypeName = "unknown type"
}
return fmt.Errorf("unable to encode %#v into %s format for %s (OID %d): %s", value, format, dataTypeName, oid, err)
return fmt.Errorf("unable to encode %#v into %s format for %s (OID %d): %w", value, format, dataTypeName, oid, err)
}
// Encode appends the encoded bytes of value to buf. If value is the SQL value NULL then append nothing and return

223
vendor/github.com/jackc/pgx/v5/pgtype/pgtype_default.go generated vendored Normal file
View file

@ -0,0 +1,223 @@
package pgtype
import (
"net"
"net/netip"
"reflect"
"sync"
"time"
)
var (
// defaultMap contains default mappings between PostgreSQL server types and Go type handling logic.
defaultMap *Map
defaultMapInitOnce = sync.Once{}
)
func initDefaultMap() {
defaultMap = &Map{
oidToType: make(map[uint32]*Type),
nameToType: make(map[string]*Type),
reflectTypeToName: make(map[reflect.Type]string),
oidToFormatCode: make(map[uint32]int16),
memoizedScanPlans: make(map[uint32]map[reflect.Type][2]ScanPlan),
memoizedEncodePlans: make(map[uint32]map[reflect.Type][2]EncodePlan),
TryWrapEncodePlanFuncs: []TryWrapEncodePlanFunc{
TryWrapDerefPointerEncodePlan,
TryWrapBuiltinTypeEncodePlan,
TryWrapFindUnderlyingTypeEncodePlan,
TryWrapStructEncodePlan,
TryWrapSliceEncodePlan,
TryWrapMultiDimSliceEncodePlan,
TryWrapArrayEncodePlan,
},
TryWrapScanPlanFuncs: []TryWrapScanPlanFunc{
TryPointerPointerScanPlan,
TryWrapBuiltinTypeScanPlan,
TryFindUnderlyingTypeScanPlan,
TryWrapStructScanPlan,
TryWrapPtrSliceScanPlan,
TryWrapPtrMultiDimSliceScanPlan,
TryWrapPtrArrayScanPlan,
},
}
// Base types
defaultMap.RegisterType(&Type{Name: "aclitem", OID: ACLItemOID, Codec: &TextFormatOnlyCodec{TextCodec{}}})
defaultMap.RegisterType(&Type{Name: "bit", OID: BitOID, Codec: BitsCodec{}})
defaultMap.RegisterType(&Type{Name: "bool", OID: BoolOID, Codec: BoolCodec{}})
defaultMap.RegisterType(&Type{Name: "box", OID: BoxOID, Codec: BoxCodec{}})
defaultMap.RegisterType(&Type{Name: "bpchar", OID: BPCharOID, Codec: TextCodec{}})
defaultMap.RegisterType(&Type{Name: "bytea", OID: ByteaOID, Codec: ByteaCodec{}})
defaultMap.RegisterType(&Type{Name: "char", OID: QCharOID, Codec: QCharCodec{}})
defaultMap.RegisterType(&Type{Name: "cid", OID: CIDOID, Codec: Uint32Codec{}})
defaultMap.RegisterType(&Type{Name: "cidr", OID: CIDROID, Codec: InetCodec{}})
defaultMap.RegisterType(&Type{Name: "circle", OID: CircleOID, Codec: CircleCodec{}})
defaultMap.RegisterType(&Type{Name: "date", OID: DateOID, Codec: DateCodec{}})
defaultMap.RegisterType(&Type{Name: "float4", OID: Float4OID, Codec: Float4Codec{}})
defaultMap.RegisterType(&Type{Name: "float8", OID: Float8OID, Codec: Float8Codec{}})
defaultMap.RegisterType(&Type{Name: "inet", OID: InetOID, Codec: InetCodec{}})
defaultMap.RegisterType(&Type{Name: "int2", OID: Int2OID, Codec: Int2Codec{}})
defaultMap.RegisterType(&Type{Name: "int4", OID: Int4OID, Codec: Int4Codec{}})
defaultMap.RegisterType(&Type{Name: "int8", OID: Int8OID, Codec: Int8Codec{}})
defaultMap.RegisterType(&Type{Name: "interval", OID: IntervalOID, Codec: IntervalCodec{}})
defaultMap.RegisterType(&Type{Name: "json", OID: JSONOID, Codec: JSONCodec{}})
defaultMap.RegisterType(&Type{Name: "jsonb", OID: JSONBOID, Codec: JSONBCodec{}})
defaultMap.RegisterType(&Type{Name: "jsonpath", OID: JSONPathOID, Codec: &TextFormatOnlyCodec{TextCodec{}}})
defaultMap.RegisterType(&Type{Name: "line", OID: LineOID, Codec: LineCodec{}})
defaultMap.RegisterType(&Type{Name: "lseg", OID: LsegOID, Codec: LsegCodec{}})
defaultMap.RegisterType(&Type{Name: "macaddr", OID: MacaddrOID, Codec: MacaddrCodec{}})
defaultMap.RegisterType(&Type{Name: "name", OID: NameOID, Codec: TextCodec{}})
defaultMap.RegisterType(&Type{Name: "numeric", OID: NumericOID, Codec: NumericCodec{}})
defaultMap.RegisterType(&Type{Name: "oid", OID: OIDOID, Codec: Uint32Codec{}})
defaultMap.RegisterType(&Type{Name: "path", OID: PathOID, Codec: PathCodec{}})
defaultMap.RegisterType(&Type{Name: "point", OID: PointOID, Codec: PointCodec{}})
defaultMap.RegisterType(&Type{Name: "polygon", OID: PolygonOID, Codec: PolygonCodec{}})
defaultMap.RegisterType(&Type{Name: "record", OID: RecordOID, Codec: RecordCodec{}})
defaultMap.RegisterType(&Type{Name: "text", OID: TextOID, Codec: TextCodec{}})
defaultMap.RegisterType(&Type{Name: "tid", OID: TIDOID, Codec: TIDCodec{}})
defaultMap.RegisterType(&Type{Name: "time", OID: TimeOID, Codec: TimeCodec{}})
defaultMap.RegisterType(&Type{Name: "timestamp", OID: TimestampOID, Codec: TimestampCodec{}})
defaultMap.RegisterType(&Type{Name: "timestamptz", OID: TimestamptzOID, Codec: TimestamptzCodec{}})
defaultMap.RegisterType(&Type{Name: "unknown", OID: UnknownOID, Codec: TextCodec{}})
defaultMap.RegisterType(&Type{Name: "uuid", OID: UUIDOID, Codec: UUIDCodec{}})
defaultMap.RegisterType(&Type{Name: "varbit", OID: VarbitOID, Codec: BitsCodec{}})
defaultMap.RegisterType(&Type{Name: "varchar", OID: VarcharOID, Codec: TextCodec{}})
defaultMap.RegisterType(&Type{Name: "xid", OID: XIDOID, Codec: Uint32Codec{}})
// Range types
defaultMap.RegisterType(&Type{Name: "daterange", OID: DaterangeOID, Codec: &RangeCodec{ElementType: defaultMap.oidToType[DateOID]}})
defaultMap.RegisterType(&Type{Name: "int4range", OID: Int4rangeOID, Codec: &RangeCodec{ElementType: defaultMap.oidToType[Int4OID]}})
defaultMap.RegisterType(&Type{Name: "int8range", OID: Int8rangeOID, Codec: &RangeCodec{ElementType: defaultMap.oidToType[Int8OID]}})
defaultMap.RegisterType(&Type{Name: "numrange", OID: NumrangeOID, Codec: &RangeCodec{ElementType: defaultMap.oidToType[NumericOID]}})
defaultMap.RegisterType(&Type{Name: "tsrange", OID: TsrangeOID, Codec: &RangeCodec{ElementType: defaultMap.oidToType[TimestampOID]}})
defaultMap.RegisterType(&Type{Name: "tstzrange", OID: TstzrangeOID, Codec: &RangeCodec{ElementType: defaultMap.oidToType[TimestamptzOID]}})
// Multirange types
defaultMap.RegisterType(&Type{Name: "datemultirange", OID: DatemultirangeOID, Codec: &MultirangeCodec{ElementType: defaultMap.oidToType[DaterangeOID]}})
defaultMap.RegisterType(&Type{Name: "int4multirange", OID: Int4multirangeOID, Codec: &MultirangeCodec{ElementType: defaultMap.oidToType[Int4rangeOID]}})
defaultMap.RegisterType(&Type{Name: "int8multirange", OID: Int8multirangeOID, Codec: &MultirangeCodec{ElementType: defaultMap.oidToType[Int8rangeOID]}})
defaultMap.RegisterType(&Type{Name: "nummultirange", OID: NummultirangeOID, Codec: &MultirangeCodec{ElementType: defaultMap.oidToType[NumrangeOID]}})
defaultMap.RegisterType(&Type{Name: "tsmultirange", OID: TsmultirangeOID, Codec: &MultirangeCodec{ElementType: defaultMap.oidToType[TsrangeOID]}})
defaultMap.RegisterType(&Type{Name: "tstzmultirange", OID: TstzmultirangeOID, Codec: &MultirangeCodec{ElementType: defaultMap.oidToType[TstzrangeOID]}})
// Array types
defaultMap.RegisterType(&Type{Name: "_aclitem", OID: ACLItemArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[ACLItemOID]}})
defaultMap.RegisterType(&Type{Name: "_bit", OID: BitArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[BitOID]}})
defaultMap.RegisterType(&Type{Name: "_bool", OID: BoolArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[BoolOID]}})
defaultMap.RegisterType(&Type{Name: "_box", OID: BoxArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[BoxOID]}})
defaultMap.RegisterType(&Type{Name: "_bpchar", OID: BPCharArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[BPCharOID]}})
defaultMap.RegisterType(&Type{Name: "_bytea", OID: ByteaArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[ByteaOID]}})
defaultMap.RegisterType(&Type{Name: "_char", OID: QCharArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[QCharOID]}})
defaultMap.RegisterType(&Type{Name: "_cid", OID: CIDArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[CIDOID]}})
defaultMap.RegisterType(&Type{Name: "_cidr", OID: CIDRArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[CIDROID]}})
defaultMap.RegisterType(&Type{Name: "_circle", OID: CircleArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[CircleOID]}})
defaultMap.RegisterType(&Type{Name: "_date", OID: DateArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[DateOID]}})
defaultMap.RegisterType(&Type{Name: "_daterange", OID: DaterangeArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[DaterangeOID]}})
defaultMap.RegisterType(&Type{Name: "_float4", OID: Float4ArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[Float4OID]}})
defaultMap.RegisterType(&Type{Name: "_float8", OID: Float8ArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[Float8OID]}})
defaultMap.RegisterType(&Type{Name: "_inet", OID: InetArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[InetOID]}})
defaultMap.RegisterType(&Type{Name: "_int2", OID: Int2ArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[Int2OID]}})
defaultMap.RegisterType(&Type{Name: "_int4", OID: Int4ArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[Int4OID]}})
defaultMap.RegisterType(&Type{Name: "_int4range", OID: Int4rangeArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[Int4rangeOID]}})
defaultMap.RegisterType(&Type{Name: "_int8", OID: Int8ArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[Int8OID]}})
defaultMap.RegisterType(&Type{Name: "_int8range", OID: Int8rangeArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[Int8rangeOID]}})
defaultMap.RegisterType(&Type{Name: "_interval", OID: IntervalArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[IntervalOID]}})
defaultMap.RegisterType(&Type{Name: "_json", OID: JSONArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[JSONOID]}})
defaultMap.RegisterType(&Type{Name: "_jsonb", OID: JSONBArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[JSONBOID]}})
defaultMap.RegisterType(&Type{Name: "_jsonpath", OID: JSONPathArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[JSONPathOID]}})
defaultMap.RegisterType(&Type{Name: "_line", OID: LineArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[LineOID]}})
defaultMap.RegisterType(&Type{Name: "_lseg", OID: LsegArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[LsegOID]}})
defaultMap.RegisterType(&Type{Name: "_macaddr", OID: MacaddrArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[MacaddrOID]}})
defaultMap.RegisterType(&Type{Name: "_name", OID: NameArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[NameOID]}})
defaultMap.RegisterType(&Type{Name: "_numeric", OID: NumericArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[NumericOID]}})
defaultMap.RegisterType(&Type{Name: "_numrange", OID: NumrangeArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[NumrangeOID]}})
defaultMap.RegisterType(&Type{Name: "_oid", OID: OIDArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[OIDOID]}})
defaultMap.RegisterType(&Type{Name: "_path", OID: PathArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[PathOID]}})
defaultMap.RegisterType(&Type{Name: "_point", OID: PointArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[PointOID]}})
defaultMap.RegisterType(&Type{Name: "_polygon", OID: PolygonArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[PolygonOID]}})
defaultMap.RegisterType(&Type{Name: "_record", OID: RecordArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[RecordOID]}})
defaultMap.RegisterType(&Type{Name: "_text", OID: TextArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[TextOID]}})
defaultMap.RegisterType(&Type{Name: "_tid", OID: TIDArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[TIDOID]}})
defaultMap.RegisterType(&Type{Name: "_time", OID: TimeArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[TimeOID]}})
defaultMap.RegisterType(&Type{Name: "_timestamp", OID: TimestampArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[TimestampOID]}})
defaultMap.RegisterType(&Type{Name: "_timestamptz", OID: TimestamptzArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[TimestamptzOID]}})
defaultMap.RegisterType(&Type{Name: "_tsrange", OID: TsrangeArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[TsrangeOID]}})
defaultMap.RegisterType(&Type{Name: "_tstzrange", OID: TstzrangeArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[TstzrangeOID]}})
defaultMap.RegisterType(&Type{Name: "_uuid", OID: UUIDArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[UUIDOID]}})
defaultMap.RegisterType(&Type{Name: "_varbit", OID: VarbitArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[VarbitOID]}})
defaultMap.RegisterType(&Type{Name: "_varchar", OID: VarcharArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[VarcharOID]}})
defaultMap.RegisterType(&Type{Name: "_xid", OID: XIDArrayOID, Codec: &ArrayCodec{ElementType: defaultMap.oidToType[XIDOID]}})
// Integer types that directly map to a PostgreSQL type
registerDefaultPgTypeVariants[int16](defaultMap, "int2")
registerDefaultPgTypeVariants[int32](defaultMap, "int4")
registerDefaultPgTypeVariants[int64](defaultMap, "int8")
// Integer types that do not have a direct match to a PostgreSQL type
registerDefaultPgTypeVariants[int8](defaultMap, "int8")
registerDefaultPgTypeVariants[int](defaultMap, "int8")
registerDefaultPgTypeVariants[uint8](defaultMap, "int8")
registerDefaultPgTypeVariants[uint16](defaultMap, "int8")
registerDefaultPgTypeVariants[uint32](defaultMap, "int8")
registerDefaultPgTypeVariants[uint64](defaultMap, "numeric")
registerDefaultPgTypeVariants[uint](defaultMap, "numeric")
registerDefaultPgTypeVariants[float32](defaultMap, "float4")
registerDefaultPgTypeVariants[float64](defaultMap, "float8")
registerDefaultPgTypeVariants[bool](defaultMap, "bool")
registerDefaultPgTypeVariants[time.Time](defaultMap, "timestamptz")
registerDefaultPgTypeVariants[time.Duration](defaultMap, "interval")
registerDefaultPgTypeVariants[string](defaultMap, "text")
registerDefaultPgTypeVariants[[]byte](defaultMap, "bytea")
registerDefaultPgTypeVariants[net.IP](defaultMap, "inet")
registerDefaultPgTypeVariants[net.IPNet](defaultMap, "cidr")
registerDefaultPgTypeVariants[netip.Addr](defaultMap, "inet")
registerDefaultPgTypeVariants[netip.Prefix](defaultMap, "cidr")
// pgtype provided structs
registerDefaultPgTypeVariants[Bits](defaultMap, "varbit")
registerDefaultPgTypeVariants[Bool](defaultMap, "bool")
registerDefaultPgTypeVariants[Box](defaultMap, "box")
registerDefaultPgTypeVariants[Circle](defaultMap, "circle")
registerDefaultPgTypeVariants[Date](defaultMap, "date")
registerDefaultPgTypeVariants[Range[Date]](defaultMap, "daterange")
registerDefaultPgTypeVariants[Multirange[Range[Date]]](defaultMap, "datemultirange")
registerDefaultPgTypeVariants[Float4](defaultMap, "float4")
registerDefaultPgTypeVariants[Float8](defaultMap, "float8")
registerDefaultPgTypeVariants[Range[Float8]](defaultMap, "numrange") // There is no PostgreSQL builtin float8range so map it to numrange.
registerDefaultPgTypeVariants[Multirange[Range[Float8]]](defaultMap, "nummultirange") // There is no PostgreSQL builtin float8multirange so map it to nummultirange.
registerDefaultPgTypeVariants[Int2](defaultMap, "int2")
registerDefaultPgTypeVariants[Int4](defaultMap, "int4")
registerDefaultPgTypeVariants[Range[Int4]](defaultMap, "int4range")
registerDefaultPgTypeVariants[Multirange[Range[Int4]]](defaultMap, "int4multirange")
registerDefaultPgTypeVariants[Int8](defaultMap, "int8")
registerDefaultPgTypeVariants[Range[Int8]](defaultMap, "int8range")
registerDefaultPgTypeVariants[Multirange[Range[Int8]]](defaultMap, "int8multirange")
registerDefaultPgTypeVariants[Interval](defaultMap, "interval")
registerDefaultPgTypeVariants[Line](defaultMap, "line")
registerDefaultPgTypeVariants[Lseg](defaultMap, "lseg")
registerDefaultPgTypeVariants[Numeric](defaultMap, "numeric")
registerDefaultPgTypeVariants[Range[Numeric]](defaultMap, "numrange")
registerDefaultPgTypeVariants[Multirange[Range[Numeric]]](defaultMap, "nummultirange")
registerDefaultPgTypeVariants[Path](defaultMap, "path")
registerDefaultPgTypeVariants[Point](defaultMap, "point")
registerDefaultPgTypeVariants[Polygon](defaultMap, "polygon")
registerDefaultPgTypeVariants[TID](defaultMap, "tid")
registerDefaultPgTypeVariants[Text](defaultMap, "text")
registerDefaultPgTypeVariants[Time](defaultMap, "time")
registerDefaultPgTypeVariants[Timestamp](defaultMap, "timestamp")
registerDefaultPgTypeVariants[Timestamptz](defaultMap, "timestamptz")
registerDefaultPgTypeVariants[Range[Timestamp]](defaultMap, "tsrange")
registerDefaultPgTypeVariants[Multirange[Range[Timestamp]]](defaultMap, "tsmultirange")
registerDefaultPgTypeVariants[Range[Timestamptz]](defaultMap, "tstzrange")
registerDefaultPgTypeVariants[Multirange[Range[Timestamptz]]](defaultMap, "tstzmultirange")
registerDefaultPgTypeVariants[UUID](defaultMap, "uuid")
defaultMap.buildReflectTypeToType()
}

50
vendor/github.com/jackc/pgx/v5/pgtype/timestamp.go generated vendored
View file

@ -3,6 +3,7 @@ package pgtype
import (
"database/sql/driver"
"encoding/binary"
"encoding/json"
"fmt"
"strings"
"time"
@ -66,6 +67,55 @@ func (ts Timestamp) Value() (driver.Value, error) {
return ts.Time, nil
}
func (ts Timestamp) MarshalJSON() ([]byte, error) {
if !ts.Valid {
return []byte("null"), nil
}
var s string
switch ts.InfinityModifier {
case Finite:
s = ts.Time.Format(time.RFC3339Nano)
case Infinity:
s = "infinity"
case NegativeInfinity:
s = "-infinity"
}
return json.Marshal(s)
}
func (ts *Timestamp) UnmarshalJSON(b []byte) error {
var s *string
err := json.Unmarshal(b, &s)
if err != nil {
return err
}
if s == nil {
*ts = Timestamp{}
return nil
}
switch *s {
case "infinity":
*ts = Timestamp{Valid: true, InfinityModifier: Infinity}
case "-infinity":
*ts = Timestamp{Valid: true, InfinityModifier: -Infinity}
default:
// PostgreSQL uses ISO 8601 for to_json function and casting from a string to timestamptz
tim, err := time.Parse(time.RFC3339Nano, *s)
if err != nil {
return err
}
*ts = Timestamp{Time: tim, Valid: true}
}
return nil
}
type TimestampCodec struct{}
func (TimestampCodec) FormatSupported(format int16) bool {

47
vendor/github.com/jackc/pgx/v5/rows.go generated vendored
View file

@ -28,12 +28,16 @@ type Rows interface {
// to call Close after rows is already closed.
Close()
// Err returns any error that occurred while reading.
// Err returns any error that occurred while reading. Err must only be called after the Rows is closed (either by
// calling Close or by Next returning false). If it is called early it may return nil even if there was an error
// executing the query.
Err() error
// CommandTag returns the command tag from this query. It is only available after Rows is closed.
CommandTag() pgconn.CommandTag
// FieldDescriptions returns the field descriptions of the columns. It may return nil. In particular this can occur
// when there was an error executing the query.
FieldDescriptions() []pgconn.FieldDescription
// Next prepares the next row for reading. It returns true if there is another
@ -533,13 +537,11 @@ func (rs *positionalStructRowScanner) appendScanTargets(dstElemValue reflect.Val
for i := 0; i < dstElemType.NumField(); i++ {
sf := dstElemType.Field(i)
if sf.PkgPath == "" {
// Handle anonymous struct embedding, but do not try to handle embedded pointers.
if sf.Anonymous && sf.Type.Kind() == reflect.Struct {
scanTargets = rs.appendScanTargets(dstElemValue.Field(i), scanTargets)
} else {
scanTargets = append(scanTargets, dstElemValue.Field(i).Addr().Interface())
}
// Handle anonymous struct embedding, but do not try to handle embedded pointers.
if sf.Anonymous && sf.Type.Kind() == reflect.Struct {
scanTargets = rs.appendScanTargets(dstElemValue.Field(i), scanTargets)
} else if sf.PkgPath == "" {
scanTargets = append(scanTargets, dstElemValue.Field(i).Addr().Interface())
}
}
@ -565,8 +567,28 @@ func RowToAddrOfStructByName[T any](row CollectableRow) (*T, error) {
return &value, err
}
// RowToStructByNameLax returns a T scanned from row. T must be a struct. T must have greater than or equal number of named public
// fields as row has fields. The row and T fields will by matched by name. The match is case-insensitive. The database
// column name can be overridden with a "db" struct tag. If the "db" struct tag is "-" then the field will be ignored.
func RowToStructByNameLax[T any](row CollectableRow) (T, error) {
var value T
err := row.Scan(&namedStructRowScanner{ptrToStruct: &value, lax: true})
return value, err
}
// RowToAddrOfStructByNameLax returns the address of a T scanned from row. T must be a struct. T must have greater than or
// equal number of named public fields as row has fields. The row and T fields will by matched by name. The match is
// case-insensitive. The database column name can be overridden with a "db" struct tag. If the "db" struct tag is "-"
// then the field will be ignored.
func RowToAddrOfStructByNameLax[T any](row CollectableRow) (*T, error) {
var value T
err := row.Scan(&namedStructRowScanner{ptrToStruct: &value, lax: true})
return &value, err
}
type namedStructRowScanner struct {
ptrToStruct any
lax bool
}
func (rs *namedStructRowScanner) ScanRow(rows Rows) error {
@ -578,7 +600,6 @@ func (rs *namedStructRowScanner) ScanRow(rows Rows) error {
dstElemValue := dstValue.Elem()
scanTargets, err := rs.appendScanTargets(dstElemValue, nil, rows.FieldDescriptions())
if err != nil {
return err
}
@ -638,7 +659,13 @@ func (rs *namedStructRowScanner) appendScanTargets(dstElemValue reflect.Value, s
colName = sf.Name
}
fpos := fieldPosByName(fldDescs, colName)
if fpos == -1 || fpos >= len(scanTargets) {
if fpos == -1 {
if rs.lax {
continue
}
return nil, fmt.Errorf("cannot find field %s in returned row", colName)
}
if fpos >= len(scanTargets) && !rs.lax {
return nil, fmt.Errorf("cannot find field %s in returned row", colName)
}
scanTargets[fpos] = dstElemValue.Field(i).Addr().Interface()

8
vendor/github.com/jackc/pgx/v5/tx.go generated vendored
View file

@ -44,6 +44,10 @@ type TxOptions struct {
IsoLevel TxIsoLevel
AccessMode TxAccessMode
DeferrableMode TxDeferrableMode
// BeginQuery is the SQL query that will be executed to begin the transaction. This allows using non-standard syntax
// such as BEGIN PRIORITY HIGH with CockroachDB. If set this will override the other settings.
BeginQuery string
}
var emptyTxOptions TxOptions
@ -53,6 +57,10 @@ func (txOptions TxOptions) beginSQL() string {
return "begin"
}
if txOptions.BeginQuery != "" {
return txOptions.BeginQuery
}
var buf strings.Builder
buf.Grow(64) // 64 - maximum length of string with available options
buf.WriteString("begin")