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This commit is contained in:
huang
2025-09-07 21:13:15 +08:00
parent c4522b974b
commit 565cf3fa6a
380 changed files with 18330 additions and 16854 deletions
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168
vendor/github.com/jackc/pgx/v5/stdlib/sql.go generated vendored
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@@ -7,19 +7,28 @@
// return err
// }
//
// Or from a DSN string.
// Or from a keyword/value string.
//
// db, err := sql.Open("pgx", "user=postgres password=secret host=localhost port=5432 database=pgx_test sslmode=disable")
// if err != nil {
// return err
// }
//
// Or from a *pgxpool.Pool.
//
// pool, err := pgxpool.New(context.Background(), os.Getenv("DATABASE_URL"))
// if err != nil {
// return err
// }
//
// db := stdlib.OpenDBFromPool(pool)
//
// Or a pgx.ConnConfig can be used to set configuration not accessible via connection string. In this case the
// pgx.ConnConfig must first be registered with the driver. This registration returns a connection string which is used
// with sql.Open.
//
// connConfig, _ := pgx.ParseConfig(os.Getenv("DATABASE_URL"))
// connConfig.Logger = myLogger
// connConfig.Tracer = &tracelog.TraceLog{Logger: myLogger, LogLevel: tracelog.LogLevelInfo}
// connStr := stdlib.RegisterConnConfig(connConfig)
// db, _ := sql.Open("pgx", connStr)
//
@@ -66,6 +75,7 @@ import (
"math"
"math/rand"
"reflect"
"slices"
"strconv"
"strings"
"sync"
@@ -74,6 +84,7 @@ import (
"github.com/jackc/pgx/v5"
"github.com/jackc/pgx/v5/pgconn"
"github.com/jackc/pgx/v5/pgtype"
"github.com/jackc/pgx/v5/pgxpool"
)
// Only intrinsic types should be binary format with database/sql.
@@ -88,7 +99,7 @@ func init() {
// if pgx driver was already registered by different pgx major version then we
// skip registration under the default name.
if !contains(sql.Drivers(), "pgx") {
if !slices.Contains(sql.Drivers(), "pgx") {
sql.Register("pgx", pgxDriver)
}
sql.Register("pgx/v5", pgxDriver)
@@ -110,29 +121,18 @@ func init() {
}
}
// TODO replace by slices.Contains when experimental package will be merged to stdlib
// https://pkg.go.dev/golang.org/x/exp/slices#Contains
func contains(list []string, y string) bool {
for _, x := range list {
if x == y {
return true
}
}
return false
}
// OptionOpenDB options for configuring the driver when opening a new db pool.
type OptionOpenDB func(*connector)
// OptionBeforeConnect provides a callback for before connect. It is passed a shallow copy of the ConnConfig that will
// be used to connect, so only its immediate members should be modified.
// be used to connect, so only its immediate members should be modified. Used only if db is opened with *pgx.ConnConfig.
func OptionBeforeConnect(bc func(context.Context, *pgx.ConnConfig) error) OptionOpenDB {
return func(dc *connector) {
dc.BeforeConnect = bc
}
}
// OptionAfterConnect provides a callback for after connect.
// OptionAfterConnect provides a callback for after connect. Used only if db is opened with *pgx.ConnConfig.
func OptionAfterConnect(ac func(context.Context, *pgx.Conn) error) OptionOpenDB {
return func(dc *connector) {
dc.AfterConnect = ac
@@ -191,13 +191,42 @@ func GetConnector(config pgx.ConnConfig, opts ...OptionOpenDB) driver.Connector
return c
}
// GetPoolConnector creates a new driver.Connector from the given *pgxpool.Pool. By using this be sure to set the
// maximum idle connections of the *sql.DB created with this connector to zero since they must be managed from the
// *pgxpool.Pool. This is required to avoid acquiring all the connections from the pgxpool and starving any direct
// users of the pgxpool.
func GetPoolConnector(pool *pgxpool.Pool, opts ...OptionOpenDB) driver.Connector {
c := connector{
pool: pool,
ResetSession: func(context.Context, *pgx.Conn) error { return nil }, // noop reset session by default
driver: pgxDriver,
}
for _, opt := range opts {
opt(&c)
}
return c
}
func OpenDB(config pgx.ConnConfig, opts ...OptionOpenDB) *sql.DB {
c := GetConnector(config, opts...)
return sql.OpenDB(c)
}
// OpenDBFromPool creates a new *sql.DB from the given *pgxpool.Pool. Note that this method automatically sets the
// maximum number of idle connections in *sql.DB to zero, since they must be managed from the *pgxpool.Pool. This is
// required to avoid acquiring all the connections from the pgxpool and starving any direct users of the pgxpool.
func OpenDBFromPool(pool *pgxpool.Pool, opts ...OptionOpenDB) *sql.DB {
c := GetPoolConnector(pool, opts...)
db := sql.OpenDB(c)
db.SetMaxIdleConns(0)
return db
}
type connector struct {
pgx.ConnConfig
pool *pgxpool.Pool
BeforeConnect func(context.Context, *pgx.ConnConfig) error // function to call before creation of every new connection
AfterConnect func(context.Context, *pgx.Conn) error // function to call after creation of every new connection
ResetSession func(context.Context, *pgx.Conn) error // function is called before a connection is reused
@@ -207,25 +236,53 @@ type connector struct {
// Connect implement driver.Connector interface
func (c connector) Connect(ctx context.Context) (driver.Conn, error) {
var (
err error
conn *pgx.Conn
connConfig pgx.ConnConfig
conn *pgx.Conn
close func(context.Context) error
err error
)
// Create a shallow copy of the config, so that BeforeConnect can safely modify it
connConfig := c.ConnConfig
if err = c.BeforeConnect(ctx, &connConfig); err != nil {
return nil, err
if c.pool == nil {
// Create a shallow copy of the config, so that BeforeConnect can safely modify it
connConfig = c.ConnConfig
if err = c.BeforeConnect(ctx, &connConfig); err != nil {
return nil, err
}
if conn, err = pgx.ConnectConfig(ctx, &connConfig); err != nil {
return nil, err
}
if err = c.AfterConnect(ctx, conn); err != nil {
return nil, err
}
close = conn.Close
} else {
var pconn *pgxpool.Conn
pconn, err = c.pool.Acquire(ctx)
if err != nil {
return nil, err
}
conn = pconn.Conn()
close = func(_ context.Context) error {
pconn.Release()
return nil
}
}
if conn, err = pgx.ConnectConfig(ctx, &connConfig); err != nil {
return nil, err
}
if err = c.AfterConnect(ctx, conn); err != nil {
return nil, err
}
return &Conn{conn: conn, driver: c.driver, connConfig: connConfig, resetSessionFunc: c.ResetSession}, nil
return &Conn{
conn: conn,
close: close,
driver: c.driver,
connConfig: connConfig,
resetSessionFunc: c.ResetSession,
psRefCounts: make(map[*pgconn.StatementDescription]int),
}, nil
}
// Driver implement driver.Connector interface
@@ -302,9 +359,11 @@ func (dc *driverConnector) Connect(ctx context.Context) (driver.Conn, error) {
c := &Conn{
conn: conn,
close: conn.Close,
driver: dc.driver,
connConfig: *connConfig,
resetSessionFunc: func(context.Context, *pgx.Conn) error { return nil },
psRefCounts: make(map[*pgconn.StatementDescription]int),
}
return c, nil
@@ -326,11 +385,19 @@ func UnregisterConnConfig(connStr string) {
type Conn struct {
conn *pgx.Conn
psCount int64 // Counter used for creating unique prepared statement names
close func(context.Context) error
driver *Driver
connConfig pgx.ConnConfig
resetSessionFunc func(context.Context, *pgx.Conn) error // Function is called before a connection is reused
lastResetSessionTime time.Time
// psRefCounts contains reference counts for prepared statements. Prepare uses the underlying pgx logic to generate
// deterministic statement names from the statement text. If this query has already been prepared then the existing
// *pgconn.StatementDescription will be returned. However, this means that if Close is called on the returned Stmt
// then the underlying prepared statement will be closed even when the underlying prepared statement is still in use
// by another database/sql Stmt. To prevent this psRefCounts keeps track of how many database/sql statements are using
// the same underlying statement and only closes the underlying statement when the reference count reaches 0.
psRefCounts map[*pgconn.StatementDescription]int
}
// Conn returns the underlying *pgx.Conn
@@ -347,13 +414,11 @@ func (c *Conn) PrepareContext(ctx context.Context, query string) (driver.Stmt, e
return nil, driver.ErrBadConn
}
name := fmt.Sprintf("pgx_%d", c.psCount)
c.psCount++
sd, err := c.conn.Prepare(ctx, name, query)
sd, err := c.conn.Prepare(ctx, query, query)
if err != nil {
return nil, err
}
c.psRefCounts[sd]++
return &Stmt{sd: sd, conn: c}, nil
}
@@ -361,7 +426,7 @@ func (c *Conn) PrepareContext(ctx context.Context, query string) (driver.Stmt, e
func (c *Conn) Close() error {
ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
defer cancel()
return c.conn.Close(ctx)
return c.close(ctx)
}
func (c *Conn) Begin() (driver.Tx, error) {
@@ -470,7 +535,7 @@ func (c *Conn) ResetSession(ctx context.Context) error {
now := time.Now()
if now.Sub(c.lastResetSessionTime) > time.Second {
if err := c.conn.PgConn().CheckConn(); err != nil {
if err := c.conn.PgConn().Ping(ctx); err != nil {
return driver.ErrBadConn
}
}
@@ -487,7 +552,16 @@ type Stmt struct {
func (s *Stmt) Close() error {
ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
defer cancel()
return s.conn.conn.Deallocate(ctx, s.sd.Name)
refCount := s.conn.psRefCounts[s.sd]
if refCount == 1 {
delete(s.conn.psRefCounts, s.sd)
} else {
s.conn.psRefCounts[s.sd]--
return nil
}
return s.conn.conn.Deallocate(ctx, s.sd.SQL)
}
func (s *Stmt) NumInput() int {
@@ -499,7 +573,7 @@ func (s *Stmt) Exec(argsV []driver.Value) (driver.Result, error) {
}
func (s *Stmt) ExecContext(ctx context.Context, argsV []driver.NamedValue) (driver.Result, error) {
return s.conn.ExecContext(ctx, s.sd.Name, argsV)
return s.conn.ExecContext(ctx, s.sd.SQL, argsV)
}
func (s *Stmt) Query(argsV []driver.Value) (driver.Rows, error) {
@@ -507,7 +581,7 @@ func (s *Stmt) Query(argsV []driver.Value) (driver.Rows, error) {
}
func (s *Stmt) QueryContext(ctx context.Context, argsV []driver.NamedValue) (driver.Rows, error) {
return s.conn.QueryContext(ctx, s.sd.Name, argsV)
return s.conn.QueryContext(ctx, s.sd.SQL, argsV)
}
type rowValueFunc func(src []byte) (driver.Value, error)
@@ -721,6 +795,16 @@ func (r *Rows) Next(dest []driver.Value) error {
}
return d.Value()
}
case pgtype.XMLOID:
var d []byte
scanPlan := m.PlanScan(dataTypeOID, format, &d)
r.valueFuncs[i] = func(src []byte) (driver.Value, error) {
err := scanPlan.Scan(src, &d)
if err != nil {
return nil, err
}
return d, nil
}
default:
var d string
scanPlan := m.PlanScan(dataTypeOID, format, &d)
@@ -753,7 +837,7 @@ func (r *Rows) Next(dest []driver.Value) error {
var err error
dest[i], err = r.valueFuncs[i](rv)
if err != nil {
return fmt.Errorf("convert field %d failed: %v", i, err)
return fmt.Errorf("convert field %d failed: %w", i, err)
}
} else {
dest[i] = nil