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	[chore] Update a bunch of database dependencies (#1772)
* [chore] Update a bunch of database dependencies * fix lil thing
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							|  | @ -0,0 +1,797 @@ | |||
| // Package stdlib is the compatibility layer from pgx to database/sql. | ||||
| // | ||||
| // A database/sql connection can be established through sql.Open. | ||||
| // | ||||
| //	db, err := sql.Open("pgx", "postgres://pgx_md5:secret@localhost:5432/pgx_test?sslmode=disable") | ||||
| //	if err != nil { | ||||
| //	  return err | ||||
| //	} | ||||
| // | ||||
| // Or from a DSN 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 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 | ||||
| //	connStr := stdlib.RegisterConnConfig(connConfig) | ||||
| //	db, _ := sql.Open("pgx", connStr) | ||||
| // | ||||
| // pgx uses standard PostgreSQL positional parameters in queries. e.g. $1, $2. It does not support named parameters. | ||||
| // | ||||
| //	db.QueryRow("select * from users where id=$1", userID) | ||||
| // | ||||
| // (*sql.Conn) Raw() can be used to get a *pgx.Conn from the standard database/sql.DB connection pool. This allows | ||||
| // operations that use pgx specific functionality. | ||||
| // | ||||
| //	// Given db is a *sql.DB | ||||
| //	conn, err := db.Conn(context.Background()) | ||||
| //	if err != nil { | ||||
| //	  // handle error from acquiring connection from DB pool | ||||
| //	} | ||||
| // | ||||
| //	err = conn.Raw(func(driverConn any) error { | ||||
| //	  conn := driverConn.(*stdlib.Conn).Conn() // conn is a *pgx.Conn | ||||
| //	  // Do pgx specific stuff with conn | ||||
| //	  conn.CopyFrom(...) | ||||
| //	  return nil | ||||
| //	}) | ||||
| //	if err != nil { | ||||
| //	  // handle error that occurred while using *pgx.Conn | ||||
| //	} | ||||
| // | ||||
| // # PostgreSQL Specific Data Types | ||||
| // | ||||
| // The pgtype package provides support for PostgreSQL specific types. *pgtype.Map.SQLScanner is an adapter that makes | ||||
| // these types usable as a sql.Scanner. | ||||
| // | ||||
| //	m := pgtype.NewMap() | ||||
| //	var a []int64 | ||||
| //	err := db.QueryRow("select '{1,2,3}'::bigint[]").Scan(m.SQLScanner(&a)) | ||||
| package stdlib | ||||
| 
 | ||||
| import ( | ||||
| 	"context" | ||||
| 	"database/sql" | ||||
| 	"database/sql/driver" | ||||
| 	"errors" | ||||
| 	"fmt" | ||||
| 	"io" | ||||
| 	"math" | ||||
| 	"math/rand" | ||||
| 	"reflect" | ||||
| 	"strconv" | ||||
| 	"strings" | ||||
| 	"sync" | ||||
| 	"time" | ||||
| 
 | ||||
| 	"github.com/jackc/pgx/v5" | ||||
| 	"github.com/jackc/pgx/v5/pgconn" | ||||
| 	"github.com/jackc/pgx/v5/pgtype" | ||||
| ) | ||||
| 
 | ||||
| // Only intrinsic types should be binary format with database/sql. | ||||
| var databaseSQLResultFormats pgx.QueryResultFormatsByOID | ||||
| 
 | ||||
| var pgxDriver *Driver | ||||
| 
 | ||||
| func init() { | ||||
| 	pgxDriver = &Driver{ | ||||
| 		configs: make(map[string]*pgx.ConnConfig), | ||||
| 	} | ||||
| 
 | ||||
| 	// if pgx driver was already registered by different pgx major version then we | ||||
| 	// skip registration under the default name. | ||||
| 	if !contains(sql.Drivers(), "pgx") { | ||||
| 		sql.Register("pgx", pgxDriver) | ||||
| 	} | ||||
| 	sql.Register("pgx/v5", pgxDriver) | ||||
| 
 | ||||
| 	databaseSQLResultFormats = pgx.QueryResultFormatsByOID{ | ||||
| 		pgtype.BoolOID:        1, | ||||
| 		pgtype.ByteaOID:       1, | ||||
| 		pgtype.CIDOID:         1, | ||||
| 		pgtype.DateOID:        1, | ||||
| 		pgtype.Float4OID:      1, | ||||
| 		pgtype.Float8OID:      1, | ||||
| 		pgtype.Int2OID:        1, | ||||
| 		pgtype.Int4OID:        1, | ||||
| 		pgtype.Int8OID:        1, | ||||
| 		pgtype.OIDOID:         1, | ||||
| 		pgtype.TimestampOID:   1, | ||||
| 		pgtype.TimestamptzOID: 1, | ||||
| 		pgtype.XIDOID:         1, | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| // 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. | ||||
| func OptionBeforeConnect(bc func(context.Context, *pgx.ConnConfig) error) OptionOpenDB { | ||||
| 	return func(dc *connector) { | ||||
| 		dc.BeforeConnect = bc | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| // OptionAfterConnect provides a callback for after connect. | ||||
| func OptionAfterConnect(ac func(context.Context, *pgx.Conn) error) OptionOpenDB { | ||||
| 	return func(dc *connector) { | ||||
| 		dc.AfterConnect = ac | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| // OptionResetSession provides a callback that can be used to add custom logic prior to executing a query on the | ||||
| // connection if the connection has been used before. | ||||
| // If ResetSessionFunc returns ErrBadConn error the connection will be discarded. | ||||
| func OptionResetSession(rs func(context.Context, *pgx.Conn) error) OptionOpenDB { | ||||
| 	return func(dc *connector) { | ||||
| 		dc.ResetSession = rs | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| // RandomizeHostOrderFunc is a BeforeConnect hook that randomizes the host order in the provided connConfig, so that a | ||||
| // new host becomes primary each time. This is useful to distribute connections for multi-master databases like | ||||
| // CockroachDB. If you use this you likely should set https://golang.org/pkg/database/sql/#DB.SetConnMaxLifetime as well | ||||
| // to ensure that connections are periodically rebalanced across your nodes. | ||||
| func RandomizeHostOrderFunc(ctx context.Context, connConfig *pgx.ConnConfig) error { | ||||
| 	if len(connConfig.Fallbacks) == 0 { | ||||
| 		return nil | ||||
| 	} | ||||
| 
 | ||||
| 	newFallbacks := append([]*pgconn.FallbackConfig{{ | ||||
| 		Host:      connConfig.Host, | ||||
| 		Port:      connConfig.Port, | ||||
| 		TLSConfig: connConfig.TLSConfig, | ||||
| 	}}, connConfig.Fallbacks...) | ||||
| 
 | ||||
| 	rand.Shuffle(len(newFallbacks), func(i, j int) { | ||||
| 		newFallbacks[i], newFallbacks[j] = newFallbacks[j], newFallbacks[i] | ||||
| 	}) | ||||
| 
 | ||||
| 	// Use the one that sorted last as the primary and keep the rest as the fallbacks | ||||
| 	newPrimary := newFallbacks[len(newFallbacks)-1] | ||||
| 	connConfig.Host = newPrimary.Host | ||||
| 	connConfig.Port = newPrimary.Port | ||||
| 	connConfig.TLSConfig = newPrimary.TLSConfig | ||||
| 	connConfig.Fallbacks = newFallbacks[:len(newFallbacks)-1] | ||||
| 	return nil | ||||
| } | ||||
| 
 | ||||
| func GetConnector(config pgx.ConnConfig, opts ...OptionOpenDB) driver.Connector { | ||||
| 	c := connector{ | ||||
| 		ConnConfig:    config, | ||||
| 		BeforeConnect: func(context.Context, *pgx.ConnConfig) error { return nil }, // noop before connect by default | ||||
| 		AfterConnect:  func(context.Context, *pgx.Conn) error { return nil },       // noop after connect by default | ||||
| 		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) | ||||
| } | ||||
| 
 | ||||
| type connector struct { | ||||
| 	pgx.ConnConfig | ||||
| 	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 | ||||
| 	driver        *Driver | ||||
| } | ||||
| 
 | ||||
| // Connect implement driver.Connector interface | ||||
| func (c connector) Connect(ctx context.Context) (driver.Conn, error) { | ||||
| 	var ( | ||||
| 		err  error | ||||
| 		conn *pgx.Conn | ||||
| 	) | ||||
| 
 | ||||
| 	// 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 | ||||
| 	} | ||||
| 
 | ||||
| 	return &Conn{conn: conn, driver: c.driver, connConfig: connConfig, resetSessionFunc: c.ResetSession}, nil | ||||
| } | ||||
| 
 | ||||
| // Driver implement driver.Connector interface | ||||
| func (c connector) Driver() driver.Driver { | ||||
| 	return c.driver | ||||
| } | ||||
| 
 | ||||
| // GetDefaultDriver returns the driver initialized in the init function | ||||
| // and used when the pgx driver is registered. | ||||
| func GetDefaultDriver() driver.Driver { | ||||
| 	return pgxDriver | ||||
| } | ||||
| 
 | ||||
| type Driver struct { | ||||
| 	configMutex sync.Mutex | ||||
| 	configs     map[string]*pgx.ConnConfig | ||||
| 	sequence    int | ||||
| } | ||||
| 
 | ||||
| func (d *Driver) Open(name string) (driver.Conn, error) { | ||||
| 	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second) // Ensure eventual timeout | ||||
| 	defer cancel() | ||||
| 
 | ||||
| 	connector, err := d.OpenConnector(name) | ||||
| 	if err != nil { | ||||
| 		return nil, err | ||||
| 	} | ||||
| 	return connector.Connect(ctx) | ||||
| } | ||||
| 
 | ||||
| func (d *Driver) OpenConnector(name string) (driver.Connector, error) { | ||||
| 	return &driverConnector{driver: d, name: name}, nil | ||||
| } | ||||
| 
 | ||||
| func (d *Driver) registerConnConfig(c *pgx.ConnConfig) string { | ||||
| 	d.configMutex.Lock() | ||||
| 	connStr := fmt.Sprintf("registeredConnConfig%d", d.sequence) | ||||
| 	d.sequence++ | ||||
| 	d.configs[connStr] = c | ||||
| 	d.configMutex.Unlock() | ||||
| 	return connStr | ||||
| } | ||||
| 
 | ||||
| func (d *Driver) unregisterConnConfig(connStr string) { | ||||
| 	d.configMutex.Lock() | ||||
| 	delete(d.configs, connStr) | ||||
| 	d.configMutex.Unlock() | ||||
| } | ||||
| 
 | ||||
| type driverConnector struct { | ||||
| 	driver *Driver | ||||
| 	name   string | ||||
| } | ||||
| 
 | ||||
| func (dc *driverConnector) Connect(ctx context.Context) (driver.Conn, error) { | ||||
| 	var connConfig *pgx.ConnConfig | ||||
| 
 | ||||
| 	dc.driver.configMutex.Lock() | ||||
| 	connConfig = dc.driver.configs[dc.name] | ||||
| 	dc.driver.configMutex.Unlock() | ||||
| 
 | ||||
| 	if connConfig == nil { | ||||
| 		var err error | ||||
| 		connConfig, err = pgx.ParseConfig(dc.name) | ||||
| 		if err != nil { | ||||
| 			return nil, err | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	conn, err := pgx.ConnectConfig(ctx, connConfig) | ||||
| 	if err != nil { | ||||
| 		return nil, err | ||||
| 	} | ||||
| 
 | ||||
| 	c := &Conn{ | ||||
| 		conn:             conn, | ||||
| 		driver:           dc.driver, | ||||
| 		connConfig:       *connConfig, | ||||
| 		resetSessionFunc: func(context.Context, *pgx.Conn) error { return nil }, | ||||
| 	} | ||||
| 
 | ||||
| 	return c, nil | ||||
| } | ||||
| 
 | ||||
| func (dc *driverConnector) Driver() driver.Driver { | ||||
| 	return dc.driver | ||||
| } | ||||
| 
 | ||||
| // RegisterConnConfig registers a ConnConfig and returns the connection string to use with Open. | ||||
| func RegisterConnConfig(c *pgx.ConnConfig) string { | ||||
| 	return pgxDriver.registerConnConfig(c) | ||||
| } | ||||
| 
 | ||||
| // UnregisterConnConfig removes the ConnConfig registration for connStr. | ||||
| func UnregisterConnConfig(connStr string) { | ||||
| 	pgxDriver.unregisterConnConfig(connStr) | ||||
| } | ||||
| 
 | ||||
| type Conn struct { | ||||
| 	conn                 *pgx.Conn | ||||
| 	psCount              int64 // Counter used for creating unique prepared statement names | ||||
| 	driver               *Driver | ||||
| 	connConfig           pgx.ConnConfig | ||||
| 	resetSessionFunc     func(context.Context, *pgx.Conn) error // Function is called before a connection is reused | ||||
| 	lastResetSessionTime time.Time | ||||
| } | ||||
| 
 | ||||
| // Conn returns the underlying *pgx.Conn | ||||
| func (c *Conn) Conn() *pgx.Conn { | ||||
| 	return c.conn | ||||
| } | ||||
| 
 | ||||
| func (c *Conn) Prepare(query string) (driver.Stmt, error) { | ||||
| 	return c.PrepareContext(context.Background(), query) | ||||
| } | ||||
| 
 | ||||
| func (c *Conn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) { | ||||
| 	if c.conn.IsClosed() { | ||||
| 		return nil, driver.ErrBadConn | ||||
| 	} | ||||
| 
 | ||||
| 	name := fmt.Sprintf("pgx_%d", c.psCount) | ||||
| 	c.psCount++ | ||||
| 
 | ||||
| 	sd, err := c.conn.Prepare(ctx, name, query) | ||||
| 	if err != nil { | ||||
| 		return nil, err | ||||
| 	} | ||||
| 
 | ||||
| 	return &Stmt{sd: sd, conn: c}, nil | ||||
| } | ||||
| 
 | ||||
| func (c *Conn) Close() error { | ||||
| 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5) | ||||
| 	defer cancel() | ||||
| 	return c.conn.Close(ctx) | ||||
| } | ||||
| 
 | ||||
| func (c *Conn) Begin() (driver.Tx, error) { | ||||
| 	return c.BeginTx(context.Background(), driver.TxOptions{}) | ||||
| } | ||||
| 
 | ||||
| func (c *Conn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) { | ||||
| 	if c.conn.IsClosed() { | ||||
| 		return nil, driver.ErrBadConn | ||||
| 	} | ||||
| 
 | ||||
| 	var pgxOpts pgx.TxOptions | ||||
| 	switch sql.IsolationLevel(opts.Isolation) { | ||||
| 	case sql.LevelDefault: | ||||
| 	case sql.LevelReadUncommitted: | ||||
| 		pgxOpts.IsoLevel = pgx.ReadUncommitted | ||||
| 	case sql.LevelReadCommitted: | ||||
| 		pgxOpts.IsoLevel = pgx.ReadCommitted | ||||
| 	case sql.LevelRepeatableRead, sql.LevelSnapshot: | ||||
| 		pgxOpts.IsoLevel = pgx.RepeatableRead | ||||
| 	case sql.LevelSerializable: | ||||
| 		pgxOpts.IsoLevel = pgx.Serializable | ||||
| 	default: | ||||
| 		return nil, fmt.Errorf("unsupported isolation: %v", opts.Isolation) | ||||
| 	} | ||||
| 
 | ||||
| 	if opts.ReadOnly { | ||||
| 		pgxOpts.AccessMode = pgx.ReadOnly | ||||
| 	} | ||||
| 
 | ||||
| 	tx, err := c.conn.BeginTx(ctx, pgxOpts) | ||||
| 	if err != nil { | ||||
| 		return nil, err | ||||
| 	} | ||||
| 
 | ||||
| 	return wrapTx{ctx: ctx, tx: tx}, nil | ||||
| } | ||||
| 
 | ||||
| func (c *Conn) ExecContext(ctx context.Context, query string, argsV []driver.NamedValue) (driver.Result, error) { | ||||
| 	if c.conn.IsClosed() { | ||||
| 		return nil, driver.ErrBadConn | ||||
| 	} | ||||
| 
 | ||||
| 	args := namedValueToInterface(argsV) | ||||
| 
 | ||||
| 	commandTag, err := c.conn.Exec(ctx, query, args...) | ||||
| 	// if we got a network error before we had a chance to send the query, retry | ||||
| 	if err != nil { | ||||
| 		if pgconn.SafeToRetry(err) { | ||||
| 			return nil, driver.ErrBadConn | ||||
| 		} | ||||
| 	} | ||||
| 	return driver.RowsAffected(commandTag.RowsAffected()), err | ||||
| } | ||||
| 
 | ||||
| func (c *Conn) QueryContext(ctx context.Context, query string, argsV []driver.NamedValue) (driver.Rows, error) { | ||||
| 	if c.conn.IsClosed() { | ||||
| 		return nil, driver.ErrBadConn | ||||
| 	} | ||||
| 
 | ||||
| 	args := []any{databaseSQLResultFormats} | ||||
| 	args = append(args, namedValueToInterface(argsV)...) | ||||
| 
 | ||||
| 	rows, err := c.conn.Query(ctx, query, args...) | ||||
| 	if err != nil { | ||||
| 		if pgconn.SafeToRetry(err) { | ||||
| 			return nil, driver.ErrBadConn | ||||
| 		} | ||||
| 		return nil, err | ||||
| 	} | ||||
| 
 | ||||
| 	// Preload first row because otherwise we won't know what columns are available when database/sql asks. | ||||
| 	more := rows.Next() | ||||
| 	if err = rows.Err(); err != nil { | ||||
| 		rows.Close() | ||||
| 		return nil, err | ||||
| 	} | ||||
| 	return &Rows{conn: c, rows: rows, skipNext: true, skipNextMore: more}, nil | ||||
| } | ||||
| 
 | ||||
| func (c *Conn) Ping(ctx context.Context) error { | ||||
| 	if c.conn.IsClosed() { | ||||
| 		return driver.ErrBadConn | ||||
| 	} | ||||
| 
 | ||||
| 	err := c.conn.Ping(ctx) | ||||
| 	if err != nil { | ||||
| 		// A Ping failure implies some sort of fatal state. The connection is almost certainly already closed by the | ||||
| 		// failure, but manually close it just to be sure. | ||||
| 		c.Close() | ||||
| 		return driver.ErrBadConn | ||||
| 	} | ||||
| 
 | ||||
| 	return nil | ||||
| } | ||||
| 
 | ||||
| func (c *Conn) CheckNamedValue(*driver.NamedValue) error { | ||||
| 	// Underlying pgx supports sql.Scanner and driver.Valuer interfaces natively. So everything can be passed through directly. | ||||
| 	return nil | ||||
| } | ||||
| 
 | ||||
| func (c *Conn) ResetSession(ctx context.Context) error { | ||||
| 	if c.conn.IsClosed() { | ||||
| 		return driver.ErrBadConn | ||||
| 	} | ||||
| 
 | ||||
| 	now := time.Now() | ||||
| 	if now.Sub(c.lastResetSessionTime) > time.Second { | ||||
| 		if err := c.conn.PgConn().CheckConn(); err != nil { | ||||
| 			return driver.ErrBadConn | ||||
| 		} | ||||
| 	} | ||||
| 	c.lastResetSessionTime = now | ||||
| 
 | ||||
| 	return c.resetSessionFunc(ctx, c.conn) | ||||
| } | ||||
| 
 | ||||
| type Stmt struct { | ||||
| 	sd   *pgconn.StatementDescription | ||||
| 	conn *Conn | ||||
| } | ||||
| 
 | ||||
| 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) | ||||
| } | ||||
| 
 | ||||
| func (s *Stmt) NumInput() int { | ||||
| 	return len(s.sd.ParamOIDs) | ||||
| } | ||||
| 
 | ||||
| func (s *Stmt) Exec(argsV []driver.Value) (driver.Result, error) { | ||||
| 	return nil, errors.New("Stmt.Exec deprecated and not implemented") | ||||
| } | ||||
| 
 | ||||
| func (s *Stmt) ExecContext(ctx context.Context, argsV []driver.NamedValue) (driver.Result, error) { | ||||
| 	return s.conn.ExecContext(ctx, s.sd.Name, argsV) | ||||
| } | ||||
| 
 | ||||
| func (s *Stmt) Query(argsV []driver.Value) (driver.Rows, error) { | ||||
| 	return nil, errors.New("Stmt.Query deprecated and not implemented") | ||||
| } | ||||
| 
 | ||||
| func (s *Stmt) QueryContext(ctx context.Context, argsV []driver.NamedValue) (driver.Rows, error) { | ||||
| 	return s.conn.QueryContext(ctx, s.sd.Name, argsV) | ||||
| } | ||||
| 
 | ||||
| type rowValueFunc func(src []byte) (driver.Value, error) | ||||
| 
 | ||||
| type Rows struct { | ||||
| 	conn         *Conn | ||||
| 	rows         pgx.Rows | ||||
| 	valueFuncs   []rowValueFunc | ||||
| 	skipNext     bool | ||||
| 	skipNextMore bool | ||||
| 
 | ||||
| 	columnNames []string | ||||
| } | ||||
| 
 | ||||
| func (r *Rows) Columns() []string { | ||||
| 	if r.columnNames == nil { | ||||
| 		fields := r.rows.FieldDescriptions() | ||||
| 		r.columnNames = make([]string, len(fields)) | ||||
| 		for i, fd := range fields { | ||||
| 			r.columnNames[i] = string(fd.Name) | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	return r.columnNames | ||||
| } | ||||
| 
 | ||||
| // ColumnTypeDatabaseTypeName returns the database system type name. If the name is unknown the OID is returned. | ||||
| func (r *Rows) ColumnTypeDatabaseTypeName(index int) string { | ||||
| 	if dt, ok := r.conn.conn.TypeMap().TypeForOID(r.rows.FieldDescriptions()[index].DataTypeOID); ok { | ||||
| 		return strings.ToUpper(dt.Name) | ||||
| 	} | ||||
| 
 | ||||
| 	return strconv.FormatInt(int64(r.rows.FieldDescriptions()[index].DataTypeOID), 10) | ||||
| } | ||||
| 
 | ||||
| const varHeaderSize = 4 | ||||
| 
 | ||||
| // ColumnTypeLength returns the length of the column type if the column is a | ||||
| // variable length type. If the column is not a variable length type ok | ||||
| // should return false. | ||||
| func (r *Rows) ColumnTypeLength(index int) (int64, bool) { | ||||
| 	fd := r.rows.FieldDescriptions()[index] | ||||
| 
 | ||||
| 	switch fd.DataTypeOID { | ||||
| 	case pgtype.TextOID, pgtype.ByteaOID: | ||||
| 		return math.MaxInt64, true | ||||
| 	case pgtype.VarcharOID, pgtype.BPCharArrayOID: | ||||
| 		return int64(fd.TypeModifier - varHeaderSize), true | ||||
| 	default: | ||||
| 		return 0, false | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| // ColumnTypePrecisionScale should return the precision and scale for decimal | ||||
| // types. If not applicable, ok should be false. | ||||
| func (r *Rows) ColumnTypePrecisionScale(index int) (precision, scale int64, ok bool) { | ||||
| 	fd := r.rows.FieldDescriptions()[index] | ||||
| 
 | ||||
| 	switch fd.DataTypeOID { | ||||
| 	case pgtype.NumericOID: | ||||
| 		mod := fd.TypeModifier - varHeaderSize | ||||
| 		precision = int64((mod >> 16) & 0xffff) | ||||
| 		scale = int64(mod & 0xffff) | ||||
| 		return precision, scale, true | ||||
| 	default: | ||||
| 		return 0, 0, false | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| // ColumnTypeScanType returns the value type that can be used to scan types into. | ||||
| func (r *Rows) ColumnTypeScanType(index int) reflect.Type { | ||||
| 	fd := r.rows.FieldDescriptions()[index] | ||||
| 
 | ||||
| 	switch fd.DataTypeOID { | ||||
| 	case pgtype.Float8OID: | ||||
| 		return reflect.TypeOf(float64(0)) | ||||
| 	case pgtype.Float4OID: | ||||
| 		return reflect.TypeOf(float32(0)) | ||||
| 	case pgtype.Int8OID: | ||||
| 		return reflect.TypeOf(int64(0)) | ||||
| 	case pgtype.Int4OID: | ||||
| 		return reflect.TypeOf(int32(0)) | ||||
| 	case pgtype.Int2OID: | ||||
| 		return reflect.TypeOf(int16(0)) | ||||
| 	case pgtype.BoolOID: | ||||
| 		return reflect.TypeOf(false) | ||||
| 	case pgtype.NumericOID: | ||||
| 		return reflect.TypeOf(float64(0)) | ||||
| 	case pgtype.DateOID, pgtype.TimestampOID, pgtype.TimestamptzOID: | ||||
| 		return reflect.TypeOf(time.Time{}) | ||||
| 	case pgtype.ByteaOID: | ||||
| 		return reflect.TypeOf([]byte(nil)) | ||||
| 	default: | ||||
| 		return reflect.TypeOf("") | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| func (r *Rows) Close() error { | ||||
| 	r.rows.Close() | ||||
| 	return r.rows.Err() | ||||
| } | ||||
| 
 | ||||
| func (r *Rows) Next(dest []driver.Value) error { | ||||
| 	m := r.conn.conn.TypeMap() | ||||
| 	fieldDescriptions := r.rows.FieldDescriptions() | ||||
| 
 | ||||
| 	if r.valueFuncs == nil { | ||||
| 		r.valueFuncs = make([]rowValueFunc, len(fieldDescriptions)) | ||||
| 
 | ||||
| 		for i, fd := range fieldDescriptions { | ||||
| 			dataTypeOID := fd.DataTypeOID | ||||
| 			format := fd.Format | ||||
| 
 | ||||
| 			switch fd.DataTypeOID { | ||||
| 			case pgtype.BoolOID: | ||||
| 				var d bool | ||||
| 				scanPlan := m.PlanScan(dataTypeOID, format, &d) | ||||
| 				r.valueFuncs[i] = func(src []byte) (driver.Value, error) { | ||||
| 					err := scanPlan.Scan(src, &d) | ||||
| 					return d, err | ||||
| 				} | ||||
| 			case pgtype.ByteaOID: | ||||
| 				var d []byte | ||||
| 				scanPlan := m.PlanScan(dataTypeOID, format, &d) | ||||
| 				r.valueFuncs[i] = func(src []byte) (driver.Value, error) { | ||||
| 					err := scanPlan.Scan(src, &d) | ||||
| 					return d, err | ||||
| 				} | ||||
| 			case pgtype.CIDOID, pgtype.OIDOID, pgtype.XIDOID: | ||||
| 				var d pgtype.Uint32 | ||||
| 				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.Value() | ||||
| 				} | ||||
| 			case pgtype.DateOID: | ||||
| 				var d pgtype.Date | ||||
| 				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.Value() | ||||
| 				} | ||||
| 			case pgtype.Float4OID: | ||||
| 				var d float32 | ||||
| 				scanPlan := m.PlanScan(dataTypeOID, format, &d) | ||||
| 				r.valueFuncs[i] = func(src []byte) (driver.Value, error) { | ||||
| 					err := scanPlan.Scan(src, &d) | ||||
| 					return float64(d), err | ||||
| 				} | ||||
| 			case pgtype.Float8OID: | ||||
| 				var d float64 | ||||
| 				scanPlan := m.PlanScan(dataTypeOID, format, &d) | ||||
| 				r.valueFuncs[i] = func(src []byte) (driver.Value, error) { | ||||
| 					err := scanPlan.Scan(src, &d) | ||||
| 					return d, err | ||||
| 				} | ||||
| 			case pgtype.Int2OID: | ||||
| 				var d int16 | ||||
| 				scanPlan := m.PlanScan(dataTypeOID, format, &d) | ||||
| 				r.valueFuncs[i] = func(src []byte) (driver.Value, error) { | ||||
| 					err := scanPlan.Scan(src, &d) | ||||
| 					return int64(d), err | ||||
| 				} | ||||
| 			case pgtype.Int4OID: | ||||
| 				var d int32 | ||||
| 				scanPlan := m.PlanScan(dataTypeOID, format, &d) | ||||
| 				r.valueFuncs[i] = func(src []byte) (driver.Value, error) { | ||||
| 					err := scanPlan.Scan(src, &d) | ||||
| 					return int64(d), err | ||||
| 				} | ||||
| 			case pgtype.Int8OID: | ||||
| 				var d int64 | ||||
| 				scanPlan := m.PlanScan(dataTypeOID, format, &d) | ||||
| 				r.valueFuncs[i] = func(src []byte) (driver.Value, error) { | ||||
| 					err := scanPlan.Scan(src, &d) | ||||
| 					return d, err | ||||
| 				} | ||||
| 			case pgtype.JSONOID, pgtype.JSONBOID: | ||||
| 				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 | ||||
| 				} | ||||
| 			case pgtype.TimestampOID: | ||||
| 				var d pgtype.Timestamp | ||||
| 				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.Value() | ||||
| 				} | ||||
| 			case pgtype.TimestamptzOID: | ||||
| 				var d pgtype.Timestamptz | ||||
| 				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.Value() | ||||
| 				} | ||||
| 			default: | ||||
| 				var d string | ||||
| 				scanPlan := m.PlanScan(dataTypeOID, format, &d) | ||||
| 				r.valueFuncs[i] = func(src []byte) (driver.Value, error) { | ||||
| 					err := scanPlan.Scan(src, &d) | ||||
| 					return d, err | ||||
| 				} | ||||
| 			} | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	var more bool | ||||
| 	if r.skipNext { | ||||
| 		more = r.skipNextMore | ||||
| 		r.skipNext = false | ||||
| 	} else { | ||||
| 		more = r.rows.Next() | ||||
| 	} | ||||
| 
 | ||||
| 	if !more { | ||||
| 		if r.rows.Err() == nil { | ||||
| 			return io.EOF | ||||
| 		} else { | ||||
| 			return r.rows.Err() | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	for i, rv := range r.rows.RawValues() { | ||||
| 		if rv != nil { | ||||
| 			var err error | ||||
| 			dest[i], err = r.valueFuncs[i](rv) | ||||
| 			if err != nil { | ||||
| 				return fmt.Errorf("convert field %d failed: %v", i, err) | ||||
| 			} | ||||
| 		} else { | ||||
| 			dest[i] = nil | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	return nil | ||||
| } | ||||
| 
 | ||||
| func valueToInterface(argsV []driver.Value) []any { | ||||
| 	args := make([]any, 0, len(argsV)) | ||||
| 	for _, v := range argsV { | ||||
| 		if v != nil { | ||||
| 			args = append(args, v.(any)) | ||||
| 		} else { | ||||
| 			args = append(args, nil) | ||||
| 		} | ||||
| 	} | ||||
| 	return args | ||||
| } | ||||
| 
 | ||||
| func namedValueToInterface(argsV []driver.NamedValue) []any { | ||||
| 	args := make([]any, 0, len(argsV)) | ||||
| 	for _, v := range argsV { | ||||
| 		if v.Value != nil { | ||||
| 			args = append(args, v.Value.(any)) | ||||
| 		} else { | ||||
| 			args = append(args, nil) | ||||
| 		} | ||||
| 	} | ||||
| 	return args | ||||
| } | ||||
| 
 | ||||
| type wrapTx struct { | ||||
| 	ctx context.Context | ||||
| 	tx  pgx.Tx | ||||
| } | ||||
| 
 | ||||
| func (wtx wrapTx) Commit() error { return wtx.tx.Commit(wtx.ctx) } | ||||
| 
 | ||||
| func (wtx wrapTx) Rollback() error { return wtx.tx.Rollback(wtx.ctx) } | ||||
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