pool

type Pool interface {
	Close()
	Acquire(ctx context.Context) (*pgxpool.Conn, error)
	AcquireFunc(ctx context.Context, f func(*pgxpool.Conn) error) error
	AcquireAllIdle(ctx context.Context) []*pgxpool.Conn
	Config() *pgxpool.Config
	Exec(ctx context.Context, sql string, arguments ...interface{}) (pgconn.CommandTag, error)
	Query(ctx context.Context, sql string, args ...interface{}) (pgx.Rows, error)
	QueryRow(ctx context.Context, sql string, args ...interface{}) pgx.Row
	QueryFunc(ctx context.Context, sql string, args []interface{}, scans []interface{}, f func(pgx.QueryFuncRow) error) (pgconn.CommandTag, error)
	SendBatch(ctx context.Context, b *pgx.Batch) pgx.BatchResults
	Begin(ctx context.Context) (pgx.Tx, error)
	BeginTx(ctx context.Context, txOptions pgx.TxOptions) (pgx.Tx, error)
	BeginFunc(ctx context.Context, f func(pgx.Tx) error) error
	BeginTxFunc(ctx context.Context, txOptions pgx.TxOptions, f func(pgx.Tx) error) error
	CopyFrom(ctx context.Context, tableName pgx.Identifier, columnNames []string, rowSrc pgx.CopyFromSource) (int64, error)
	Ping(ctx context.Context) error
}