pkg database/sql/driver, type ConnBeginTx interface, BeginTx(context.Context, TxOptions) (Tx, error)
pkg database/sql/driver, type ConnPrepareContext interface { PrepareContext }
pkg database/sql/driver, type ConnPrepareContext interface, PrepareContext(context.Context, string) (Stmt, error)
pkg database/sql/driver, type ExecerContext interface { ExecContext }

	}
	return stmt, nil
}

// hook to simulate broken connections
var hookPrepareBadConn func() bool

func (c *fakeConn) Prepare(query string) (driver.Stmt, error) {
	panic("use PrepareContext")
}

func (c *fakeConn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
	c.numPrepare++
	if c.db == nil {
		panic("nil c.db; conn = " + fmt.Sprintf("%#v", c))
	}

}

// ConnPrepareContext enhances the [Conn] interface with context.
type ConnPrepareContext interface {
	// PrepareContext returns a prepared statement, bound to this connection.
	// context is for the preparation of the statement,
	// it must not store the context within the statement itself.
	PrepareContext(ctx context.Context, query string) (Stmt, error)
}

pkg database/sql, method (*Conn) ExecContext(context.Context, string, ...interface{}) (Result, error)
pkg database/sql, method (*Conn) PingContext(context.Context) error
pkg database/sql, method (*Conn) PrepareContext(context.Context, string) (*Stmt, error)
pkg database/sql, method (*Conn) QueryContext(context.Context, string, ...interface{}) (*Rows, error)