//
// If a [Conn] implements neither [ExecerContext] nor [Execer],
// the [database/sql.DB.Exec] will first prepare a query, execute the statement,
// and then close the statement.
//
// Exec may return [ErrSkip].
//
// Deprecated: Drivers should implement [ExecerContext] instead.
type Execer interface {
	Exec(query string, args []Value) (Result, error)
}

}

func (db *DB) execDC(ctx context.Context, dc *driverConn, release func(error), query string, args []any) (res Result, err error) {
	defer func() {
		release(err)
	}()
	execerCtx, ok := dc.ci.(driver.ExecerContext)
	var execer driver.Execer
	if !ok {
		execer, ok = dc.ci.(driver.Execer)
	}
	if ok {
		var nvdargs []driver.NamedValue
		var resi driver.Result
		withLock(dc, func() {

	if err != nil {
		return nil, err
	}
	return &ctxOnlyConn{fc: conn.(*fakeConn)}, nil
}

var (
	_ driver.Conn           = &ctxOnlyConn{}
	_ driver.QueryerContext = &ctxOnlyConn{}
	_ driver.ExecerContext  = &ctxOnlyConn{}
)

type ctxOnlyConn struct {
	fc *fakeConn

	queryCtxCalled bool
	execCtxCalled  bool
}

func (c *ctxOnlyConn) Begin() (driver.Tx, error) {

		{"Driver", Type, 0},
		{"DriverContext", Type, 10},
		{"ErrBadConn", Var, 0},
		{"ErrRemoveArgument", Var, 9},
		{"ErrSkip", Var, 0},
		{"Execer", Type, 0},
		{"ExecerContext", Type, 8},
		{"Int32", Var, 0},
		{"IsScanValue", Func, 0},
		{"IsValue", Func, 0},
		{"IsolationLevel", Type, 8},
		{"NamedValue", Type, 8},
		{"NamedValue.Name", Field, 8},