greenplumn CScalarArrayCoerceExpr 代码
文件路径：/src/backend/gporca/libgpopt/include/gpopt/operators/CScalarArrayCoerceExpr.h
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2017 VMware, Inc. or its affiliates.
/
/ @filename:
/ CScalarArrayCoerceExpr.h
/
/ @doc:
/ Scalar Array Coerce Expr operator,
/ the operator will apply type casting for each element in this array
/ using the given element coercion function.
/
/ @owner:
/
/ @test:
/
/
/---------------------------------------------------------------------------
#ifndef GPOPT_CScalarArrayCoerceExpr_H
#define GPOPT_CScalarArrayCoerceExpr_H
#include "gpos/base.h"
#include "gpopt/operators/CScalarCoerceBase.h"
namespace gpopt
{
using namespace gpos;
/---------------------------------------------------------------------------
/ @class:
/ CScalarArrayCoerceExpr
/
/ @doc:
/ Scalar Array Coerce Expr operator
/
/---------------------------------------------------------------------------
class CScalarArrayCoerceExpr : public CScalarCoerceBase
{
private:
/ catalog MDId of the element function
IMDId *m_pmdidElementFunc;
/ conversion semantics flag to pass to func
BOOL m_is_explicit;
public:
CScalarArrayCoerceExpr(const CScalarArrayCoerceExpr &) = delete;
/ ctor
CScalarArrayCoerceExpr(CMemoryPool *mp, IMDId *element_func,
IMDId *result_type_mdid, INT type_modifier,
BOOL is_explicit, ECoercionForm dxl_coerce_format,
INT location);
/ dtor
~CScalarArrayCoerceExpr() override;
/ return metadata id of element coerce function
IMDId *PmdidElementFunc() const;
BOOL IsExplicit() const;
EOperatorId Eopid() const override;
/ return a string for operator name
const CHAR *SzId() const override;
/ match function
BOOL Matches(COperator *pop) const override;
/ sensitivity to order of inputs
BOOL FInputOrderSensitive() const override;
/ conversion function
static CScalarArrayCoerceExpr *PopConvert(COperator *pop);
}; / class CScalarArrayCoerceExpr
} / namespace gpopt
#endif / !GPOPT_CScalarArrayCoerceExpr_H
/ EOF
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