greenplumn CScalarSubqueryAny 代码
文件路径：/src/backend/gporca/libgpopt/include/gpopt/operators/CScalarSubqueryAny.h
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2011 EMC Corp.
/
/ @filename:
/ CScalarSubqueryAny.h
/
/ @doc:
/ Class for scalar subquery ANY operators
/---------------------------------------------------------------------------
#ifndef GPOPT_CScalarSubqueryAny_H
#define GPOPT_CScalarSubqueryAny_H
#include "gpos/base.h"
#include "gpopt/operators/CScalarSubqueryQuantified.h"
namespace gpopt
{
using namespace gpos;
/---------------------------------------------------------------------------
/ @class:
/ CScalarSubqueryAny
/
/ @doc:
/ Scalar subquery ANY.
/ A scalar subquery ANY expression has two children: relational and scalar.
/
/---------------------------------------------------------------------------
class CScalarSubqueryAny : public CScalarSubqueryQuantified
{
private:
public:
CScalarSubqueryAny(const CScalarSubqueryAny &) = delete;
/ ctor
CScalarSubqueryAny(CMemoryPool *mp, IMDId *scalar_op_mdid,
const CWStringConst *pstrScalarOp,
const CColRef *colref);
/ dtor
~CScalarSubqueryAny() override = default;
/ ident accessors
EOperatorId
Eopid() const override
{
return EopScalarSubqueryAny;
}
/ return a string for scalar subquery
const CHAR *
SzId() const override
{
return "CScalarSubqueryAny";
}
/ return a copy of the operator with remapped columns
COperator *PopCopyWithRemappedColumns(CMemoryPool *mp,
UlongToColRefMap *colref_mapping,
BOOL must_exist) override;
/ conversion function
static CScalarSubqueryAny *
PopConvert(COperator *pop)
{
GPOS_ASSERT(nullptr != pop);
GPOS_ASSERT(EopScalarSubqueryAny == pop->Eopid());
return dynamic_cast<CScalarSubqueryAny *>(pop);
}
}; / class CScalarSubqueryAny
} / namespace gpopt
#endif / !GPOPT_CScalarSubqueryAny_H
/ EOF
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