greenplumn CLogicalLeftSemiApplyIn 代码
文件路径：/src/backend/gporca/libgpopt/include/gpopt/operators/CLogicalLeftSemiApplyIn.h
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright 2014 VMware, Inc. or its affiliates.
/
/ @filename:
/ CLogicalLeftSemiApplyIn.h
/
/ @doc:
/ Logical Left Semi Apply operator used in IN/ANY subqueries
/---------------------------------------------------------------------------
#ifndef GPOPT_CLogicalLeftSemiApplyIn_H
#define GPOPT_CLogicalLeftSemiApplyIn_H
#include "gpos/base.h"
#include "gpopt/operators/CExpressionHandle.h"
#include "gpopt/operators/CLogicalLeftSemiApply.h"
namespace gpopt
{
/---------------------------------------------------------------------------
/ @class:
/ CLogicalLeftSemiApplyIn
/
/ @doc:
/ Logical Apply operator used in IN/ANY subqueries
/
/---------------------------------------------------------------------------
class CLogicalLeftSemiApplyIn : public CLogicalLeftSemiApply
{
private:
public:
CLogicalLeftSemiApplyIn(const CLogicalLeftSemiApplyIn &) = delete;
/ ctor
explicit CLogicalLeftSemiApplyIn(CMemoryPool *mp)
: CLogicalLeftSemiApply(mp)
{
}
/ ctor
CLogicalLeftSemiApplyIn(CMemoryPool *mp, CColRefArray *pdrgpcrInner,
EOperatorId eopidOriginSubq)
: CLogicalLeftSemiApply(mp, pdrgpcrInner, eopidOriginSubq)
{
}
/ dtor
~CLogicalLeftSemiApplyIn() override = default;
/ ident accessors
EOperatorId
Eopid() const override
{
return EopLogicalLeftSemiApplyIn;
}
/ return a string for operator name
const CHAR *
SzId() const override
{
return "CLogicalLeftSemiApplyIn";
}
/-------------------------------------------------------------------------------------
/ Transformations
/-------------------------------------------------------------------------------------
/ candidate set of xforms
CXformSet *PxfsCandidates(CMemoryPool *mp) const override;
/-------------------------------------------------------------------------------------
/-------------------------------------------------------------------------------------
/-------------------------------------------------------------------------------------
/ return a copy of the operator with remapped columns
COperator *PopCopyWithRemappedColumns(CMemoryPool *mp,
UlongToColRefMap *colref_mapping,
BOOL must_exist) override;
/ conversion function
static CLogicalLeftSemiApplyIn *
PopConvert(COperator *pop)
{
GPOS_ASSERT(nullptr != pop);
GPOS_ASSERT(EopLogicalLeftSemiApplyIn == pop->Eopid());
return dynamic_cast<CLogicalLeftSemiApplyIn *>(pop);
}
}; / class CLogicalLeftSemiApplyIn
} / namespace gpopt
#endif / !GPOPT_CLogicalLeftSemiApplyIn_H
/ EOF
相关信息
相关文章
greenplumn CExpressionFactorizer 源码
greenplumn CExpressionHandle 源码
greenplumn CExpressionPreprocessor 源码
greenplumn CExpressionUtils 源码