greenplumn CLogicalLeftSemiApplyIn 源码
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
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