greenplumn CLogicalInnerCorrelatedApply 代码
文件路径：/src/backend/gporca/libgpopt/src/operators/CLogicalInnerCorrelatedApply.cpp
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2012 EMC Corp.
/
/ @filename:
/ CLogicalInnerCorrelatedApply.cpp
/
/ @doc:
/ Implementation of inner correlated apply operator
/---------------------------------------------------------------------------
#include "gpopt/operators/CLogicalInnerCorrelatedApply.h"
#include "gpos/base.h"
using namespace gpopt;
/---------------------------------------------------------------------------
/ @function:
/ CLogicalInnerCorrelatedApply::CLogicalInnerCorrelatedApply
/
/ @doc:
/ Ctor - for patterns
/
/---------------------------------------------------------------------------
CLogicalInnerCorrelatedApply::CLogicalInnerCorrelatedApply(CMemoryPool *mp)
: CLogicalInnerApply(mp)
{
}
/---------------------------------------------------------------------------
/ @function:
/ CLogicalInnerCorrelatedApply::CLogicalInnerCorrelatedApply
/
/ @doc:
/ Ctor
/
/---------------------------------------------------------------------------
CLogicalInnerCorrelatedApply::CLogicalInnerCorrelatedApply(
CMemoryPool *mp, CColRefArray *pdrgpcrInner, EOperatorId eopidOriginSubq)
: CLogicalInnerApply(mp, pdrgpcrInner, eopidOriginSubq)
{
}
/---------------------------------------------------------------------------
/ @function:
/ CLogicalInnerCorrelatedApply::PxfsCandidates
/
/ @doc:
/ Get candidate xforms
/
/---------------------------------------------------------------------------
CXformSet *
CLogicalInnerCorrelatedApply::PxfsCandidates(CMemoryPool *mp) const
{
CXformSet *xform_set = GPOS_NEW(mp) CXformSet(mp);
(void) xform_set->ExchangeSet(CXform::ExfImplementInnerCorrelatedApply);
return xform_set;
}
/---------------------------------------------------------------------------
/ @function:
/ CLogicalInnerCorrelatedApply::Matches
/
/ @doc:
/ Match function
/
/---------------------------------------------------------------------------
BOOL
CLogicalInnerCorrelatedApply::Matches(COperator *pop) const
{
if (pop->Eopid() == Eopid())
{
return m_pdrgpcrInner->Equals(
CLogicalInnerCorrelatedApply::PopConvert(pop)->PdrgPcrInner());
}
return false;
}
/---------------------------------------------------------------------------
/ @function:
/ CLogicalInnerCorrelatedApply::PopCopyWithRemappedColumns
/
/ @doc:
/ Return a copy of the operator with remapped columns
/
/---------------------------------------------------------------------------
COperator *
CLogicalInnerCorrelatedApply::PopCopyWithRemappedColumns(
CMemoryPool *mp, UlongToColRefMap *colref_mapping, BOOL must_exist)
{
CColRefArray *pdrgpcrInner =
CUtils::PdrgpcrRemap(mp, m_pdrgpcrInner, colref_mapping, must_exist);
return GPOS_NEW(mp)
CLogicalInnerCorrelatedApply(mp, pdrgpcrInner, m_eopidOriginSubq);
}
/ EOF
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