greenplumn CScalarBitmapBoolOp 源码
greenplumn CScalarBitmapBoolOp 代码
文件路径:/src/backend/gporca/libgpopt/src/operators/CScalarBitmapBoolOp.cpp
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2014 VMware, Inc. or its affiliates.
//
// @filename:
// CScalarBitmapBoolOp.cpp
//
// @doc:
// Bitmap index probe scalar operator
//
// @owner:
//
//
// @test:
//
//---------------------------------------------------------------------------
#include "gpopt/operators/CScalarBitmapBoolOp.h"
#include "gpopt/base/CColRef.h"
#include "gpopt/base/COptCtxt.h"
#include "gpopt/metadata/CIndexDescriptor.h"
#include "gpopt/metadata/CTableDescriptor.h"
#include "gpopt/operators/CExpressionHandle.h"
#include "gpopt/xforms/CXform.h"
#include "naucrates/statistics/CStatisticsUtils.h"
using namespace gpopt;
const WCHAR CScalarBitmapBoolOp::m_rgwszBitmapOpType[EbitmapboolSentinel][30] =
{GPOS_WSZ_LIT("BitmapAnd"), GPOS_WSZ_LIT("BitmapOr")};
//---------------------------------------------------------------------------
// @function:
// CScalarBitmapBoolOp::CScalarBitmapBoolOp
//
// @doc:
// Ctor
// Takes ownership of the bitmap type id.
//
//---------------------------------------------------------------------------
CScalarBitmapBoolOp::CScalarBitmapBoolOp(CMemoryPool *mp,
EBitmapBoolOp ebitmapboolop,
IMDId *pmdidBitmapType)
: CScalar(mp),
m_ebitmapboolop(ebitmapboolop),
m_pmdidBitmapType(pmdidBitmapType)
{
GPOS_ASSERT(nullptr != mp);
GPOS_ASSERT(EbitmapboolSentinel > ebitmapboolop);
GPOS_ASSERT(nullptr != pmdidBitmapType);
}
//---------------------------------------------------------------------------
// @function:
// CScalarBitmapBoolOp::~CScalarBitmapBoolOp
//
// @doc:
// Dtor
//
//---------------------------------------------------------------------------
CScalarBitmapBoolOp::~CScalarBitmapBoolOp()
{
m_pmdidBitmapType->Release();
}
//---------------------------------------------------------------------------
// @function:
// CScalarBitmapBoolOp::HashValue
//
// @doc:
// Operator specific hash function
//
//---------------------------------------------------------------------------
ULONG
CScalarBitmapBoolOp::HashValue() const
{
ULONG ulBoolop = (ULONG) Ebitmapboolop();
return gpos::CombineHashes(COperator::HashValue(),
gpos::HashValue<ULONG>(&ulBoolop));
}
//---------------------------------------------------------------------------
// @function:
// CScalarBitmapBoolOp::Matches
//
// @doc:
// Match this operator with the given one.
//
//---------------------------------------------------------------------------
BOOL
CScalarBitmapBoolOp::Matches(COperator *pop) const
{
if (pop->Eopid() != Eopid())
{
return false;
}
CScalarBitmapBoolOp *popBitmapBoolOp = PopConvert(pop);
return popBitmapBoolOp->Ebitmapboolop() == Ebitmapboolop() &&
popBitmapBoolOp->MdidType()->Equals(m_pmdidBitmapType);
}
//---------------------------------------------------------------------------
// @function:
// CScalarBitmapBoolOp::OsPrint
//
// @doc:
// Debug print of this operator
//
//---------------------------------------------------------------------------
IOstream &
CScalarBitmapBoolOp::OsPrint(IOstream &os) const
{
os << SzId() << " (";
os << m_rgwszBitmapOpType[m_ebitmapboolop];
os << ")";
return os;
}
// EOF
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