greenplumn CDXLPhysicalAbstractBitmapScan 源码
greenplumn CDXLPhysicalAbstractBitmapScan 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/operators/CDXLPhysicalAbstractBitmapScan.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2014 VMware, Inc. or its affiliates.
//
// @filename:
// CDXLPhysicalAbstractBitmapScan.h
//
// @doc:
// Parent class for representing DXL bitmap table scan operators,
// both not partitioned and dynamic.
//---------------------------------------------------------------------------
#ifndef GPDXL_CDXLPhysicalAbstractBitmapScan_H
#define GPDXL_CDXLPhysicalAbstractBitmapScan_H
#include "gpos/base.h"
#include "naucrates/dxl/operators/CDXLPhysical.h"
namespace gpdxl
{
using namespace gpos;
enum Edxlbs
{
EdxlbsIndexProjList = 0,
EdxlbsIndexFilter,
EdxlbsIndexRecheckCond,
EdxlbsIndexBitmap,
EdxlbsSentinel
};
// fwd declarations
class CDXLTableDescr;
class CXMLSerializer;
//---------------------------------------------------------------------------
// @class:
// CDXLPhysicalAbstractBitmapScan
//
// @doc:
// Parent class for representing DXL bitmap table scan operators, both not
// partitioned and dynamic.
//
//---------------------------------------------------------------------------
class CDXLPhysicalAbstractBitmapScan : public CDXLPhysical
{
private:
protected:
// table descriptor for the scanned table
CDXLTableDescr *m_dxl_table_descr;
public:
CDXLPhysicalAbstractBitmapScan(const CDXLPhysicalAbstractBitmapScan &) =
delete;
// ctor
CDXLPhysicalAbstractBitmapScan(CMemoryPool *mp, CDXLTableDescr *table_descr)
: CDXLPhysical(mp), m_dxl_table_descr(table_descr)
{
GPOS_ASSERT(nullptr != table_descr);
}
// dtor
~CDXLPhysicalAbstractBitmapScan() override;
// table descriptor
const CDXLTableDescr *
GetDXLTableDescr()
{
return m_dxl_table_descr;
}
#ifdef GPOS_DEBUG
// checks whether the operator has valid structure, i.e. number and
// types of child nodes
void AssertValid(const CDXLNode *node,
BOOL validate_children) const override;
#endif // GPOS_DEBUG
}; // class CDXLPhysicalAbstractBitmapScan
} // namespace gpdxl
#endif // !GPDXL_CDXLPhysicalAbstractBitmapScan_H
// EOF
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