greenplumn CDXLPhysicalBitmapTableScan 源码
greenplumn CDXLPhysicalBitmapTableScan 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/operators/CDXLPhysicalBitmapTableScan.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2014 VMware, Inc. or its affiliates.
//
// @filename:
// CDXLPhysicalBitmapTableScan.h
//
// @doc:
// Class for representing DXL bitmap table scan operators.
//---------------------------------------------------------------------------
#ifndef GPDXL_CDXLPhysicalBitmapTableScan_H
#define GPDXL_CDXLPhysicalBitmapTableScan_H
#include "gpos/base.h"
#include "naucrates/dxl/operators/CDXLPhysicalAbstractBitmapScan.h"
namespace gpdxl
{
using namespace gpos;
// fwd declarations
class CDXLTableDescr;
class CXMLSerializer;
//---------------------------------------------------------------------------
// @class:
// CDXLPhysicalBitmapTableScan
//
// @doc:
// Class for representing DXL bitmap table scan operators
//
//---------------------------------------------------------------------------
class CDXLPhysicalBitmapTableScan : public CDXLPhysicalAbstractBitmapScan
{
private:
public:
CDXLPhysicalBitmapTableScan(const CDXLPhysicalBitmapTableScan &) = delete;
// ctors
CDXLPhysicalBitmapTableScan(CMemoryPool *mp, CDXLTableDescr *table_descr)
: CDXLPhysicalAbstractBitmapScan(mp, table_descr)
{
}
// dtor
~CDXLPhysicalBitmapTableScan() override = default;
// operator type
Edxlopid
GetDXLOperator() const override
{
return EdxlopPhysicalBitmapTableScan;
}
// operator name
const CWStringConst *GetOpNameStr() const override;
// serialize operator in DXL format
void SerializeToDXL(CXMLSerializer *xml_serializer,
const CDXLNode *dxlnode) const override;
// conversion function
static CDXLPhysicalBitmapTableScan *
Cast(CDXLOperator *dxl_op)
{
GPOS_ASSERT(nullptr != dxl_op);
GPOS_ASSERT(EdxlopPhysicalBitmapTableScan == dxl_op->GetDXLOperator());
return dynamic_cast<CDXLPhysicalBitmapTableScan *>(dxl_op);
}
}; // class CDXLPhysicalBitmapTableScan
} // namespace gpdxl
#endif // !GPDXL_CDXLPhysicalBitmapTableScan_H
// EOF
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