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