greenplumn CDXLLogicalInsert 源码
greenplumn CDXLLogicalInsert 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/operators/CDXLLogicalInsert.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2012 EMC Corp.
//
// @filename:
// CDXLLogicalInsert.h
//
// @doc:
// Class for representing logical insert operators
//---------------------------------------------------------------------------
#ifndef GPDXL_CDXLLogicalInsert_H
#define GPDXL_CDXLLogicalInsert_H
#include "gpos/base.h"
#include "naucrates/dxl/operators/CDXLLogical.h"
namespace gpdxl
{
using namespace gpmd;
// fwd decl
class CDXLTableDescr;
//---------------------------------------------------------------------------
// @class:
// CDXLLogicalInsert
//
// @doc:
// Class for representing logical insert operators
//
//---------------------------------------------------------------------------
class CDXLLogicalInsert : public CDXLLogical
{
private:
// target table descriptor
CDXLTableDescr *m_dxl_table_descr;
// list of source column ids
ULongPtrArray *m_src_colids_array;
public:
CDXLLogicalInsert(const CDXLLogicalInsert &) = delete;
// ctor/dtor
CDXLLogicalInsert(CMemoryPool *mp, CDXLTableDescr *table_descr,
ULongPtrArray *src_colids_array);
~CDXLLogicalInsert() override;
// operator type
Edxlopid GetDXLOperator() const override;
// operator name
const CWStringConst *GetOpNameStr() const override;
// target table descriptor
CDXLTableDescr *
GetDXLTableDescr() const
{
return m_dxl_table_descr;
}
// source column ids
ULongPtrArray *
GetSrcColIdsArray() const
{
return m_src_colids_array;
}
#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
// serialize operator in DXL format
void SerializeToDXL(CXMLSerializer *xml_serializer,
const CDXLNode *node) const override;
// conversion function
static CDXLLogicalInsert *
Cast(CDXLOperator *dxl_op)
{
GPOS_ASSERT(nullptr != dxl_op);
GPOS_ASSERT(EdxlopLogicalInsert == dxl_op->GetDXLOperator());
return dynamic_cast<CDXLLogicalInsert *>(dxl_op);
}
};
} // namespace gpdxl
#endif // !GPDXL_CDXLLogicalInsert_H
// EOF
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