greenplumn CDXLPhysical 源码
greenplumn CDXLPhysical 代码
文件路径：/src/backend/gporca/libnaucrates/src/operators/CDXLPhysical.cpp
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2010 Greenplum, Inc.
//
// @filename:
// CDXLPhysical.cpp
//
// @doc:
// Implementation of DXL physical operators
//---------------------------------------------------------------------------
#include "naucrates/dxl/operators/CDXLPhysical.h"
#include "naucrates/dxl/operators/CDXLNode.h"
#include "naucrates/dxl/xml/CXMLSerializer.h"
using namespace gpdxl;
//---------------------------------------------------------------------------
// @function:
// CDXLPhysical::CDXLPhysical
//
// @doc:
// Ctor
//
//---------------------------------------------------------------------------
CDXLPhysical::CDXLPhysical(CMemoryPool *mp) : CDXLOperator(mp)
{
}
//---------------------------------------------------------------------------
// @function:
// CDXLPhysical::~CDXLPhysical
//
// @doc:
// Dtor
//
//---------------------------------------------------------------------------
CDXLPhysical::~CDXLPhysical() = default;
//---------------------------------------------------------------------------
// @function:
// CDXLPhysical::GetDXLOperatorType
//
// @doc:
// Operator Type
//
//---------------------------------------------------------------------------
Edxloptype
CDXLPhysical::GetDXLOperatorType() const
{
return EdxloptypePhysical;
}
#ifdef GPOS_DEBUG
//---------------------------------------------------------------------------
// @function:
// CDXLPhysical::AssertValid
//
// @doc:
// Checks whether operator node is well-structured
//
//---------------------------------------------------------------------------
void
CDXLPhysical::AssertValid(const CDXLNode *node, BOOL validate_children) const
{
GPOS_ASSERT(nullptr != node);
GPOS_ASSERT(2 <= node->Arity());
CDXLNode *proj_list_dxlnode = (*node)[0];
CDXLNode *filter_dxlnode = (*node)[1];
GPOS_ASSERT(EdxlopScalarProjectList ==
proj_list_dxlnode->GetOperator()->GetDXLOperator());
GPOS_ASSERT(EdxlopScalarFilter ==
filter_dxlnode->GetOperator()->GetDXLOperator());
if (validate_children)
{
proj_list_dxlnode->GetOperator()->AssertValid(proj_list_dxlnode,
validate_children);
filter_dxlnode->GetOperator()->AssertValid(filter_dxlnode,
validate_children);
}
}
#endif // GPOS_DEBUG
// EOF
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