greenplumn CDXLPhysicalBroadcastMotion 源码
greenplumn CDXLPhysicalBroadcastMotion 代码
文件路径:/src/backend/gporca/libnaucrates/src/operators/CDXLPhysicalBroadcastMotion.cpp
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2010 Greenplum, Inc.
//
// @filename:
// CDXLPhysicalBroadcastMotion.cpp
//
// @doc:
// Implementation of DXL physical broadcast motion operator
//---------------------------------------------------------------------------
#include "naucrates/dxl/operators/CDXLPhysicalBroadcastMotion.h"
#include "naucrates/dxl/operators/CDXLNode.h"
#include "naucrates/dxl/xml/CXMLSerializer.h"
using namespace gpos;
using namespace gpdxl;
//---------------------------------------------------------------------------
// @function:
// CDXLPhysicalBroadcastMotion::CDXLPhysicalBroadcastMotion
//
// @doc:
// Constructor
//
//---------------------------------------------------------------------------
CDXLPhysicalBroadcastMotion::CDXLPhysicalBroadcastMotion(CMemoryPool *mp)
: CDXLPhysicalMotion(mp)
{
}
//---------------------------------------------------------------------------
// @function:
// CDXLPhysicalBroadcastMotion::GetDXLOperator
//
// @doc:
// Operator type
//
//---------------------------------------------------------------------------
Edxlopid
CDXLPhysicalBroadcastMotion::GetDXLOperator() const
{
return EdxlopPhysicalMotionBroadcast;
}
//---------------------------------------------------------------------------
// @function:
// CDXLPhysicalBroadcastMotion::GetOpNameStr
//
// @doc:
// Operator name
//
//---------------------------------------------------------------------------
const CWStringConst *
CDXLPhysicalBroadcastMotion::GetOpNameStr() const
{
return CDXLTokens::GetDXLTokenStr(EdxltokenPhysicalBroadcastMotion);
}
//---------------------------------------------------------------------------
// @function:
// CDXLPhysicalBroadcastMotion::SerializeToDXL
//
// @doc:
// Serialize operator in DXL format
//
//---------------------------------------------------------------------------
void
CDXLPhysicalBroadcastMotion::SerializeToDXL(CXMLSerializer *xml_serializer,
const CDXLNode *dxlnode) const
{
const CWStringConst *element_name = GetOpNameStr();
xml_serializer->OpenElement(
CDXLTokens::GetDXLTokenStr(EdxltokenNamespacePrefix), element_name);
SerializeSegmentInfoToDXL(xml_serializer);
// serialize properties
dxlnode->SerializePropertiesToDXL(xml_serializer);
// serialize children
dxlnode->SerializeChildrenToDXL(xml_serializer);
xml_serializer->CloseElement(
CDXLTokens::GetDXLTokenStr(EdxltokenNamespacePrefix), element_name);
}
#ifdef GPOS_DEBUG
//---------------------------------------------------------------------------
// @function:
// CDXLPhysicalBroadcastMotion::AssertValid
//
// @doc:
// Checks whether operator node is well-structured
//
//---------------------------------------------------------------------------
void
CDXLPhysicalBroadcastMotion::AssertValid(const CDXLNode *dxlnode,
BOOL validate_children) const
{
// assert proj list and filter are valid
CDXLPhysical::AssertValid(dxlnode, validate_children);
GPOS_ASSERT(m_input_segids_array != nullptr);
GPOS_ASSERT(0 < m_input_segids_array->Size());
GPOS_ASSERT(m_output_segids_array != nullptr);
GPOS_ASSERT(0 < m_output_segids_array->Size());
GPOS_ASSERT(EdxlbmIndexSentinel == dxlnode->Arity());
CDXLNode *child_dxlnode = (*dxlnode)[EdxlbmIndexChild];
GPOS_ASSERT(EdxloptypePhysical ==
child_dxlnode->GetOperator()->GetDXLOperatorType());
if (validate_children)
{
child_dxlnode->GetOperator()->AssertValid(child_dxlnode,
validate_children);
}
}
#endif // GPOS_DEBUG
// EOF
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