greenplumn CDXLPhysicalCTEConsumer 源码

greenplumn CDXLPhysicalCTEConsumer 代码

文件路径：/src/backend/gporca/libnaucrates/src/operators/CDXLPhysicalCTEConsumer.cpp

//---------------------------------------------------------------------------
//	Greenplum Database
//	Copyright (C) 2012 EMC Corp.
//
//	@filename:
//		CDXLPhysicalCTEConsumer.cpp
//
//	@doc:
//		Implementation of DXL physical CTE Consumer operator
//---------------------------------------------------------------------------

#include "naucrates/dxl/operators/CDXLPhysicalCTEConsumer.h"

#include "gpos/string/CWStringDynamic.h"

#include "naucrates/dxl/CDXLUtils.h"
#include "naucrates/dxl/operators/CDXLNode.h"
#include "naucrates/dxl/xml/CXMLSerializer.h"
#include "naucrates/dxl/xml/dxltokens.h"

using namespace gpos;
using namespace gpdxl;

//---------------------------------------------------------------------------
//	@function:
//		CDXLPhysicalCTEConsumer::CDXLPhysicalCTEConsumer
//
//	@doc:
//		Ctor
//
//---------------------------------------------------------------------------
CDXLPhysicalCTEConsumer::CDXLPhysicalCTEConsumer(
	CMemoryPool *mp, ULONG id, ULongPtrArray *output_colids_array)
	: CDXLPhysical(mp), m_id(id), m_output_colids_array(output_colids_array)
{
	GPOS_ASSERT(nullptr != output_colids_array);
}

//---------------------------------------------------------------------------
//	@function:
//		CDXLPhysicalCTEConsumer::~CDXLPhysicalCTEConsumer
//
//	@doc:
//		Dtor
//
//---------------------------------------------------------------------------
CDXLPhysicalCTEConsumer::~CDXLPhysicalCTEConsumer()
{
	m_output_colids_array->Release();
}

//---------------------------------------------------------------------------
//	@function:
//		CDXLPhysicalCTEConsumer::GetDXLOperator
//
//	@doc:
//		Operator type
//
//---------------------------------------------------------------------------
Edxlopid
CDXLPhysicalCTEConsumer::GetDXLOperator() const
{
	return EdxlopPhysicalCTEConsumer;
}

//---------------------------------------------------------------------------
//	@function:
//		CDXLPhysicalCTEConsumer::GetOpNameStr
//
//	@doc:
//		Operator name
//
//---------------------------------------------------------------------------
const CWStringConst *
CDXLPhysicalCTEConsumer::GetOpNameStr() const
{
	return CDXLTokens::GetDXLTokenStr(EdxltokenPhysicalCTEConsumer);
}

//---------------------------------------------------------------------------
//	@function:
//		CDXLPhysicalCTEConsumer::SerializeToDXL
//
//	@doc:
//		Serialize operator in DXL format
//
//---------------------------------------------------------------------------
void
CDXLPhysicalCTEConsumer::SerializeToDXL(CXMLSerializer *xml_serializer,
										const CDXLNode *dxlnode) const
{
	const CWStringConst *element_name = GetOpNameStr();

	xml_serializer->OpenElement(
		CDXLTokens::GetDXLTokenStr(EdxltokenNamespacePrefix), element_name);
	xml_serializer->AddAttribute(CDXLTokens::GetDXLTokenStr(EdxltokenCTEId),
								 Id());

	CWStringDynamic *str_colids =
		CDXLUtils::Serialize(m_mp, m_output_colids_array);
	xml_serializer->AddAttribute(CDXLTokens::GetDXLTokenStr(EdxltokenColumns),
								 str_colids);
	GPOS_DELETE(str_colids);

	// serialize properties
	dxlnode->SerializePropertiesToDXL(xml_serializer);

	dxlnode->SerializeChildrenToDXL(xml_serializer);
	xml_serializer->CloseElement(
		CDXLTokens::GetDXLTokenStr(EdxltokenNamespacePrefix), element_name);
}

#ifdef GPOS_DEBUG
//---------------------------------------------------------------------------
//	@function:
//		CDXLPhysicalCTEConsumer::AssertValid
//
//	@doc:
//		Checks whether operator node is well-structured
//
//---------------------------------------------------------------------------
void
CDXLPhysicalCTEConsumer::AssertValid(const CDXLNode *dxlnode,
									 BOOL validate_children) const
{
	GPOS_ASSERT(1 == dxlnode->Arity());

	CDXLNode *dxlnode_proj_list = (*dxlnode)[0];
	GPOS_ASSERT(EdxlopScalarProjectList ==
				dxlnode_proj_list->GetOperator()->GetDXLOperator());

	if (validate_children)
	{
		dxlnode_proj_list->GetOperator()->AssertValid(dxlnode_proj_list,
													  validate_children);
	}
}
#endif	// GPOS_DEBUG

// EOF

相关信息

greenplumn 源码目录

相关文章

greenplumn CDXLColDescr 源码

greenplumn CDXLColRef 源码

greenplumn CDXLCtasStorageOptions 源码

greenplumn CDXLDatum 源码

greenplumn CDXLDatumBool 源码

greenplumn CDXLDatumGeneric 源码

greenplumn CDXLDatumInt2 源码

greenplumn CDXLDatumInt4 源码

greenplumn CDXLDatumInt8 源码

greenplumn CDXLDatumOid 源码