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66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
/*
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* The contents of this file are subject to the Initial
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* Developer's Public License Version 1.0 (the "License");
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* you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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* http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
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*
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* Software distributed under the License is distributed AS IS,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied.
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* See the License for the specific language governing rights
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* and limitations under the License.
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*
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* The Original Code was created by Adriano dos Santos Fernandes
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* for the Firebird Open Source RDBMS project.
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*
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* Copyright (c) 2009 Adriano dos Santos Fernandes <adrianosf@uol.com.br>
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* and all contributors signed below.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*/
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#ifndef JRD_AGGREGATE_RSB_H
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#define JRD_AGGREGATE_RSB_H
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#include "../jrd/VirtualTable.h"
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namespace Jrd {
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class AggregateRsb : public RecordStream
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{
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private:
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AggregateRsb(RecordSource* aRsb, jrd_nod* aAggNode);
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public:
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static RecordSource* create(thread_db* tdbb, OptimizerBlk* opt, jrd_nod* node,
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NodeStack& deliverStack, RecordSelExpr* rse);
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public:
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virtual void findRsbs(StreamStack* streamList, RsbStack* rsbList);
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virtual void invalidate(thread_db* tdbb, record_param* rpb);
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virtual unsigned dump(UCHAR* buffer, unsigned bufferLen);
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virtual void open(thread_db* tdbb, jrd_req* request);
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virtual void close(thread_db* tdbb);
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virtual bool get(thread_db* tdbb, jrd_req* request);
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virtual void markRecursive();
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private:
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USHORT evlGroup(thread_db* tdbb, jrd_req* request, USHORT state);
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void initDistinct(jrd_req* request, const jrd_nod* node);
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void computeDistinct(thread_db* tdbb, jrd_req* request, jrd_nod* node);
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void finiDistinct(jrd_req* request, const jrd_nod* const node);
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private:
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jrd_nod* aggNode;
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RecordSource* next;
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};
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} // namespace Jrd
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#endif // JRD_AGGREGATE_RSB_H
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