AggInvocation.h

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00001 /*
00002 // $Id: //open/dev/fennel/exec/AggInvocation.h#5 $
00003 // Fennel is a library of data storage and processing components.
00004 // Copyright (C) 2005-2009 The Eigenbase Project
00005 // Copyright (C) 2005-2009 SQLstream, Inc.
00006 // Copyright (C) 2005-2009 LucidEra, Inc.
00007 //
00008 // This program is free software; you can redistribute it and/or modify it
00009 // under the terms of the GNU General Public License as published by the Free
00010 // Software Foundation; either version 2 of the License, or (at your option)
00011 // any later version approved by The Eigenbase Project.
00012 //
00013 // This program is distributed in the hope that it will be useful,
00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016 // GNU General Public License for more details.
00017 //
00018 // You should have received a copy of the GNU General Public License
00019 // along with this program; if not, write to the Free Software
00020 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00021 */
00022 
00023 #ifndef Fennel_AggInvocation_Included
00024 #define Fennel_AggInvocation_Included
00025 
00026 #include "fennel/common/FemEnums.h"
00027 
00028 FENNEL_BEGIN_NAMESPACE
00029 
00036 struct FENNEL_EXEC_EXPORT AggInvocation
00037 {
00041     AggFunction aggFunction;
00042 
00043     // TODO jvs 6-Oct-2005: May need to generalize this to a
00044     // TupleProjection, since I think SQL:2003 allows SUM(A,B), producing
00045     // a ROW result value; need to check.
00050     int iInputAttr;
00051 };
00052 
00053 typedef std::vector<AggInvocation> AggInvocationList;
00054 typedef std::vector<AggInvocation>::iterator AggInvocationIter;
00055 typedef std::vector<AggInvocation>::const_iterator AggInvocationConstIter;
00056 
00057 FENNEL_END_NAMESPACE
00058 
00059 #endif
00060 
00061 // End AggInvocation.h

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