src/include/executor/nodeAgg.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * nodeAgg.h
   4  *        prototypes for nodeAgg.c
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * $PostgreSQL$
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14 #ifndef NODEAGG_H
  15 #define NODEAGG_H
  16
  17 #include "nodes/execnodes.h"
  18
  19 extern int      ExecCountSlotsAgg(Agg *node);
  20 extern AggState *ExecInitAgg(Agg *node, EState *estate, int eflags);
  21 extern TupleTableSlot *ExecAgg(AggState *node);
  22 extern void ExecEndAgg(AggState *node);
  23 extern void ExecReScanAgg(AggState *node, ExprContext *exprCtxt);
  24
  25 extern Size hash_agg_entry_size(int numAggs);
  26
  27 extern Datum aggregate_dummy(PG_FUNCTION_ARGS);
  28
  29 #endif   /* NODEAGG_H */