granicus.if.org Git - postgresql/blob - src/include/parser/parse_agg.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * parse_agg.h
   4  *        handle aggregates and window functions in parser
   5  *
   6  * Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  * src/include/parser/parse_agg.h
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13 #ifndef PARSE_AGG_H
  14 #define PARSE_AGG_H
  15
  16 #include "parser/parse_node.h"
  17
  18 extern void transformAggregateCall(ParseState *pstate, Aggref *agg,
  19                                            List *args, List *aggorder,
  20                                            bool agg_distinct);
  21 extern void transformWindowFuncCall(ParseState *pstate, WindowFunc *wfunc,
  22                                                 WindowDef *windef);
  23
  24 extern void parseCheckAggregates(ParseState *pstate, Query *qry);
  25
  26 extern int      get_aggregate_argtypes(Aggref *aggref, Oid *inputTypes);
  27
  28 extern Oid resolve_aggregate_transtype(Oid aggfuncid,
  29                                                         Oid aggtranstype,
  30                                                         Oid *inputTypes,
  31                                                         int numArguments);
  32
  33 extern void build_aggregate_fnexprs(Oid *agg_input_types,
  34                                                 int agg_num_inputs,
  35                                                 int agg_num_direct_inputs,
  36                                                 bool agg_ordered_set,
  37                                                 bool agg_variadic,
  38                                                 Oid agg_state_type,
  39                                                 Oid agg_result_type,
  40                                                 Oid agg_input_collation,
  41                                                 Oid transfn_oid,
  42                                                 Oid invtransfn_oid,
  43                                                 Oid finalfn_oid,
  44                                                 Expr **transfnexpr,
  45                                                 Expr **invtransfnexpr,
  46                                                 Expr **finalfnexpr);
  47
  48 #endif   /* PARSE_AGG_H */