granicus.if.org Git - postgresql/blob - src/include/optimizer/prep.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * prep.h--
   4  *        prototypes for files in prep.c
   5  *
   6  *
   7  * Copyright (c) 1994, Regents of the University of California
   8  *
   9  * $Id: prep.h,v 1.10 1997/12/24 06:06:58 momjian Exp $
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13 #ifndef PREP_H
  14 #define PREP_H
  15
  16 #include <nodes/plannodes.h>
  17 #include <nodes/parsenodes.h>
  18
  19 /*
  20  * prototypes for prepqual.h
  21  */
  22 extern List *cnfify(Expr *qual, bool removeAndFlag);
  23
  24 /*
  25  * prototypes for preptlist.h
  26  */
  27 extern List *preprocess_targetlist(List *tlist, int command_type,
  28                                           Index result_relation, List *range_table);
  29
  30 /*
  31  * prototypes for prepunion.h
  32  */
  33 typedef enum UnionFlag
  34 {
  35         INHERITS_FLAG, UNION_FLAG, VERSION_FLAG
  36 } UnionFlag;
  37
  38 extern List *find_all_inheritors(List *unexamined_relids,
  39                                         List *examined_relids);
  40 extern int      first_matching_rt_entry(List *rangetable, UnionFlag flag);
  41 extern Append *plan_union_queries(Index rt_index, Query *parse,
  42                                    UnionFlag flag);
  43
  44 #endif                                                  /* PREP_H */