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 1.7 1997/11/21 18:12:33 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 *
  23 preprocess_qualification(Expr *qual, List *tlist,
  24                                                  List **existentialQualPtr);
  25 extern List *cnfify(Expr *qual, bool removeAndFlag);
  26
  27 /*
  28  * prototypes for preptlist.h
  29  */
  30 extern List *
  31 preprocess_targetlist(List *tlist, int command_type,
  32                                           Index result_relation, List *range_table);
  33
  34 /*
  35  * prototypes for prepunion.h
  36  */
  37 typedef enum UnionFlag
  38 {
  39         INHERITS_FLAG, VERSION_FLAG
  40 } UnionFlag;
  41
  42 extern List *
  43 find_all_inheritors(List *unexamined_relids,
  44                                         List *examined_relids);
  45 extern int      first_matching_rt_entry(List *rangetable, UnionFlag flag);
  46 extern Append *
  47 plan_union_queries(Index rt_index, Query *parse,
  48                                    UnionFlag flag);
  49
  50 #endif                                                  /* PREP_H */