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

   1 /*-------------------------------------------------------------------------
   2  *
   3  * prep.h
   4  *        prototypes for files in optimizer/prep/
   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: pgsql/src/include/optimizer/prep.h,v 1.59 2008/01/01 19:45:58 momjian Exp $
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14 #ifndef PREP_H
  15 #define PREP_H
  16
  17 #include "nodes/plannodes.h"
  18 #include "nodes/relation.h"
  19
  20
  21 /*
  22  * prototypes for prepjointree.c
  23  */
  24 extern Node *pull_up_IN_clauses(PlannerInfo *root, Node *node);
  25 extern Node *pull_up_subqueries(PlannerInfo *root, Node *jtnode,
  26                                    bool below_outer_join, bool append_rel_member);
  27 extern void reduce_outer_joins(PlannerInfo *root);
  28 extern Relids get_relids_in_jointree(Node *jtnode);
  29 extern Relids get_relids_for_join(PlannerInfo *root, int joinrelid);
  30
  31 /*
  32  * prototypes for prepqual.c
  33  */
  34 extern Expr *canonicalize_qual(Expr *qual);
  35
  36 /*
  37  * prototypes for preptlist.c
  38  */
  39 extern List *preprocess_targetlist(PlannerInfo *root, List *tlist);
  40
  41 /*
  42  * prototypes for prepunion.c
  43  */
  44 extern Plan *plan_set_operations(PlannerInfo *root, double tuple_fraction,
  45                                         List **sortClauses);
  46
  47 extern List *find_all_inheritors(Oid parentrel);
  48
  49 extern void expand_inherited_tables(PlannerInfo *root);
  50
  51 extern Node *adjust_appendrel_attrs(Node *node, AppendRelInfo *appinfo);
  52
  53 extern Relids *adjust_appendrel_attr_needed(RelOptInfo *oldrel,
  54                                                          AppendRelInfo *appinfo,
  55                                                          AttrNumber new_min_attr,
  56                                                          AttrNumber new_max_attr);
  57
  58 #endif   /* PREP_H */