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

   1 /*-------------------------------------------------------------------------
   2  *
   3  * planmain.h
   4  *        prototypes for various files in optimizer/plan
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * $Id: planmain.h,v 1.70 2003/05/06 00:20:33 tgl Exp $
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14 #ifndef PLANMAIN_H
  15 #define PLANMAIN_H
  16
  17 #include "nodes/plannodes.h"
  18 #include "nodes/relation.h"
  19
  20 /*
  21  * prototypes for plan/planmain.c
  22  */
  23 extern void query_planner(Query *root, List *tlist, double tuple_fraction,
  24                                                   Path **cheapest_path, Path **sorted_path);
  25
  26 /*
  27  * prototypes for plan/createplan.c
  28  */
  29 extern Plan *create_plan(Query *root, Path *best_path);
  30 extern SubqueryScan *make_subqueryscan(List *qptlist, List *qpqual,
  31                                   Index scanrelid, Plan *subplan);
  32 extern Append *make_append(List *appendplans, bool isTarget, List *tlist);
  33 extern Sort *make_sort_from_sortclauses(Query *root, List *tlist,
  34                                                                                 Plan *lefttree, List *sortcls);
  35 extern Sort *make_sort_from_groupcols(Query *root, List *groupcls,
  36                                                                           AttrNumber *grpColIdx, Plan *lefttree);
  37 extern Agg *make_agg(Query *root, List *tlist, List *qual,
  38                                          AggStrategy aggstrategy,
  39                                          int numGroupCols, AttrNumber *grpColIdx,
  40                                          long numGroups, int numAggs,
  41                                          Plan *lefttree);
  42 extern Group *make_group(Query *root, List *tlist,
  43                                                  int numGroupCols, AttrNumber *grpColIdx,
  44                                                  double numGroups,
  45                                                  Plan *lefttree);
  46 extern Material *make_material(List *tlist, Plan *lefttree);
  47 extern Plan *materialize_finished_plan(Plan *subplan);
  48 extern Unique *make_unique(List *tlist, Plan *lefttree, List *distinctList);
  49 extern Limit *make_limit(List *tlist, Plan *lefttree,
  50                    Node *limitOffset, Node *limitCount);
  51 extern SetOp *make_setop(SetOpCmd cmd, List *tlist, Plan *lefttree,
  52                    List *distinctList, AttrNumber flagColIdx);
  53 extern Result *make_result(List *tlist, Node *resconstantqual, Plan *subplan);
  54
  55 /*
  56  * prototypes for plan/initsplan.c
  57  */
  58 extern void add_base_rels_to_query(Query *root, Node *jtnode);
  59 extern void build_base_rel_tlists(Query *root, List *tlist);
  60 extern Relids distribute_quals_to_rels(Query *root, Node *jtnode);
  61 extern void process_implied_equality(Query *root,
  62                                                                          Node *item1, Node *item2,
  63                                                                          Oid sortop1, Oid sortop2,
  64                                                                          Relids item1_relids, Relids item2_relids,
  65                                                                          bool delete_it);
  66
  67 /*
  68  * prototypes for plan/setrefs.c
  69  */
  70 extern void set_plan_references(Plan *plan, List *rtable);
  71 extern void fix_opfuncids(Node *node);
  72
  73 #endif   /* PLANMAIN_H */