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) 1996-2006, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * $PostgreSQL: pgsql/src/include/optimizer/planmain.h,v 1.92 2006/03/05 15:58:57 momjian 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(PlannerInfo *root, List *tlist,
  24                           double tuple_fraction,
  25                           Path **cheapest_path, Path **sorted_path,
  26                           double *num_groups);
  27
  28 /*
  29  * prototypes for plan/planagg.c
  30  */
  31 extern Plan *optimize_minmax_aggregates(PlannerInfo *root, List *tlist,
  32                                                    Path *best_path);
  33
  34 /*
  35  * prototypes for plan/createplan.c
  36  */
  37 extern Plan *create_plan(PlannerInfo *root, Path *best_path);
  38 extern SubqueryScan *make_subqueryscan(List *qptlist, List *qpqual,
  39                                   Index scanrelid, Plan *subplan);
  40 extern Append *make_append(List *appendplans, bool isTarget, List *tlist);
  41 extern Sort *make_sort_from_sortclauses(PlannerInfo *root, List *sortcls,
  42                                                    Plan *lefttree);
  43 extern Sort *make_sort_from_groupcols(PlannerInfo *root, List *groupcls,
  44                                                  AttrNumber *grpColIdx, Plan *lefttree);
  45 extern List *order_qual_clauses(PlannerInfo *root, List *clauses);
  46 extern Agg *make_agg(PlannerInfo *root, List *tlist, List *qual,
  47                  AggStrategy aggstrategy,
  48                  int numGroupCols, AttrNumber *grpColIdx,
  49                  long numGroups, int numAggs,
  50                  Plan *lefttree);
  51 extern Group *make_group(PlannerInfo *root, List *tlist, List *qual,
  52                    int numGroupCols, AttrNumber *grpColIdx,
  53                    double numGroups,
  54                    Plan *lefttree);
  55 extern Material *make_material(Plan *lefttree);
  56 extern Plan *materialize_finished_plan(Plan *subplan);
  57 extern Unique *make_unique(Plan *lefttree, List *distinctList);
  58 extern Limit *make_limit(Plan *lefttree, Node *limitOffset, Node *limitCount,
  59                    int offset_est, int count_est);
  60 extern SetOp *make_setop(SetOpCmd cmd, Plan *lefttree,
  61                    List *distinctList, AttrNumber flagColIdx);
  62 extern Result *make_result(List *tlist, Node *resconstantqual, Plan *subplan);
  63 extern bool is_projection_capable_plan(Plan *plan);
  64
  65 /*
  66  * prototypes for plan/initsplan.c
  67  */
  68 extern int      from_collapse_limit;
  69 extern int      join_collapse_limit;
  70
  71 extern void add_base_rels_to_query(PlannerInfo *root, Node *jtnode);
  72 extern void build_base_rel_tlists(PlannerInfo *root, List *final_tlist);
  73 extern List *deconstruct_jointree(PlannerInfo *root);
  74 extern void process_implied_equality(PlannerInfo *root,
  75                                                  Node *item1, Node *item2,
  76                                                  Oid sortop1, Oid sortop2,
  77                                                  Relids item1_relids, Relids item2_relids,
  78                                                  bool delete_it);
  79
  80 /*
  81  * prototypes for plan/setrefs.c
  82  */
  83 extern Plan *set_plan_references(Plan *plan, List *rtable);
  84 extern void fix_opfuncids(Node *node);
  85 extern void set_opfuncid(OpExpr *opexpr);
  86
  87 #endif   /* PLANMAIN_H */