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

   1 /*-------------------------------------------------------------------------
   2  *
   3  * planner.h
   4  *        prototypes for planner.c.
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * src/include/optimizer/planner.h
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14 #ifndef PLANNER_H
  15 #define PLANNER_H
  16
  17 #include "nodes/plannodes.h"
  18 #include "nodes/relation.h"
  19
  20
  21 /* Hook for plugins to get control in planner() */
  22 typedef PlannedStmt *(*planner_hook_type) (Query *parse,
  23                                                                                                            int cursorOptions,
  24                                                                                                   ParamListInfo boundParams);
  25 extern PGDLLIMPORT planner_hook_type planner_hook;
  26
  27
  28 extern PlannedStmt *planner(Query *parse, int cursorOptions,
  29                 ParamListInfo boundParams);
  30 extern PlannedStmt *standard_planner(Query *parse, int cursorOptions,
  31                                  ParamListInfo boundParams);
  32
  33 extern Plan *subquery_planner(PlannerGlobal *glob, Query *parse,
  34                                  PlannerInfo *parent_root,
  35                                  bool hasRecursion, double tuple_fraction,
  36                                  PlannerInfo **subroot);
  37
  38 extern void add_tlist_costs_to_plan(PlannerInfo *root, Plan *plan,
  39                                                                         List *tlist);
  40
  41 extern bool is_dummy_plan(Plan *plan);
  42
  43 extern Expr *expression_planner(Expr *expr);
  44
  45 extern Expr *preprocess_phv_expression(PlannerInfo *root, Expr *expr);
  46
  47 extern bool plan_cluster_use_sort(Oid tableOid, Oid indexOid);
  48
  49 #endif   /* PLANNER_H */