1 /*-------------------------------------------------------------------------
4 * prototypes for various files in optimizer/plan
7 * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
8 * Portions Copyright (c) 1994, Regents of the University of California
10 * $PostgreSQL: pgsql/src/include/optimizer/planmain.h,v 1.116 2008/12/31 00:08:38 tgl Exp $
12 *-------------------------------------------------------------------------
17 #include "nodes/plannodes.h"
18 #include "nodes/relation.h"
21 #define DEFAULT_CURSOR_TUPLE_FRACTION 0.1
22 extern double cursor_tuple_fraction;
25 * prototypes for plan/planmain.c
27 extern void query_planner(PlannerInfo *root, List *tlist,
28 double tuple_fraction, double limit_tuples,
29 Path **cheapest_path, Path **sorted_path,
33 * prototypes for plan/planagg.c
35 extern Plan *optimize_minmax_aggregates(PlannerInfo *root, List *tlist,
39 * prototypes for plan/createplan.c
41 extern Plan *create_plan(PlannerInfo *root, Path *best_path);
42 extern SubqueryScan *make_subqueryscan(List *qptlist, List *qpqual,
43 Index scanrelid, Plan *subplan, List *subrtable);
44 extern Append *make_append(List *appendplans, bool isTarget, List *tlist);
45 extern RecursiveUnion *make_recursive_union(List *tlist,
46 Plan *lefttree, Plan *righttree, int wtParam,
47 List *distinctList, long numGroups);
48 extern Sort *make_sort_from_pathkeys(PlannerInfo *root, Plan *lefttree,
49 List *pathkeys, double limit_tuples);
50 extern Sort *make_sort_from_sortclauses(PlannerInfo *root, List *sortcls,
52 extern Sort *make_sort_from_groupcols(PlannerInfo *root, List *groupcls,
53 AttrNumber *grpColIdx, Plan *lefttree);
54 extern Agg *make_agg(PlannerInfo *root, List *tlist, List *qual,
55 AggStrategy aggstrategy,
56 int numGroupCols, AttrNumber *grpColIdx, Oid *grpOperators,
57 long numGroups, int numAggs,
59 extern WindowAgg *make_windowagg(PlannerInfo *root, List *tlist,
60 int numWindowFuncs, Index winref,
61 int partNumCols, AttrNumber *partColIdx, Oid *partOperators,
62 int ordNumCols, AttrNumber *ordColIdx, Oid *ordOperators,
63 int frameOptions, Plan *lefttree);
64 extern Group *make_group(PlannerInfo *root, List *tlist, List *qual,
65 int numGroupCols, AttrNumber *grpColIdx, Oid *grpOperators,
68 extern Plan *materialize_finished_plan(Plan *subplan);
69 extern Unique *make_unique(Plan *lefttree, List *distinctList);
70 extern Limit *make_limit(Plan *lefttree, Node *limitOffset, Node *limitCount,
71 int64 offset_est, int64 count_est);
72 extern SetOp *make_setop(SetOpCmd cmd, SetOpStrategy strategy, Plan *lefttree,
73 List *distinctList, AttrNumber flagColIdx, int firstFlag,
74 long numGroups, double outputRows);
75 extern Result *make_result(PlannerInfo *root, List *tlist,
76 Node *resconstantqual, Plan *subplan);
77 extern bool is_projection_capable_plan(Plan *plan);
80 * prototypes for plan/initsplan.c
82 extern int from_collapse_limit;
83 extern int join_collapse_limit;
85 extern void add_base_rels_to_query(PlannerInfo *root, Node *jtnode);
86 extern void build_base_rel_tlists(PlannerInfo *root, List *final_tlist);
87 extern void add_vars_to_targetlist(PlannerInfo *root, List *vars,
89 extern List *deconstruct_jointree(PlannerInfo *root);
90 extern void distribute_restrictinfo_to_rels(PlannerInfo *root,
91 RestrictInfo *restrictinfo);
92 extern void process_implied_equality(PlannerInfo *root,
97 bool below_outer_join,
99 extern RestrictInfo *build_implied_join_equality(Oid opno,
105 * prototypes for plan/setrefs.c
107 extern Plan *set_plan_references(PlannerGlobal *glob,
110 extern List *set_returning_clause_references(PlannerGlobal *glob,
113 Index resultRelation);
114 extern void fix_opfuncids(Node *node);
115 extern void set_opfuncid(OpExpr *opexpr);
116 extern void set_sa_opfuncid(ScalarArrayOpExpr *opexpr);
117 extern void record_plan_function_dependency(PlannerGlobal *glob, Oid funcid);
118 extern void extract_query_dependencies(List *queries,
122 #endif /* PLANMAIN_H */