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/*------------------------------------------------------------------------- * * planmain.h * prototypes for various files in optimizer/plan * * * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/optimizer/planmain.h * *------------------------------------------------------------------------- */ #ifndef PLANMAIN_H #define PLANMAIN_H #include "nodes/plannodes.h" #include "nodes/relation.h" /* GUC parameters */ #define DEFAULT_CURSOR_TUPLE_FRACTION 0.1 extern double cursor_tuple_fraction; /* query_planner callback to compute query_pathkeys */ typedef void (*query_pathkeys_callback) (PlannerInfo *root, void *extra); /* * prototypes for plan/planmain.c */ extern void query_planner(PlannerInfo *root, List *tlist, double tuple_fraction, double limit_tuples, query_pathkeys_callback qp_callback, void *qp_extra, Path **cheapest_path, Path **sorted_path, double *num_groups); /* * prototypes for plan/planagg.c */ extern void preprocess_minmax_aggregates(PlannerInfo *root, List *tlist); extern Plan *optimize_minmax_aggregates(PlannerInfo *root, List *tlist, const AggClauseCosts *aggcosts, Path *best_path); /* * prototypes for plan/createplan.c */ extern Plan *create_plan(PlannerInfo *root, Path *best_path); extern SubqueryScan *make_subqueryscan(List *qptlist, List *qpqual, Index scanrelid, Plan *subplan); extern ForeignScan *make_foreignscan(List *qptlist, List *qpqual, Index scanrelid, List *fdw_exprs, List *fdw_private); extern Append *make_append(List *appendplans, List *tlist); extern RecursiveUnion *make_recursive_union(List *tlist, Plan *lefttree, Plan *righttree, int wtParam, List *distinctList, long numGroups); extern Sort *make_sort_from_pathkeys(PlannerInfo *root, Plan *lefttree, List *pathkeys, double limit_tuples); extern Sort *make_sort_from_sortclauses(PlannerInfo *root, List *sortcls, Plan *lefttree); extern Sort *make_sort_from_groupcols(PlannerInfo *root, List *groupcls, AttrNumber *grpColIdx, Plan *lefttree); extern Agg *make_agg(PlannerInfo *root, List *tlist, List *qual, AggStrategy aggstrategy, const AggClauseCosts *aggcosts, int numGroupCols, AttrNumber *grpColIdx, Oid *grpOperators, long numGroups, Plan *lefttree); extern WindowAgg *make_windowagg(PlannerInfo *root, List *tlist, List *windowFuncs, Index winref, int partNumCols, AttrNumber *partColIdx, Oid *partOperators, int ordNumCols, AttrNumber *ordColIdx, Oid *ordOperators, int frameOptions, Node *startOffset, Node *endOffset, Plan *lefttree); extern Group *make_group(PlannerInfo *root, List *tlist, List *qual, int numGroupCols, AttrNumber *grpColIdx, Oid *grpOperators, double numGroups, Plan *lefttree); extern Plan *materialize_finished_plan(Plan *subplan); extern Unique *make_unique(Plan *lefttree, List *distinctList); extern LockRows *make_lockrows(Plan *lefttree, List *rowMarks, int epqParam); extern Limit *make_limit(Plan *lefttree, Node *limitOffset, Node *limitCount, int64 offset_est, int64 count_est); extern SetOp *make_setop(SetOpCmd cmd, SetOpStrategy strategy, Plan *lefttree, List *distinctList, AttrNumber flagColIdx, int firstFlag, long numGroups, double outputRows); extern Result *make_result(PlannerInfo *root, List *tlist, Node *resconstantqual, Plan *subplan); extern ModifyTable *make_modifytable(CmdType operation, bool canSetTag, List *resultRelations, List *subplans, List *returningLists, List *rowMarks, int epqParam); extern bool is_projection_capable_plan(Plan *plan); /* * prototypes for plan/initsplan.c */ extern int from_collapse_limit; extern int join_collapse_limit; extern void add_base_rels_to_query(PlannerInfo *root, Node *jtnode); extern void build_base_rel_tlists(PlannerInfo *root, List *final_tlist); extern void add_vars_to_targetlist(PlannerInfo *root, List *vars, Relids where_needed, bool create_new_ph); extern List *deconstruct_jointree(PlannerInfo *root); extern void distribute_restrictinfo_to_rels(PlannerInfo *root, RestrictInfo *restrictinfo); extern void process_implied_equality(PlannerInfo *root, Oid opno, Oid collation, Expr *item1, Expr *item2, Relids qualscope, Relids nullable_relids, bool below_outer_join, bool both_const); extern RestrictInfo *build_implied_join_equality(Oid opno, Oid collation, Expr *item1, Expr *item2, Relids qualscope, Relids nullable_relids); /* * prototypes for plan/analyzejoins.c */ extern List *remove_useless_joins(PlannerInfo *root, List *joinlist); /* * prototypes for plan/setrefs.c */ extern Plan *set_plan_references(PlannerInfo *root, Plan *plan); extern void fix_opfuncids(Node *node); extern void set_opfuncid(OpExpr *opexpr); extern void set_sa_opfuncid(ScalarArrayOpExpr *opexpr); extern void record_plan_function_dependency(PlannerInfo *root, Oid funcid); extern void extract_query_dependencies(Node *query, List **relationOids, List **invalItems); #endif /* PLANMAIN_H */