X-Git-Url: https://granicus.if.org/sourcecode?a=blobdiff_plain;f=src%2Finclude%2Foptimizer%2Fplanmain.h;h=0b46a173706bfacae48a97bf683b38882c0451c8;hb=db147b348345288c7b47f9527fc107a9bb063ad7;hp=e76ba2014499c2c894e2eb9a36f4676feee6e233;hpb=20ad43b576d9360b0e9ce9bd868c989443cf9d36;p=postgresql diff --git a/src/include/optimizer/planmain.h b/src/include/optimizer/planmain.h index e76ba20144..0b46a17370 100644 --- a/src/include/optimizer/planmain.h +++ b/src/include/optimizer/planmain.h @@ -4,10 +4,10 @@ * prototypes for various files in optimizer/plan * * - * Portions Copyright (c) 1996-2000, PostgreSQL, Inc + * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: planmain.h,v 1.41 2000/06/08 22:37:51 momjian Exp $ + * $PostgreSQL: pgsql/src/include/optimizer/planmain.h,v 1.108 2008/05/02 21:26:10 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -17,44 +17,94 @@ #include "nodes/plannodes.h" #include "nodes/relation.h" +/* GUC parameters */ +#define DEFAULT_CURSOR_TUPLE_FRACTION 0.1 +extern double cursor_tuple_fraction; + /* * prototypes for plan/planmain.c */ -extern Plan *query_planner(Query *root, List *tlist, List *qual, - double tuple_fraction); +extern void query_planner(PlannerInfo *root, List *tlist, + double tuple_fraction, double limit_tuples, + Path **cheapest_path, Path **sorted_path, + double *num_groups); /* - * prototypes for plan/createplan.c + * prototypes for plan/planagg.c */ -extern Plan *create_plan(Query *root, Path *best_path); -extern Sort *make_sort(List *tlist, Oid nonameid, Plan *lefttree, - int keycount); -extern Agg *make_agg(List *tlist, List *qual, Plan *lefttree); -extern Group *make_group(List *tlist, bool tuplePerGroup, int ngrp, - AttrNumber *grpColIdx, Plan *lefttree); -extern Noname *make_noname(List *tlist, List *pathkeys, Plan *subplan); -extern Unique *make_unique(List *tlist, Plan *lefttree, List *distinctList); -extern Result *make_result(List *tlist, Node *resconstantqual, Plan *subplan); +extern Plan *optimize_minmax_aggregates(PlannerInfo *root, List *tlist, + Path *best_path); /* - * prototypes for plan/initsplan.c + * prototypes for plan/createplan.c */ -extern void make_var_only_tlist(Query *root, List *tlist); -extern void add_restrict_and_join_to_rels(Query *root, List *clauses); -extern void add_missing_rels_to_query(Query *root); +extern Plan *create_plan(PlannerInfo *root, Path *best_path); +extern SubqueryScan *make_subqueryscan(List *qptlist, List *qpqual, + Index scanrelid, Plan *subplan, List *subrtable); +extern Append *make_append(List *appendplans, bool isTarget, List *tlist); +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, + int numGroupCols, AttrNumber *grpColIdx, Oid *grpOperators, + long numGroups, int numAggs, + 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 Limit *make_limit(Plan *lefttree, Node *limitOffset, Node *limitCount, + int64 offset_est, int64 count_est); +extern SetOp *make_setop(SetOpCmd cmd, Plan *lefttree, + List *distinctList, AttrNumber flagColIdx); +extern Result *make_result(PlannerInfo *root, List *tlist, + Node *resconstantqual, Plan *subplan); +extern bool is_projection_capable_plan(Plan *plan); /* - * prototypes for plan/setrefs.c + * prototypes for plan/initsplan.c */ -extern void set_plan_references(Plan *plan); -extern List *join_references(List *clauses, List *outer_tlist, - List *inner_tlist, Index acceptable_rel); -extern void fix_opids(Node *node); +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_IN_vars_to_tlists(PlannerInfo *root); +extern void add_vars_to_targetlist(PlannerInfo *root, List *vars, + Relids where_needed); +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, + Expr *item1, + Expr *item2, + Relids qualscope, + bool below_outer_join, + bool both_const); +extern RestrictInfo *build_implied_join_equality(Oid opno, + Expr *item1, + Expr *item2, + Relids qualscope); /* - * prep/prepkeyset.c + * prototypes for plan/setrefs.c */ -extern bool _use_keyset_query_optimizer; -extern void transformKeySetQuery(Query *origNode); +extern Plan *set_plan_references(PlannerGlobal *glob, + Plan *plan, + List *rtable); +extern List *set_returning_clause_references(PlannerGlobal *glob, + List *rlist, + Plan *topplan, + Index resultRelation); +extern void fix_opfuncids(Node *node); +extern void set_opfuncid(OpExpr *opexpr); +extern void set_sa_opfuncid(ScalarArrayOpExpr *opexpr); -#endif /* PLANMAIN_H */ +#endif /* PLANMAIN_H */