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8ec569479f
Up until now, we've had a policy of only marking certain variables in the PostgreSQL header files with PGDLLIMPORT, but now we've decided to mark them all. This means that extensions running on Windows should no longer operate at a disadvantage as compared to extensions running on Linux: if the variable is present in a header file, it should be accessible. Discussion: http://postgr.es/m/CA+TgmoYanc1_FSfimhgiWSqVyP5KKmh5NP2BWNwDhO8Pg2vGYQ@mail.gmail.com
121 lines
4.4 KiB
C
121 lines
4.4 KiB
C
/*-------------------------------------------------------------------------
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*
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* planmain.h
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* prototypes for various files in optimizer/plan
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*
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*
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* Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/optimizer/planmain.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PLANMAIN_H
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#define PLANMAIN_H
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#include "nodes/pathnodes.h"
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#include "nodes/plannodes.h"
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/* GUC parameters */
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#define DEFAULT_CURSOR_TUPLE_FRACTION 0.1
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extern PGDLLIMPORT double cursor_tuple_fraction;
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/* query_planner callback to compute query_pathkeys */
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typedef void (*query_pathkeys_callback) (PlannerInfo *root, void *extra);
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/*
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* prototypes for plan/planmain.c
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*/
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extern RelOptInfo *query_planner(PlannerInfo *root,
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query_pathkeys_callback qp_callback, void *qp_extra);
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/*
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* prototypes for plan/planagg.c
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*/
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extern void preprocess_minmax_aggregates(PlannerInfo *root);
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/*
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* prototypes for plan/createplan.c
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*/
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extern Plan *create_plan(PlannerInfo *root, Path *best_path);
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extern ForeignScan *make_foreignscan(List *qptlist, List *qpqual,
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Index scanrelid, List *fdw_exprs, List *fdw_private,
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List *fdw_scan_tlist, List *fdw_recheck_quals,
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Plan *outer_plan);
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extern Plan *change_plan_targetlist(Plan *subplan, List *tlist,
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bool tlist_parallel_safe);
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extern Plan *materialize_finished_plan(Plan *subplan);
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extern bool is_projection_capable_path(Path *path);
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extern bool is_projection_capable_plan(Plan *plan);
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/* External use of these functions is deprecated: */
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extern Sort *make_sort_from_sortclauses(List *sortcls, Plan *lefttree);
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extern Agg *make_agg(List *tlist, List *qual,
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AggStrategy aggstrategy, AggSplit aggsplit,
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int numGroupCols, AttrNumber *grpColIdx, Oid *grpOperators, Oid *grpCollations,
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List *groupingSets, List *chain, double dNumGroups,
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Size transitionSpace, Plan *lefttree);
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extern Limit *make_limit(Plan *lefttree, Node *limitOffset, Node *limitCount,
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LimitOption limitOption, int uniqNumCols,
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AttrNumber *uniqColIdx, Oid *uniqOperators,
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Oid *uniqCollations);
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/*
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* prototypes for plan/initsplan.c
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*/
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extern PGDLLIMPORT int from_collapse_limit;
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extern PGDLLIMPORT int join_collapse_limit;
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extern void add_base_rels_to_query(PlannerInfo *root, Node *jtnode);
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extern void add_other_rels_to_query(PlannerInfo *root);
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extern void build_base_rel_tlists(PlannerInfo *root, List *final_tlist);
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extern void add_vars_to_targetlist(PlannerInfo *root, List *vars,
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Relids where_needed, bool create_new_ph);
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extern void find_lateral_references(PlannerInfo *root);
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extern void create_lateral_join_info(PlannerInfo *root);
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extern List *deconstruct_jointree(PlannerInfo *root);
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extern void distribute_restrictinfo_to_rels(PlannerInfo *root,
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RestrictInfo *restrictinfo);
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extern RestrictInfo *process_implied_equality(PlannerInfo *root,
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Oid opno,
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Oid collation,
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Expr *item1,
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Expr *item2,
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Relids qualscope,
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Relids nullable_relids,
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Index security_level,
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bool below_outer_join,
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bool both_const);
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extern RestrictInfo *build_implied_join_equality(PlannerInfo *root,
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Oid opno,
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Oid collation,
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Expr *item1,
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Expr *item2,
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Relids qualscope,
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Relids nullable_relids,
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Index security_level);
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extern void match_foreign_keys_to_quals(PlannerInfo *root);
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/*
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* prototypes for plan/analyzejoins.c
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*/
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extern List *remove_useless_joins(PlannerInfo *root, List *joinlist);
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extern void reduce_unique_semijoins(PlannerInfo *root);
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extern bool query_supports_distinctness(Query *query);
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extern bool query_is_distinct_for(Query *query, List *colnos, List *opids);
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extern bool innerrel_is_unique(PlannerInfo *root,
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Relids joinrelids, Relids outerrelids, RelOptInfo *innerrel,
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JoinType jointype, List *restrictlist, bool force_cache);
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/*
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* prototypes for plan/setrefs.c
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*/
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extern Plan *set_plan_references(PlannerInfo *root, Plan *plan);
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extern bool trivial_subqueryscan(SubqueryScan *plan);
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extern void record_plan_function_dependency(PlannerInfo *root, Oid funcid);
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extern void record_plan_type_dependency(PlannerInfo *root, Oid typid);
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extern bool extract_query_dependencies_walker(Node *node, PlannerInfo *root);
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#endif /* PLANMAIN_H */
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