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Diffstat (limited to 'src/include/optimizer/planmain.h')
| -rw-r--r-- | src/include/optimizer/planmain.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/include/optimizer/planmain.h b/src/include/optimizer/planmain.h new file mode 100644 index 0000000..8ce60e2 --- /dev/null +++ b/src/include/optimizer/planmain.h @@ -0,0 +1,119 @@ +/*------------------------------------------------------------------------- + * + * planmain.h + * prototypes for various files in optimizer/plan + * + * + * Portions Copyright (c) 1996-2020, 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/pathnodes.h" +#include "nodes/plannodes.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 RelOptInfo *query_planner(PlannerInfo *root, + query_pathkeys_callback qp_callback, void *qp_extra); + +/* + * prototypes for plan/planagg.c + */ +extern void preprocess_minmax_aggregates(PlannerInfo *root); + +/* + * prototypes for plan/createplan.c + */ +extern Plan *create_plan(PlannerInfo *root, Path *best_path); +extern ForeignScan *make_foreignscan(List *qptlist, List *qpqual, + Index scanrelid, List *fdw_exprs, List *fdw_private, + List *fdw_scan_tlist, List *fdw_recheck_quals, + Plan *outer_plan); +extern Plan *change_plan_targetlist(Plan *subplan, List *tlist, + bool tlist_parallel_safe); +extern Plan *materialize_finished_plan(Plan *subplan); +extern bool is_projection_capable_path(Path *path); +extern bool is_projection_capable_plan(Plan *plan); + +/* External use of these functions is deprecated: */ +extern Sort *make_sort_from_sortclauses(List *sortcls, Plan *lefttree); +extern Agg *make_agg(List *tlist, List *qual, + AggStrategy aggstrategy, AggSplit aggsplit, + int numGroupCols, AttrNumber *grpColIdx, Oid *grpOperators, Oid *grpCollations, + List *groupingSets, List *chain, double dNumGroups, + Size transitionSpace, Plan *lefttree); +extern Limit *make_limit(Plan *lefttree, Node *limitOffset, Node *limitCount, + LimitOption limitOption, int uniqNumCols, + AttrNumber *uniqColIdx, Oid *uniqOperators, + Oid *uniqCollations); + +/* + * 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 add_other_rels_to_query(PlannerInfo *root); +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 void find_lateral_references(PlannerInfo *root); +extern void create_lateral_join_info(PlannerInfo *root); +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, + Index security_level, + bool below_outer_join, + bool both_const); +extern RestrictInfo *build_implied_join_equality(PlannerInfo *root, + Oid opno, + Oid collation, + Expr *item1, + Expr *item2, + Relids qualscope, + Relids nullable_relids, + Index security_level); +extern void match_foreign_keys_to_quals(PlannerInfo *root); + +/* + * prototypes for plan/analyzejoins.c + */ +extern List *remove_useless_joins(PlannerInfo *root, List *joinlist); +extern void reduce_unique_semijoins(PlannerInfo *root); +extern bool query_supports_distinctness(Query *query); +extern bool query_is_distinct_for(Query *query, List *colnos, List *opids); +extern bool innerrel_is_unique(PlannerInfo *root, + Relids joinrelids, Relids outerrelids, RelOptInfo *innerrel, + JoinType jointype, List *restrictlist, bool force_cache); + +/* + * prototypes for plan/setrefs.c + */ +extern Plan *set_plan_references(PlannerInfo *root, Plan *plan); +extern void record_plan_function_dependency(PlannerInfo *root, Oid funcid); +extern void record_plan_type_dependency(PlannerInfo *root, Oid typid); +extern bool extract_query_dependencies_walker(Node *node, PlannerInfo *root); + +#endif /* PLANMAIN_H */ |