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/*------------------------------------------------------------------------- * * planmain.h * prototypes for various files in optimizer/plan * * * Portions Copyright (c) 1996-2016, 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" /* possible values for force_parallel_mode */ typedef enum { FORCE_PARALLEL_OFF, FORCE_PARALLEL_ON, FORCE_PARALLEL_REGRESS } ForceParallelMode; /* GUC parameters */ #define DEFAULT_CURSOR_TUPLE_FRACTION 0.1 extern double cursor_tuple_fraction; extern int force_parallel_mode; /* 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, List *tlist, query_pathkeys_callback qp_callback, void *qp_extra); /* * prototypes for plan/planagg.c */ extern void preprocess_minmax_aggregates(PlannerInfo *root, List *tlist); /* * 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, List *groupingSets, List *chain, double dNumGroups, Plan *lefttree); extern Limit *make_limit(Plan *lefttree, Node *limitOffset, Node *limitCount); /* * 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 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, 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); extern void match_foreign_keys_to_quals(PlannerInfo *root); /* * prototypes for plan/analyzejoins.c */ extern List *remove_useless_joins(PlannerInfo *root, List *joinlist); extern bool query_supports_distinctness(Query *query); extern bool query_is_distinct_for(Query *query, List *colnos, List *opids); /* * 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 extract_query_dependencies(Node *query, List **relationOids, List **invalItems, bool *hasRowSecurity); #endif /* PLANMAIN_H */