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/*------------------------------------------------------------------------- * * pathnode.h * prototypes for pathnode.c, relnode.c. * * * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/optimizer/pathnode.h * *------------------------------------------------------------------------- */ #ifndef PATHNODE_H #define PATHNODE_H #include "nodes/relation.h" /* * prototypes for pathnode.c */ extern int compare_path_costs(Path *path1, Path *path2, CostSelector criterion); extern int compare_fractional_path_costs(Path *path1, Path *path2, double fraction); extern void set_cheapest(RelOptInfo *parent_rel); extern void add_path(RelOptInfo *parent_rel, Path *new_path); extern bool add_path_precheck(RelOptInfo *parent_rel, Cost startup_cost, Cost total_cost, List *pathkeys, Relids required_outer); extern Path *create_seqscan_path(PlannerInfo *root, RelOptInfo *rel, Relids required_outer); extern IndexPath *create_index_path(PlannerInfo *root, IndexOptInfo *index, List *indexclauses, List *indexclausecols, List *indexorderbys, List *indexorderbycols, List *pathkeys, ScanDirection indexscandir, bool indexonly, Relids required_outer, double loop_count); extern BitmapHeapPath *create_bitmap_heap_path(PlannerInfo *root, RelOptInfo *rel, Path *bitmapqual, Relids required_outer, double loop_count); extern BitmapAndPath *create_bitmap_and_path(PlannerInfo *root, RelOptInfo *rel, List *bitmapquals); extern BitmapOrPath *create_bitmap_or_path(PlannerInfo *root, RelOptInfo *rel, List *bitmapquals); extern TidPath *create_tidscan_path(PlannerInfo *root, RelOptInfo *rel, List *tidquals); extern AppendPath *create_append_path(RelOptInfo *rel, List *subpaths, Relids required_outer); extern MergeAppendPath *create_merge_append_path(PlannerInfo *root, RelOptInfo *rel, List *subpaths, List *pathkeys, Relids required_outer); extern ResultPath *create_result_path(List *quals); extern MaterialPath *create_material_path(RelOptInfo *rel, Path *subpath); extern UniquePath *create_unique_path(PlannerInfo *root, RelOptInfo *rel, Path *subpath, SpecialJoinInfo *sjinfo); extern Path *create_subqueryscan_path(PlannerInfo *root, RelOptInfo *rel, List *pathkeys, Relids required_outer); extern Path *create_functionscan_path(PlannerInfo *root, RelOptInfo *rel); extern Path *create_valuesscan_path(PlannerInfo *root, RelOptInfo *rel); extern Path *create_ctescan_path(PlannerInfo *root, RelOptInfo *rel); extern Path *create_worktablescan_path(PlannerInfo *root, RelOptInfo *rel); extern ForeignPath *create_foreignscan_path(PlannerInfo *root, RelOptInfo *rel, double rows, Cost startup_cost, Cost total_cost, List *pathkeys, Relids required_outer, List *fdw_private); extern Relids calc_nestloop_required_outer(Path *outer_path, Path *inner_path); extern Relids calc_non_nestloop_required_outer(Path *outer_path, Path *inner_path); extern NestPath *create_nestloop_path(PlannerInfo *root, RelOptInfo *joinrel, JoinType jointype, JoinCostWorkspace *workspace, SpecialJoinInfo *sjinfo, SemiAntiJoinFactors *semifactors, Path *outer_path, Path *inner_path, List *restrict_clauses, List *pathkeys, Relids required_outer); extern MergePath *create_mergejoin_path(PlannerInfo *root, RelOptInfo *joinrel, JoinType jointype, JoinCostWorkspace *workspace, SpecialJoinInfo *sjinfo, Path *outer_path, Path *inner_path, List *restrict_clauses, List *pathkeys, Relids required_outer, List *mergeclauses, List *outersortkeys, List *innersortkeys); extern HashPath *create_hashjoin_path(PlannerInfo *root, RelOptInfo *joinrel, JoinType jointype, JoinCostWorkspace *workspace, SpecialJoinInfo *sjinfo, SemiAntiJoinFactors *semifactors, Path *outer_path, Path *inner_path, List *restrict_clauses, Relids required_outer, List *hashclauses); extern Path *reparameterize_path(PlannerInfo *root, Path *path, Relids required_outer, double loop_count); /* * prototypes for relnode.c */ extern void setup_simple_rel_arrays(PlannerInfo *root); extern RelOptInfo *build_simple_rel(PlannerInfo *root, int relid, RelOptKind reloptkind); extern RelOptInfo *find_base_rel(PlannerInfo *root, int relid); extern RelOptInfo *find_join_rel(PlannerInfo *root, Relids relids); extern RelOptInfo *build_join_rel(PlannerInfo *root, Relids joinrelids, RelOptInfo *outer_rel, RelOptInfo *inner_rel, SpecialJoinInfo *sjinfo, List **restrictlist_ptr); extern AppendRelInfo *find_childrel_appendrelinfo(PlannerInfo *root, RelOptInfo *rel); extern RelOptInfo *find_childrel_top_parent(PlannerInfo *root, RelOptInfo *rel); extern Relids find_childrel_parents(PlannerInfo *root, RelOptInfo *rel); extern ParamPathInfo *get_baserel_parampathinfo(PlannerInfo *root, RelOptInfo *baserel, Relids required_outer); extern ParamPathInfo *get_joinrel_parampathinfo(PlannerInfo *root, RelOptInfo *joinrel, Path *outer_path, Path *inner_path, SpecialJoinInfo *sjinfo, Relids required_outer, List **restrict_clauses); extern ParamPathInfo *get_appendrel_parampathinfo(RelOptInfo *appendrel, Relids required_outer); #endif /* PATHNODE_H */