mirror of
https://github.com/postgres/postgres.git
synced 2025-07-18 17:42:25 +03:00
f0661c4e8c
In addition, this path fills in a number of missing bits and pieces in the parallel infrastructure. Paths and plans now have a parallel_aware flag indicating whether whatever parallel-aware logic they have should be engaged. It is believed that we will need this flag for a number of path/plan types, not just sequential scans, which is why the flag is generic rather than part of the SeqScan structures specifically. Also, execParallel.c now gives parallel nodes a chance to initialize their PlanState nodes from the DSM during parallel worker startup. Amit Kapila, with a fair amount of adjustment by me. Review of previous patch versions by Haribabu Kommi and others.
169 lines
6.0 KiB
C
169 lines
6.0 KiB
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* pathnode.h
|
|
* prototypes for pathnode.c, relnode.c.
|
|
*
|
|
*
|
|
* Portions Copyright (c) 1996-2015, 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, int nworkers);
|
|
extern Path *create_samplescan_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, Relids required_outer);
|
|
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 GatherPath *create_gather_path(PlannerInfo *root,
|
|
RelOptInfo *rel, Path *subpath, Relids required_outer,
|
|
int nworkers);
|
|
extern Path *create_subqueryscan_path(PlannerInfo *root, RelOptInfo *rel,
|
|
List *pathkeys, Relids required_outer);
|
|
extern Path *create_functionscan_path(PlannerInfo *root, RelOptInfo *rel,
|
|
List *pathkeys, Relids required_outer);
|
|
extern Path *create_valuesscan_path(PlannerInfo *root, RelOptInfo *rel,
|
|
Relids required_outer);
|
|
extern Path *create_ctescan_path(PlannerInfo *root, RelOptInfo *rel,
|
|
Relids required_outer);
|
|
extern Path *create_worktablescan_path(PlannerInfo *root, RelOptInfo *rel,
|
|
Relids required_outer);
|
|
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 RelOptInfo *build_empty_join_rel(PlannerInfo *root);
|
|
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 */
|