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Add a back-link from IndexOptInfo structs to their parent RelOptInfo

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structs.  There are many places in the planner where we were passing
both a rel and an index to subroutines, and now need only pass the
index struct.  Notationally simpler, and perhaps a tad faster.
This commit is contained in:
Tom Lane
2005-03-27 06:29:49 +00:00
parent febc9a613c
commit 926e8a00d3
11 changed files with 95 additions and 141 deletions
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8
src/include/optimizer/cost.h
View File

@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.62 2004/12/31 22:03:36 pgsql Exp $
* $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.63 2005/03/27 06:29:49 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -50,10 +50,8 @@ extern bool enable_mergejoin;
extern bool enable_hashjoin;
extern double clamp_row_est(double nrows);
extern void cost_seqscan(Path *path, Query *root,
RelOptInfo *baserel);
extern void cost_index(Path *path, Query *root,
RelOptInfo *baserel, IndexOptInfo *index,
extern void cost_seqscan(Path *path, Query *root, RelOptInfo *baserel);
extern void cost_index(Path *path, Query *root, IndexOptInfo *index,
List *indexQuals, bool is_injoin);
extern void cost_tidscan(Path *path, Query *root,
RelOptInfo *baserel, List *tideval);

4
src/include/optimizer/pathnode.h
View File

@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/pathnode.h,v 1.56 2004/12/31 22:03:36 pgsql Exp $
* $PostgreSQL: pgsql/src/include/optimizer/pathnode.h,v 1.57 2005/03/27 06:29:49 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -28,7 +28,7 @@ extern void set_cheapest(RelOptInfo *parent_rel);
extern void add_path(RelOptInfo *parent_rel, Path *new_path);
extern Path *create_seqscan_path(Query *root, RelOptInfo *rel);
extern IndexPath *create_index_path(Query *root, RelOptInfo *rel,
extern IndexPath *create_index_path(Query *root,
IndexOptInfo *index,
List *restriction_clauses,
List *pathkeys,

11
src/include/optimizer/paths.h
View File

@@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/paths.h,v 1.79 2005/03/26 23:29:20 tgl Exp $
* $PostgreSQL: pgsql/src/include/optimizer/paths.h,v 1.80 2005/03/27 06:29:49 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -38,11 +38,9 @@ extern void debug_print_rel(Query *root, RelOptInfo *rel);
extern void create_index_paths(Query *root, RelOptInfo *rel);
extern Path *best_inner_indexscan(Query *root, RelOptInfo *rel,
Relids outer_relids, JoinType jointype);
extern List *group_clauses_by_indexkey_for_or(RelOptInfo *rel,
IndexOptInfo *index,
extern List *group_clauses_by_indexkey_for_or(IndexOptInfo *index,
Expr *orsubclause);
extern List *expand_indexqual_conditions(RelOptInfo *rel,
IndexOptInfo *index,
extern List *expand_indexqual_conditions(IndexOptInfo *index,
List *clausegroups);
extern void check_partial_indexes(Query *root, RelOptInfo *rel);
extern bool pred_test(List *predicate_list, List *restrictinfo_list);
@@ -108,8 +106,7 @@ extern Path *get_cheapest_path_for_pathkeys(List *paths, List *pathkeys,
extern Path *get_cheapest_fractional_path_for_pathkeys(List *paths,
List *pathkeys,
double fraction);
extern List *build_index_pathkeys(Query *root, RelOptInfo *rel,
IndexOptInfo *index,
extern List *build_index_pathkeys(Query *root, IndexOptInfo *index,
ScanDirection scandir);
extern List *build_subquery_pathkeys(Query *root, RelOptInfo *rel,
Query *subquery);