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First cut at full support for OUTER JOINs. There are still a few loose

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ends to clean up (see my message of same date to pghackers), but mostly
it works.  INITDB REQUIRED!
This commit is contained in:
Tom Lane
2000-09-12 21:07:18 +00:00
parent b5c0ab278b
commit ed5003c584
93 changed files with 6386 additions and 4262 deletions
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28
src/include/optimizer/paths.h
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@@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: paths.h,v 1.46 2000/07/24 03:10:54 tgl Exp $
* $Id: paths.h,v 1.47 2000/09/12 21:07:11 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -61,21 +61,23 @@ extern void create_tidscan_paths(Query *root, RelOptInfo *rel);
* routines to create join paths
*/
extern void add_paths_to_joinrel(Query *root, RelOptInfo *joinrel,
RelOptInfo *outerrel,
RelOptInfo *innerrel,
List *restrictlist);
RelOptInfo *outerrel,
RelOptInfo *innerrel,
JoinType jointype,
List *restrictlist);
/*
* joinrels.c
* routines to determine which relations to join
*/
extern void make_rels_by_joins(Query *root, int level);
extern RelOptInfo *make_rels_by_clause_joins(Query *root,
RelOptInfo *old_rel,
List *other_rels);
extern RelOptInfo *make_rels_by_clauseless_joins(Query *root,
RelOptInfo *old_rel,
List *other_rels);
extern List *make_rels_by_joins(Query *root, int level, List **joinrels);
extern List *make_rels_by_clause_joins(Query *root,
RelOptInfo *old_rel,
List *other_rels);
extern List *make_rels_by_clauseless_joins(Query *root,
RelOptInfo *old_rel,
List *other_rels);
extern RelOptInfo *make_rel_from_jointree(Query *root, Node *jtnode);
/*
* pathkeys.c
@@ -110,7 +112,7 @@ extern List *make_pathkeys_for_sortclauses(List *sortclauses,
extern List *find_mergeclauses_for_pathkeys(List *pathkeys,
List *restrictinfos);
extern List *make_pathkeys_for_mergeclauses(Query *root,
List *mergeclauses,
List *tlist);
List *mergeclauses,
RelOptInfo *rel);
#endif /* PATHS_H */