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First cut at full support for OUTER JOINs. There are still a few loose
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
@@ -7,7 +7,7 @@
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: clauses.h,v 1.38 2000/08/13 02:50:26 tgl Exp $
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* $Id: clauses.h,v 1.39 2000/09/12 21:07:11 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@@ -73,9 +73,11 @@ extern void CommuteClause(Expr *clause);
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extern Node *eval_const_expressions(Node *node);
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extern bool expression_tree_walker(Node *node, bool (*walker) (),
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void *context);
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void *context);
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extern Node *expression_tree_mutator(Node *node, Node *(*mutator) (),
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void *context);
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void *context);
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extern bool query_tree_walker(Query *query, bool (*walker) (),
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void *context);
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#define is_subplan(clause) ((clause) != NULL && \
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IsA(clause, Expr) && \
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@@ -7,7 +7,7 @@
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: pathnode.h,v 1.27 2000/04/12 17:16:42 momjian Exp $
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* $Id: pathnode.h,v 1.28 2000/09/12 21:07:11 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@@ -34,26 +34,29 @@ extern IndexPath *create_index_path(Query *root, RelOptInfo *rel,
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extern TidPath *create_tidscan_path(RelOptInfo *rel, List *tideval);
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extern NestPath *create_nestloop_path(RelOptInfo *joinrel,
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Path *outer_path,
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Path *inner_path,
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List *restrict_clauses,
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List *pathkeys);
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JoinType jointype,
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Path *outer_path,
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Path *inner_path,
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List *restrict_clauses,
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List *pathkeys);
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extern MergePath *create_mergejoin_path(RelOptInfo *joinrel,
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Path *outer_path,
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Path *inner_path,
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List *restrict_clauses,
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List *pathkeys,
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List *mergeclauses,
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List *outersortkeys,
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List *innersortkeys);
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JoinType jointype,
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Path *outer_path,
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Path *inner_path,
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List *restrict_clauses,
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List *pathkeys,
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List *mergeclauses,
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List *outersortkeys,
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List *innersortkeys);
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extern HashPath *create_hashjoin_path(RelOptInfo *joinrel,
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Path *outer_path,
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Path *inner_path,
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List *restrict_clauses,
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List *hashclauses,
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Selectivity innerdisbursion);
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JoinType jointype,
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Path *outer_path,
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Path *inner_path,
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List *restrict_clauses,
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List *hashclauses,
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Selectivity innerdisbursion);
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/*
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* prototypes for relnode.c
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@@ -8,7 +8,7 @@
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: paths.h,v 1.46 2000/07/24 03:10:54 tgl Exp $
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* $Id: paths.h,v 1.47 2000/09/12 21:07:11 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@@ -61,21 +61,23 @@ extern void create_tidscan_paths(Query *root, RelOptInfo *rel);
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* routines to create join paths
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*/
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extern void add_paths_to_joinrel(Query *root, RelOptInfo *joinrel,
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RelOptInfo *outerrel,
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RelOptInfo *innerrel,
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List *restrictlist);
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RelOptInfo *outerrel,
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RelOptInfo *innerrel,
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JoinType jointype,
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List *restrictlist);
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/*
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* joinrels.c
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* routines to determine which relations to join
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*/
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extern void make_rels_by_joins(Query *root, int level);
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extern RelOptInfo *make_rels_by_clause_joins(Query *root,
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RelOptInfo *old_rel,
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List *other_rels);
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extern RelOptInfo *make_rels_by_clauseless_joins(Query *root,
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RelOptInfo *old_rel,
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List *other_rels);
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extern List *make_rels_by_joins(Query *root, int level, List **joinrels);
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extern List *make_rels_by_clause_joins(Query *root,
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RelOptInfo *old_rel,
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List *other_rels);
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extern List *make_rels_by_clauseless_joins(Query *root,
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RelOptInfo *old_rel,
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List *other_rels);
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extern RelOptInfo *make_rel_from_jointree(Query *root, Node *jtnode);
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/*
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* pathkeys.c
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@@ -110,7 +112,7 @@ extern List *make_pathkeys_for_sortclauses(List *sortclauses,
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extern List *find_mergeclauses_for_pathkeys(List *pathkeys,
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List *restrictinfos);
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extern List *make_pathkeys_for_mergeclauses(Query *root,
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List *mergeclauses,
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List *tlist);
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List *mergeclauses,
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RelOptInfo *rel);
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#endif /* PATHS_H */
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@@ -7,7 +7,7 @@
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: planmain.h,v 1.43 2000/07/24 03:10:54 tgl Exp $
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* $Id: planmain.h,v 1.44 2000/09/12 21:07:11 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@@ -20,8 +20,7 @@
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/*
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* prototypes for plan/planmain.c
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*/
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extern Plan *query_planner(Query *root, List *tlist, List *qual,
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double tuple_fraction);
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extern Plan *query_planner(Query *root, List *tlist, double tuple_fraction);
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/*
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* prototypes for plan/createplan.c
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@@ -40,9 +39,10 @@ extern Result *make_result(List *tlist, Node *resconstantqual, Plan *subplan);
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/*
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* prototypes for plan/initsplan.c
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*/
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extern void make_var_only_tlist(Query *root, List *tlist);
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extern void build_base_rel_tlists(Query *root, List *tlist);
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extern Relids add_join_quals_to_rels(Query *root, Node *jtnode);
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extern void add_restrict_and_join_to_rels(Query *root, List *clauses);
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extern void add_missing_rels_to_query(Query *root);
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extern List *add_missing_rels_to_query(Query *root, Node *jtnode);
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extern void process_implied_equality(Query *root, Node *item1, Node *item2,
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Oid sortop1, Oid sortop2);
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@@ -58,6 +58,7 @@ extern void fix_opids(Node *node);
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* prep/prepkeyset.c
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*/
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extern bool _use_keyset_query_optimizer;
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extern void transformKeySetQuery(Query *origNode);
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#endif /* PLANMAIN_H */
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@@ -7,7 +7,7 @@
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: restrictinfo.h,v 1.8 2000/01/26 05:58:21 momjian Exp $
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* $Id: restrictinfo.h,v 1.9 2000/09/12 21:07:11 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@@ -18,5 +18,7 @@
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extern bool restriction_is_or_clause(RestrictInfo *restrictinfo);
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extern List *get_actual_clauses(List *restrictinfo_list);
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extern void get_actual_join_clauses(List *restrictinfo_list,
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List **joinquals, List **otherquals);
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#endif /* RESTRICTINFO_H */
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