diff options
Diffstat (limited to 'src/backend/optimizer/path/allpaths.c')
| -rw-r--r-- | src/backend/optimizer/path/allpaths.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c index ba421b4f5ff..8ebcc5d4794 100644 --- a/src/backend/optimizer/path/allpaths.c +++ b/src/backend/optimizer/path/allpaths.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/optimizer/path/allpaths.c,v 1.44 1999/02/22 05:26:18 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/optimizer/path/allpaths.c,v 1.45 1999/05/25 16:09:22 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -45,10 +45,10 @@ int32 _use_geqo_rels_ = GEQO_RELS; static void set_base_rel_pathlist(Query *root, List *rels); static RelOptInfo *make_one_rel_by_joins(Query *root, List *rels, - int levels_needed); + int levels_needed); #ifdef OPTIMIZER_DEBUG -static void debug_print_rel(Query *root, RelOptInfo *rel); +static void debug_print_rel(Query *root, RelOptInfo * rel); #endif @@ -76,6 +76,7 @@ make_one_rel(Query *root, List *rels) if (levels_needed <= 1) { + /* * Unsorted single relation, no more processing is required. */ @@ -83,6 +84,7 @@ make_one_rel(Query *root, List *rels) } else { + /* * This means that joins or sorts are required. set selectivities * of clauses that have not been set by an index. @@ -117,17 +119,17 @@ set_base_rel_pathlist(Query *root, List *rels) sequential_scan_list = lcons(create_seqscan_path(rel), NIL); rel_index_scan_list = create_index_paths(root, - rel, - find_relation_indices(root, rel), - rel->restrictinfo, - rel->joininfo); + rel, + find_relation_indices(root, rel), + rel->restrictinfo, + rel->joininfo); or_index_scan_list = create_or_index_paths(root, rel, rel->restrictinfo); rel->pathlist = add_pathlist(rel, sequential_scan_list, nconc(rel_index_scan_list, - or_index_scan_list)); + or_index_scan_list)); set_cheapest(rel, rel->pathlist); @@ -171,13 +173,14 @@ make_one_rel_by_joins(Query *root, List *rels, int levels_needed) *******************************************/ if ((_use_geqo_) && length(root->base_rel_list) >= _use_geqo_rels_) return geqo(root); - + /******************************************* * rest will be deprecated in case of GEQO * *******************************************/ while (--levels_needed) { + /* * Determine all possible pairs of relations to be joined at this * level. Determine paths for joining these relation pairs and @@ -193,6 +196,7 @@ make_one_rel_by_joins(Query *root, List *rels, int levels_needed) root->join_rel_list = rels = joined_rels; #ifdef NOT_USED + /* * * for each expensive predicate in each path in each distinct * rel, * consider doing pullup -- JMH @@ -351,7 +355,7 @@ print_path(Query *root, Path *path, int indent) } static void -debug_print_rel(Query *root, RelOptInfo *rel) +debug_print_rel(Query *root, RelOptInfo * rel) { List *l; |