diff options
Diffstat (limited to 'src/backend/optimizer/path/allpaths.c')
| -rw-r--r-- | src/backend/optimizer/path/allpaths.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c index 00b22c0abc2..8de364a04af 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 1.22 1998/09/01 03:23:17 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/optimizer/path/allpaths.c,v 1.23 1998/09/01 04:29:27 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -45,8 +45,10 @@ int32 _use_geqo_rels_ = GEQO_RELS; static void find_rel_paths(Query *root, List *rels); static List *find_join_paths(Query *root, List *outer_rels, 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 +78,7 @@ find_paths(Query *root, List *rels) if (levels_needed <= 1) { + /* * Unsorted single relation, no more processing is required. */ @@ -83,6 +86,7 @@ find_paths(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. @@ -118,10 +122,10 @@ find_rel_paths(Query *root, List *rels) sequential_scan_list = lcons(create_seqscan_path(rel), NIL); rel_index_scan_list = find_index_paths(root, - rel, - find_relation_indices(root, rel), - rel->clauseinfo, - rel->joininfo); + rel, + find_relation_indices(root, rel), + rel->clauseinfo, + rel->joininfo); or_index_scan_list = create_or_index_paths(root, rel, rel->clauseinfo); @@ -180,7 +184,8 @@ find_join_paths(Query *root, List *outer_rels, int levels_needed) *******************************************/ if ((_use_geqo_) && length(root->base_rel_list) >= _use_geqo_rels_) - return lcons(geqo(root), NIL); /* returns *one* RelOptInfo, so lcons it */ + return lcons(geqo(root), NIL); /* returns *one* RelOptInfo, so + * lcons it */ /******************************************* * rest will be deprecated in case of GEQO * @@ -280,7 +285,7 @@ print_joinclauses(Query *root, List *clauses) foreach(l, clauses) { - ClauseInfo *c = lfirst(l); + ClauseInfo *c = lfirst(l); print_expr((Node *) c->clause, root->rtable); if (lnext(l)) @@ -396,7 +401,7 @@ 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; @@ -412,4 +417,4 @@ debug_print_rel(Query *root, RelOptInfo *rel) print_path(root, rel->cheapestpath, 1); } -#endif /* OPTIMIZER_DEBUG */ +#endif /* OPTIMIZER_DEBUG */ |