diff options
Diffstat (limited to 'src/backend/optimizer/plan/planmain.c')
| -rw-r--r-- | src/backend/optimizer/plan/planmain.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/src/backend/optimizer/plan/planmain.c b/src/backend/optimizer/plan/planmain.c index 772ee84e8d5..f7bef9004b6 100644 --- a/src/backend/optimizer/plan/planmain.c +++ b/src/backend/optimizer/plan/planmain.c @@ -14,7 +14,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/plan/planmain.c,v 1.103 2007/10/04 20:44:47 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/plan/planmain.c,v 1.104 2007/11/15 21:14:36 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -110,9 +110,10 @@ query_planner(PlannerInfo *root, List *tlist, *cheapest_path = (Path *) create_result_path((List *) parse->jointree->quals); *sorted_path = NULL; + /* - * We still are required to canonicalize any pathkeys, in case - * it's something like "SELECT 2+2 ORDER BY 1". + * We still are required to canonicalize any pathkeys, in case it's + * something like "SELECT 2+2 ORDER BY 1". */ root->canon_pathkeys = NIL; root->query_pathkeys = canonicalize_pathkeys(root, @@ -143,8 +144,8 @@ query_planner(PlannerInfo *root, List *tlist, root->oj_info_list = NIL; /* - * Make a flattened version of the rangetable for faster access (this - * is OK because the rangetable won't change any more). + * Make a flattened version of the rangetable for faster access (this is + * OK because the rangetable won't change any more). */ root->simple_rte_array = (RangeTblEntry **) palloc0(root->simple_rel_array_size * sizeof(RangeTblEntry *)); @@ -198,8 +199,8 @@ query_planner(PlannerInfo *root, List *tlist, * Examine the targetlist and qualifications, adding entries to baserel * targetlists for all referenced Vars. Restrict and join clauses are * added to appropriate lists belonging to the mentioned relations. We - * also build EquivalenceClasses for provably equivalent expressions, - * and form a target joinlist for make_one_rel() to work from. + * also build EquivalenceClasses for provably equivalent expressions, and + * form a target joinlist for make_one_rel() to work from. * * Note: all subplan nodes will have "flat" (var-only) tlists. This * implies that all expression evaluations are done at the root of the @@ -227,14 +228,14 @@ query_planner(PlannerInfo *root, List *tlist, /* * If we formed any equivalence classes, generate additional restriction - * clauses as appropriate. (Implied join clauses are formed on-the-fly + * clauses as appropriate. (Implied join clauses are formed on-the-fly * later.) */ generate_base_implied_equalities(root); /* * We have completed merging equivalence sets, so it's now possible to - * convert the requested query_pathkeys to canonical form. Also + * convert the requested query_pathkeys to canonical form. Also * canonicalize the groupClause and sortClause pathkeys for use later. */ root->query_pathkeys = canonicalize_pathkeys(root, root->query_pathkeys); |