diff options
Diffstat (limited to 'src/backend/optimizer/plan/planmain.c')
| -rw-r--r-- | src/backend/optimizer/plan/planmain.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/backend/optimizer/plan/planmain.c b/src/backend/optimizer/plan/planmain.c index de3944b6b07..f12e388d723 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 1.99 2007/01/20 20:45:39 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/plan/planmain.c,v 1.100 2007/04/21 21:01:45 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -86,6 +86,7 @@ query_planner(PlannerInfo *root, List *tlist, double tuple_fraction, Path *cheapestpath; Path *sortedpath; Index rti; + ListCell *lc; double total_pages; /* Make tuple_fraction accessible to lower-level routines */ @@ -124,6 +125,20 @@ query_planner(PlannerInfo *root, List *tlist, double tuple_fraction, 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). + */ + root->simple_rte_array = (RangeTblEntry **) + palloc0(root->simple_rel_array_size * sizeof(RangeTblEntry *)); + rti = 1; + foreach(lc, parse->rtable) + { + RangeTblEntry *rte = (RangeTblEntry *) lfirst(lc); + + root->simple_rte_array[rti++] = rte; + } + + /* * Construct RelOptInfo nodes for all base relations in query, and * indirectly for all appendrel member relations ("other rels"). This * will give us a RelOptInfo for every "simple" (non-join) rel involved in |