diff options
Diffstat (limited to 'src/backend/optimizer/util/relnode.c')
| -rw-r--r-- | src/backend/optimizer/util/relnode.c | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/src/backend/optimizer/util/relnode.c b/src/backend/optimizer/util/relnode.c index b59eb090aa0..1df727d9fc8 100644 --- a/src/backend/optimizer/util/relnode.c +++ b/src/backend/optimizer/util/relnode.c @@ -46,6 +46,35 @@ static List *subbuild_joinrel_joinlist(RelOptInfo *joinrel, /* + * setup_simple_rel_arrays + * Prepare the arrays we use for quickly accessing base relations. + */ +void +setup_simple_rel_arrays(PlannerInfo *root) +{ + Index rti; + ListCell *lc; + + /* Arrays are accessed using RT indexes (1..N) */ + root->simple_rel_array_size = list_length(root->parse->rtable) + 1; + + /* simple_rel_array is initialized to all NULLs */ + root->simple_rel_array = (RelOptInfo **) + palloc0(root->simple_rel_array_size * sizeof(RelOptInfo *)); + + /* simple_rte_array is an array equivalent of the rtable list */ + root->simple_rte_array = (RangeTblEntry **) + palloc0(root->simple_rel_array_size * sizeof(RangeTblEntry *)); + rti = 1; + foreach(lc, root->parse->rtable) + { + RangeTblEntry *rte = (RangeTblEntry *) lfirst(lc); + + root->simple_rte_array[rti++] = rte; + } +} + +/* * build_simple_rel * Construct a new RelOptInfo for a base relation or 'other' relation. */ @@ -81,8 +110,7 @@ build_simple_rel(PlannerInfo *root, int relid, RelOptKind reloptkind) rel->pages = 0; rel->tuples = 0; rel->subplan = NULL; - rel->subrtable = NIL; - rel->subrowmark = NIL; + rel->subroot = NULL; rel->baserestrictinfo = NIL; rel->baserestrictcost.startup = 0; rel->baserestrictcost.per_tuple = 0; @@ -335,8 +363,7 @@ build_join_rel(PlannerInfo *root, joinrel->pages = 0; joinrel->tuples = 0; joinrel->subplan = NULL; - joinrel->subrtable = NIL; - joinrel->subrowmark = NIL; + joinrel->subroot = NULL; joinrel->baserestrictinfo = NIL; joinrel->baserestrictcost.startup = 0; joinrel->baserestrictcost.per_tuple = 0; |