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Remove local optimizations of empty Bitmapsets into null pointers.

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These are all dead code now that it's done centrally.

Patch by me; thanks to Nathan Bossart and Richard Guo for review.

Discussion: https://postgr.es/m/1159933.1677621588@sss.pgh.pa.us
This commit is contained in:
Tom Lane
2023-03-02 12:01:47 -05:00
parent 00b41463c2
commit 6b661b01f4
9 changed files with 9 additions and 64 deletions
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7
src/backend/optimizer/util/relnode.c
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@@ -772,8 +772,6 @@ build_join_rel(PlannerInfo *root,
*/
joinrel->direct_lateral_relids =
bms_del_members(joinrel->direct_lateral_relids, joinrel->relids);
if (bms_is_empty(joinrel->direct_lateral_relids))
joinrel->direct_lateral_relids = NULL;
/*
* Construct restrict and join clause lists for the new joinrel. (The
@@ -1024,11 +1022,6 @@ min_join_parameterization(PlannerInfo *root,
*/
result = bms_union(outer_rel->lateral_relids, inner_rel->lateral_relids);
result = bms_del_members(result, joinrelids);
/* Maintain invariant that result is exactly NULL if empty */
if (bms_is_empty(result))
result = NULL;
return result;
}