diff options
Diffstat (limited to 'src/backend/utils/adt/selfuncs.c')
| -rw-r--r-- | src/backend/utils/adt/selfuncs.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/utils/adt/selfuncs.c b/src/backend/utils/adt/selfuncs.c index 5f5d7959d8e..877a62a62ec 100644 --- a/src/backend/utils/adt/selfuncs.c +++ b/src/backend/utils/adt/selfuncs.c @@ -3313,10 +3313,11 @@ add_unique_group_var(PlannerInfo *root, List *varinfos, /* * Drop known-equal vars, but only if they belong to different - * relations (see comments for estimate_num_groups) + * relations (see comments for estimate_num_groups). We aren't too + * fussy about the semantics of "equal" here. */ if (vardata->rel != varinfo->rel && - exprs_known_equal(root, var, varinfo->var)) + exprs_known_equal(root, var, varinfo->var, InvalidOid)) { if (varinfo->ndistinct <= ndistinct) { |