diff options
Diffstat (limited to 'src/backend')
| -rw-r--r-- | src/backend/optimizer/plan/planner.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/backend/optimizer/plan/planner.c b/src/backend/optimizer/plan/planner.c index fcb57bf411b..f25eb9b02da 100644 --- a/src/backend/optimizer/plan/planner.c +++ b/src/backend/optimizer/plan/planner.c @@ -1756,6 +1756,11 @@ grouping_planner(PlannerInfo *root, double tuple_fraction) if (parse->groupingSets) { + if (!grouping_is_sortable(parse->groupClause)) + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("could not implement GROUP BY"), + errdetail("Some of the datatypes do not support sorting, which is required for grouping sets."))); use_hashed_grouping = false; } else |