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Diffstat (limited to 'src/backend/optimizer/util/plancat.c')
| -rw-r--r-- | src/backend/optimizer/util/plancat.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c index 1cd21c0fdcb..19904b54bd5 100644 --- a/src/backend/optimizer/util/plancat.c +++ b/src/backend/optimizer/util/plancat.c @@ -1337,6 +1337,9 @@ relation_excluded_by_constraints(PlannerInfo *root, List *safe_constraints; ListCell *lc; + /* As of now, constraint exclusion works only with simple relations. */ + Assert(IS_SIMPLE_REL(rel)); + /* * Regardless of the setting of constraint_exclusion, detect * constant-FALSE-or-NULL restriction clauses. Because const-folding will |