diff --git a/contrib/pg_plan_advice/sql/gather.sql b/contrib/pg_plan_advice/sql/gather.sql
index 58280043913..cb04ed5cf30 100644
--- a/contrib/pg_plan_advice/sql/gather.sql
+++ b/contrib/pg_plan_advice/sql/gather.sql
@@ -38,6 +38,9 @@ SET LOCAL pg_plan_advice.advice = 'gather_merge(f d)';
 EXPLAIN (COSTS OFF, PLAN_ADVICE)
 	SELECT * FROM gt_fact f JOIN gt_dim d ON f.dim_id = d.id ORDER BY d.id;
 SET LOCAL pg_plan_advice.advice = 'gather(f d)';
+EXPLAIN (COSTS OFF, PLAN_ADVICE)
+	SELECT * FROM gt_fact f JOIN gt_dim d ON f.dim_id = d.id ORDER BY d.id;
+SET LOCAL pg_plan_advice.advice = 'gather((d d/d.d))';
 EXPLAIN (COSTS OFF, PLAN_ADVICE)
 	SELECT * FROM gt_fact f JOIN gt_dim d ON f.dim_id = d.id ORDER BY d.id;
 COMMIT;
