1 files changed, 58 insertions, 0 deletions
diff --git a/src/test/regress/expected/rules.out b/src/test/regress/expected/rules.out
index 112891bbb2c..e1098fd6845 100644
--- a/src/test/regress/expected/rules.out
+++ b/src/test/regress/expected/rules.out
@@ -1493,3 +1493,61 @@ select * from id_ordered;
 
 set client_min_messages to warning; -- suppress cascade notices
 drop table id cascade;
+reset client_min_messages;
+--
+-- check corner case where an entirely-dummy subplan is created by
+-- constraint exclusion
+--
+create temp table t1 (a integer primary key);
+NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "t1_pkey" for table "t1"
+create temp table t1_1 (check (a >= 0 and a < 10)) inherits (t1);
+create temp table t1_2 (check (a >= 10 and a < 20)) inherits (t1);
+create rule t1_ins_1 as on insert to t1 
+	where new.a >= 0 and new.a < 10
+	do instead
+	insert into t1_1 values (new.a);
+create rule t1_ins_2 as on insert to t1 
+	where new.a >= 10 and new.a < 20
+	do instead
+	insert into t1_2 values (new.a);
+create rule t1_upd_1 as on update to t1
+	where old.a >= 0 and old.a < 10
+	do instead
+	update t1_1 set a = new.a where a = old.a;
+create rule t1_upd_2 as on update to t1
+	where old.a >= 10 and old.a < 20
+	do instead
+	update t1_2 set a = new.a where a = old.a;
+set constraint_exclusion = on;
+insert into t1 select * from generate_series(5,19,1) g;
+update t1 set a = 4 where a = 5;
+select * from only t1;
+ a 
+---
+(0 rows)
+
+select * from only t1_1;
+ a 
+---
+ 6
+ 7
+ 8
+ 9
+ 4
+(5 rows)
+
+select * from only t1_2;
+ a  
+----
+ 10
+ 11
+ 12
+ 13
+ 14
+ 15
+ 16
+ 17
+ 18
+ 19
+(10 rows)
+