diff --git a/e2e_test/streaming/watermark.slt b/e2e_test/streaming/watermark.slt
index 222811eb08a8c..f145a3a46e282 100644
--- a/e2e_test/streaming/watermark.slt
+++ b/e2e_test/streaming/watermark.slt
@@ -38,6 +38,12 @@ select * from mv2;
 2023-05-06 16:51:00 1
 2023-05-06 16:51:00 2
 2023-05-06 16:51:00 3
+2023-05-06 16:51:00 1
+2023-05-06 16:51:00 2
+2023-05-06 16:51:00 3
+2023-05-06 16:51:00 1
+2023-05-06 16:51:00 2
+2023-05-06 16:51:00 3
 
 statement ok
 drop materialized view mv1;