diff --git a/tests/system-test/2-query/spread.py b/tests/system-test/2-query/spread.py
index 1187078bd4b32e8d5f1a26c125014663366ed0f0..dfec834cfb82c437b40faf6476767deca5414fba 100644
--- a/tests/system-test/2-query/spread.py
+++ b/tests/system-test/2-query/spread.py
@@ -207,6 +207,7 @@ class TDTestCase:
         tdSql.checkRows(self.rows + 3)
         tdSql.query("select spread(c1) from ct4 group by c7")
         tdSql.checkRows(3)
+        tdSql.query("select spread(ct2.c1) from ct4 join ct2 on ct4.ts=ct2.ts")
 
         self.spread_check()