diff --git a/source/libs/planner/test/planBasicTest.cpp b/source/libs/planner/test/planBasicTest.cpp
index c5a9a447c7..150df76416 100644
--- a/source/libs/planner/test/planBasicTest.cpp
+++ b/source/libs/planner/test/planBasicTest.cpp
@@ -103,6 +103,9 @@ TEST_F(PlanBasicTest, interpFunc) {
   run("SELECT INTERP(c1) FROM t1 RANGE('2017-7-14 18:00:00', '2017-7-14 19:00:00') EVERY(5s) FILL(LINEAR)");
 
   run("SELECT _IROWTS, INTERP(c1) FROM t1 RANGE('2017-7-14 18:00:00', '2017-7-14 19:00:00') EVERY(5s) FILL(LINEAR)");
+
+  run("SELECT TBNAME, _IROWTS, INTERP(c1) FROM t1 PARTITION BY TBNAME "
+      "RANGE('2017-7-14 18:00:00', '2017-7-14 19:00:00') EVERY(5s) FILL(LINEAR)");
 }
 
 TEST_F(PlanBasicTest, lastRowFuncWithoutCache) {