diff --git a/tests/system-test/0-others/udfTest.py b/tests/system-test/0-others/udfTest.py
index a58e22ba1c..48102c01e8 100644
--- a/tests/system-test/0-others/udfTest.py
+++ b/tests/system-test/0-others/udfTest.py
@@ -279,7 +279,6 @@ class TDTestCase:
         tdSql.error("select udf1(num1) , irate(num1) from tb;")
         tdSql.error("select udf1(num1) , sum(num1) from tb;")
         tdSql.error("select udf1(num1) , stddev(num1) from tb;")
-        tdSql.error("select udf1(num1) , mode(num1) from tb;")
         tdSql.error("select udf1(num1) , HYPERLOGLOG(num1) from tb;")
         # stable
         tdSql.error("select udf1(c1) , count(c1) from stb1;")
@@ -288,7 +287,6 @@ class TDTestCase:
         tdSql.error("select udf1(c1) , irate(c1) from stb1;")
         tdSql.error("select udf1(c1) , sum(c1) from stb1;")
         tdSql.error("select udf1(c1) , stddev(c1) from stb1;")
-        tdSql.error("select udf1(c1) , mode(c1) from stb1;")
         tdSql.error("select udf1(c1) , HYPERLOGLOG(c1) from stb1;")
 
         # regular table with select functions
diff --git a/tests/system-test/0-others/udf_create.py b/tests/system-test/0-others/udf_create.py
index 736943cc56..2fbd43eb86 100644
--- a/tests/system-test/0-others/udf_create.py
+++ b/tests/system-test/0-others/udf_create.py
@@ -281,7 +281,6 @@ class TDTestCase:
         tdSql.error("select udf1(num1) , irate(num1) from tb;")
         tdSql.error("select udf1(num1) , sum(num1) from tb;")
         tdSql.error("select udf1(num1) , stddev(num1) from tb;")
-        tdSql.error("select udf1(num1) , mode(num1) from tb;")
         tdSql.error("select udf1(num1) , HYPERLOGLOG(num1) from tb;")
         # stable
         tdSql.error("select udf1(c1) , count(c1) from stb1;")
@@ -290,7 +289,6 @@ class TDTestCase:
         tdSql.error("select udf1(c1) , irate(c1) from stb1;")
         tdSql.error("select udf1(c1) , sum(c1) from stb1;")
         tdSql.error("select udf1(c1) , stddev(c1) from stb1;")
-        tdSql.error("select udf1(c1) , mode(c1) from stb1;")
         tdSql.error("select udf1(c1) , HYPERLOGLOG(c1) from stb1;")
 
         # regular table with select functions
diff --git a/tests/system-test/0-others/udf_restart_taosd.py b/tests/system-test/0-others/udf_restart_taosd.py
index 02c59c21e1..5fc5158f1f 100644
--- a/tests/system-test/0-others/udf_restart_taosd.py
+++ b/tests/system-test/0-others/udf_restart_taosd.py
@@ -278,7 +278,6 @@ class TDTestCase:
         tdSql.error("select udf1(num1) , irate(num1) from tb;")
         tdSql.error("select udf1(num1) , sum(num1) from tb;")
         tdSql.error("select udf1(num1) , stddev(num1) from tb;")
-        tdSql.error("select udf1(num1) , mode(num1) from tb;")
         tdSql.error("select udf1(num1) , HYPERLOGLOG(num1) from tb;")
         # stable
         tdSql.error("select udf1(c1) , count(c1) from stb1;")
@@ -287,7 +286,6 @@ class TDTestCase:
         tdSql.error("select udf1(c1) , irate(c1) from stb1;")
         tdSql.error("select udf1(c1) , sum(c1) from stb1;")
         tdSql.error("select udf1(c1) , stddev(c1) from stb1;")
-        tdSql.error("select udf1(c1) , mode(c1) from stb1;")
         tdSql.error("select udf1(c1) , HYPERLOGLOG(c1) from stb1;")
 
         # regular table with select functions