diff --git a/tests/pytest/tsdb/tsdbCompCluster.py b/tests/pytest/tsdb/tsdbCompCluster.py
index 39c8b563c5..3df4c9a9d4 100644
--- a/tests/pytest/tsdb/tsdbCompCluster.py
+++ b/tests/pytest/tsdb/tsdbCompCluster.py
@@ -77,14 +77,14 @@ class TwoClients:
         tdSql.execute("drop table if exists stb1_0")
         tdSql.execute("drop table if exists stb1_1")
         tdSql.execute("insert into stb0_0 values(1614218412000,8637,78.861045,'R','bf3')(1614218422000,8637,98.861045,'R','bf3')")
-        tdSql.execute("alter table db2.stb0 add column col4 int")
-        tdSql.execute("alter table db2.stb0 drop column col2")
+        tdSql.execute("alter table db2.stb0 add column c4 int")
+        tdSql.execute("alter table db2.stb0 drop column c2")
         tdSql.execute("alter table db2.stb0  add tag t3 int")        
         tdSql.execute("alter table db2.stb0 drop tag t1")
-        tdSql.execute("create table  if not exists stb2_0 (ts timestamp, col0 int, col1 float)  ")
+        tdSql.execute("create table  if not exists stb2_0 (ts timestamp, c0 int, c1 float)  ")
         tdSql.execute("insert into stb2_0 values(1614218412000,8637,78.861045)")
-        tdSql.execute("alter table stb2_0 add column col2 binary(4)")
-        tdSql.execute("alter table stb2_0 drop column col1")
+        tdSql.execute("alter table stb2_0 add column c2 binary(4)")
+        tdSql.execute("alter table stb2_0 drop column c1")
         tdSql.execute("insert into stb2_0 values(1614218422000,8638,'R')")
 
         # create  db utest and modify super tables;
diff --git a/tests/pytest/tsdb/tsdbCompClusterReplica2.py b/tests/pytest/tsdb/tsdbCompClusterReplica2.py
index 9b43b7ce80..2e016deea0 100644
--- a/tests/pytest/tsdb/tsdbCompClusterReplica2.py
+++ b/tests/pytest/tsdb/tsdbCompClusterReplica2.py
@@ -76,14 +76,14 @@ class TwoClients:
         tdSql.execute("drop table if exists stb1_0")
         tdSql.execute("drop table if exists stb1_1")
         tdSql.execute("insert into stb0_0 values(1614218412000,8637,78.861045,'R','bf3')(1614218422000,8637,98.861045,'R','bf3')")
-        tdSql.execute("alter table db2.stb0 add column col4 int")
-        tdSql.execute("alter table db2.stb0 drop column col2")
+        tdSql.execute("alter table db2.stb0 add column c4 int")
+        tdSql.execute("alter table db2.stb0 drop column c2")
         tdSql.execute("alter table db2.stb0  add tag t3 int")        
         tdSql.execute("alter table db2.stb0 drop tag t1")
-        tdSql.execute("create table  if not exists stb2_0 (ts timestamp, col0 int, col1 float)  ")
+        tdSql.execute("create table  if not exists stb2_0 (ts timestamp, c0 int, c1 float)  ")
         tdSql.execute("insert into stb2_0 values(1614218412000,8637,78.861045)")
-        tdSql.execute("alter table stb2_0 add column col2 binary(4)")
-        tdSql.execute("alter table stb2_0 drop column col1")
+        tdSql.execute("alter table stb2_0 add column c2 binary(4)")
+        tdSql.execute("alter table stb2_0 drop column c1")
         tdSql.execute("insert into stb2_0 values(1614218422000,8638,'R')")