diff --git a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/mysql/dolphinscheduler_dml.sql b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/mysql/dolphinscheduler_dml.sql
index 06d8fcb465..38964cc551 100644
--- a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/mysql/dolphinscheduler_dml.sql
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/mysql/dolphinscheduler_dml.sql
@@ -13,84 +13,4 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
-*/
-
-DELETE FROM t_ds_process_task_relation_log WHERE id IN
-(
- SELECT
-     x.id
- FROM
-     (
-         SELECT
-             aa.id
-         FROM
-             t_ds_process_task_relation_log aa
-                 JOIN
-             (
-                 SELECT
-                     a.process_definition_code
-                      ,MAX(a.id) as min_id
-                      ,a.pre_task_code
-                      ,a.pre_task_version
-                      ,a.post_task_code
-                      ,a.post_task_version
-                      ,a.process_definition_version
-                      ,COUNT(*) cnt
-                 FROM
-                     t_ds_process_task_relation_log a
-                         JOIN (
-                         SELECT
-                             code
-                         FROM
-                             t_ds_process_definition
-                         GROUP BY code
-                     )b ON b.code = a.process_definition_code
-                 WHERE 1=1
-                 GROUP BY a.pre_task_code
-                        ,a.post_task_code
-                        ,a.pre_task_version
-                        ,a.post_task_version
-                        ,a.process_definition_code
-                        ,a.process_definition_version
-                 HAVING COUNT(*) > 1
-             )bb ON bb.process_definition_code = aa.process_definition_code
-                 AND bb.pre_task_code = aa.pre_task_code
-                 AND bb.post_task_code = aa.post_task_code
-                 AND bb.process_definition_version = aa.process_definition_version
-                 AND bb.pre_task_version = aa.pre_task_version
-                 AND bb.post_task_version = aa.post_task_version
-                 AND bb.min_id != aa.id
-     )x
-)
-;
-
-DELETE FROM t_ds_task_definition_log WHERE id IN
-(
-   SELECT
-       x.id
-   FROM
-       (
-           SELECT
-               a.id
-           FROM
-               t_ds_task_definition_log a
-                   JOIN
-               (
-                   SELECT
-                       code
-                        ,name
-                        ,version
-                        ,MAX(id) AS min_id
-                   FROM
-                       t_ds_task_definition_log
-                   GROUP BY code
-                          ,name
-                          ,version
-                   HAVING COUNT(*) > 1
-               )b ON b.code = a.code
-                   AND b.name = a.name
-                   AND b.version = a.version
-                   AND b.min_id != a.id
-       )x
-)
-;
+*/
\ No newline at end of file
diff --git a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/postgresql/dolphinscheduler_dml.sql b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/postgresql/dolphinscheduler_dml.sql
index 06d8fcb465..38964cc551 100644
--- a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/postgresql/dolphinscheduler_dml.sql
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/postgresql/dolphinscheduler_dml.sql
@@ -13,84 +13,4 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
-*/
-
-DELETE FROM t_ds_process_task_relation_log WHERE id IN
-(
- SELECT
-     x.id
- FROM
-     (
-         SELECT
-             aa.id
-         FROM
-             t_ds_process_task_relation_log aa
-                 JOIN
-             (
-                 SELECT
-                     a.process_definition_code
-                      ,MAX(a.id) as min_id
-                      ,a.pre_task_code
-                      ,a.pre_task_version
-                      ,a.post_task_code
-                      ,a.post_task_version
-                      ,a.process_definition_version
-                      ,COUNT(*) cnt
-                 FROM
-                     t_ds_process_task_relation_log a
-                         JOIN (
-                         SELECT
-                             code
-                         FROM
-                             t_ds_process_definition
-                         GROUP BY code
-                     )b ON b.code = a.process_definition_code
-                 WHERE 1=1
-                 GROUP BY a.pre_task_code
-                        ,a.post_task_code
-                        ,a.pre_task_version
-                        ,a.post_task_version
-                        ,a.process_definition_code
-                        ,a.process_definition_version
-                 HAVING COUNT(*) > 1
-             )bb ON bb.process_definition_code = aa.process_definition_code
-                 AND bb.pre_task_code = aa.pre_task_code
-                 AND bb.post_task_code = aa.post_task_code
-                 AND bb.process_definition_version = aa.process_definition_version
-                 AND bb.pre_task_version = aa.pre_task_version
-                 AND bb.post_task_version = aa.post_task_version
-                 AND bb.min_id != aa.id
-     )x
-)
-;
-
-DELETE FROM t_ds_task_definition_log WHERE id IN
-(
-   SELECT
-       x.id
-   FROM
-       (
-           SELECT
-               a.id
-           FROM
-               t_ds_task_definition_log a
-                   JOIN
-               (
-                   SELECT
-                       code
-                        ,name
-                        ,version
-                        ,MAX(id) AS min_id
-                   FROM
-                       t_ds_task_definition_log
-                   GROUP BY code
-                          ,name
-                          ,version
-                   HAVING COUNT(*) > 1
-               )b ON b.code = a.code
-                   AND b.name = a.name
-                   AND b.version = a.version
-                   AND b.min_id != a.id
-       )x
-)
-;
+*/
\ No newline at end of file