diff --git a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/mysql/dolphinscheduler_ddl.sql b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/mysql/dolphinscheduler_ddl.sql
new file mode 100644
index 0000000000..4a14f326b9
--- /dev/null
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/mysql/dolphinscheduler_ddl.sql
@@ -0,0 +1,16 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * 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.
+*/
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
new file mode 100644
index 0000000000..06d8fcb465
--- /dev/null
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/mysql/dolphinscheduler_dml.sql
@@ -0,0 +1,96 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * 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
+)
+;
diff --git a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/postgresql/dolphinscheduler_ddl.sql b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/postgresql/dolphinscheduler_ddl.sql
new file mode 100644
index 0000000000..4a14f326b9
--- /dev/null
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/postgresql/dolphinscheduler_ddl.sql
@@ -0,0 +1,16 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * 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.
+*/
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
new file mode 100644
index 0000000000..06d8fcb465
--- /dev/null
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.4_schema/postgresql/dolphinscheduler_dml.sql
@@ -0,0 +1,96 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * 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
+)
+;