diff --git a/schema/createdb.sql b/schema/createdb.sql
index 77a7311e..267e94e3 100644
--- a/schema/createdb.sql
+++ b/schema/createdb.sql
@@ -21,13 +21,6 @@
 CREATE DATABASE IF NOT EXISTS onlyoffice DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
 USE onlyoffice;
 
---
--- Drop tables
---
-DROP TABLE IF EXISTS `doc_callbacks`;
-DROP TABLE IF EXISTS `doc_changes`;
-DROP TABLE IF EXISTS `task_result`;
-
 --
 -- Definition of table `doc_changes`
 --
diff --git a/schema/postgresql/removetbl.sql b/schema/postgresql/removetbl.sql
index b97f34f6..1535e48a 100644
--- a/schema/postgresql/removetbl.sql
+++ b/schema/postgresql/removetbl.sql
@@ -8,3 +8,4 @@ DROP TABLE IF EXISTS "public"."task_result";
 --https://www.postgresql.org/docs/current/static/plpgsql-control-structures.html#PLPGSQL-UPSERT-EXAMPLE
 DROP FUNCTION IF EXISTS merge_db(_id varchar(255), _status int2, _status_info int8, _last_open_date timestamp without time zone, _title varchar(255), _user_index int8, _change_id int8, OUT isupdate char(5), OUT userindex int8) CASCADE;
 DROP FUNCTION IF EXISTS merge_db(_id varchar(255), _status int2, _status_info int4, _last_open_date timestamp without time zone, _title varchar(255), _user_index int4, _change_id int4, OUT isupdate char(5), OUT userindex int4) CASCADE;
+DROP FUNCTION IF EXISTS merge_db(_id varchar(255), _status int2, _status_info int4, _last_open_date timestamp without time zone, _user_index int4, _change_id int4, _callback text, _baseurl text, OUT isupdate char(5), OUT userindex int4) CASCADE;
diff --git a/schema/removetbl.sql b/schema/removetbl.sql
new file mode 100644
index 00000000..cad0d885
--- /dev/null
+++ b/schema/removetbl.sql
@@ -0,0 +1,6 @@
+--
+-- Drop tables
+--
+DROP TABLE IF EXISTS `doc_callbacks`;
+DROP TABLE IF EXISTS `doc_changes`;
+DROP TABLE IF EXISTS `task_result`;
\ No newline at end of file