diff --git a/DocService/sources/DocsCoServer.js b/DocService/sources/DocsCoServer.js
index 14a42ca1..82f8323b 100644
--- a/DocService/sources/DocsCoServer.js
+++ b/DocService/sources/DocsCoServer.js
@@ -3487,7 +3487,7 @@ exports.install = function(server, callbackFunction) {
             }
           }
         });
-        if (-1 !== index) {
+        if (-1 !== index || 0 === res.length) {
           callbackFunction();
         } else {
           operationContext.global.logger.error('DB table "%s" does not contain %s column, columns info: %j', tableName, tableRequiredColumn, res);
diff --git a/schema/mysql/upgrade/upgradev720.sql b/schema/mysql/upgrade/upgradev720.sql
new file mode 100644
index 00000000..51e483c2
--- /dev/null
+++ b/schema/mysql/upgrade/upgradev720.sql
@@ -0,0 +1,32 @@
+DELIMITER DLM00
+
+DROP PROCEDURE IF EXISTS upgrade720 DLM00
+
+CREATE PROCEDURE upgrade720()
+BEGIN
+	
+	IF NOT EXISTS(SELECT * FROM information_schema.`COLUMNS` WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'task_result' AND COLUMN_NAME = 'tenant') THEN
+		SET SQL_SAFE_UPDATES=0;
+		ALTER TABLE `task_result` ADD COLUMN `tenant` VARCHAR(255) NULL FIRST;
+		UPDATE `task_result` SET `tenant`='localhost' WHERE `tenant` IS NULL;
+		ALTER TABLE `task_result` CHANGE COLUMN `tenant` `tenant` VARCHAR(255) NOT NULL;
+		ALTER TABLE `task_result` DROP PRIMARY KEY;
+		ALTER TABLE `task_result` ADD PRIMARY KEY (`tenant`, `id`);
+		SET SQL_SAFE_UPDATES=1;
+	END IF;
+	
+	IF NOT EXISTS(SELECT * FROM information_schema.`COLUMNS` WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'doc_changes' AND COLUMN_NAME = 'tenant') THEN
+		SET SQL_SAFE_UPDATES=0;
+		ALTER TABLE `doc_changes` ADD COLUMN `tenant` VARCHAR(255) NULL FIRST;
+		UPDATE `doc_changes` SET `tenant`='localhost' WHERE `tenant` IS NULL;
+		ALTER TABLE `doc_changes` CHANGE COLUMN `tenant` `tenant` VARCHAR(255) NOT NULL;
+		ALTER TABLE `doc_changes` DROP PRIMARY KEY;
+		ALTER TABLE `doc_changes` ADD PRIMARY KEY (`tenant`, `id`,`change_id`);
+		SET SQL_SAFE_UPDATES=1;
+	END IF;
+
+END DLM00
+
+CALL upgrade720() DLM00
+
+DELIMITER ;
diff --git a/schema/postgresql/upgrade/upgradev720.sql b/schema/postgresql/upgrade/upgradev720.sql
new file mode 100644
index 00000000..09799580
--- /dev/null
+++ b/schema/postgresql/upgrade/upgradev720.sql
@@ -0,0 +1,21 @@
+DO $$ 
+	BEGIN
+		BEGIN
+			ALTER TABLE "task_result" ADD COLUMN "tenant" varchar(255) COLLATE "default" NOT NULL DEFAULT 'localhost';
+			ALTER TABLE "task_result" ALTER COLUMN "tenant" DROP DEFAULT;
+			ALTER TABLE "task_result" DROP CONSTRAINT IF EXISTS task_result_pkey;
+			ALTER TABLE "task_result" ADD PRIMARY KEY ("tenant", "id");
+		EXCEPTION
+			WHEN duplicate_column THEN RAISE NOTICE 'column `tenant` already exists.';
+		END;
+		
+		BEGIN
+			ALTER TABLE "doc_changes" ADD COLUMN "tenant" varchar(255) COLLATE "default" NOT NULL DEFAULT 'localhost';
+			ALTER TABLE "doc_changes" ALTER COLUMN "tenant" DROP DEFAULT;
+			ALTER TABLE "doc_changes" DROP CONSTRAINT IF EXISTS doc_changes_pkey;
+			ALTER TABLE "doc_changes" ADD PRIMARY KEY ("tenant", "id", "change_id");
+		EXCEPTION
+			WHEN duplicate_column THEN RAISE NOTICE 'column `tenant` already exists.';
+		END;
+	END;
+$$