sql: Fix Zones are returned in a random order (#3934) (#4494)

Author: ustcweizhou

engine/schema/src/main/resources/META-INF/db/schema-41400to41500.sql

@@ -837,3 +837,6 @@ UPDATE `cloud`.`guest_os` SET category_id = 7 WHERE id = 275 AND display_name =
 -- Add flag 'hidden' in tables usage_ip_address and cloud_usage
 ALTER TABLE `cloud_usage`.`usage_ip_address` ADD COLUMN `is_hidden` smallint(1) NOT NULL DEFAULT '0' COMMENT 'is usage hidden';
 ALTER TABLE `cloud_usage`.`cloud_usage` ADD COLUMN `is_hidden` smallint(1) NOT NULL DEFAULT '0' COMMENT 'is usage hidden';
+
+-- Fix Zones are returned in a random order (#3934)
+UPDATE `cloud`.`data_center` JOIN (SELECT COUNT(1) AS count FROM `cloud`.`data_center` WHERE `sort_key` != 0) AS tbl_tmp SET `sort_key` = `id` WHERE count = 0;