diff --git a/core/core-backend/src/main/resources/db/migration/V2.8__ddl.sql b/core/core-backend/src/main/resources/db/migration/V2.8__ddl.sql
new file mode 100644
index 0000000000..9ac0579979
--- /dev/null
+++ b/core/core-backend/src/main/resources/db/migration/V2.8__ddl.sql
@@ -0,0 +1 @@
+ALTER TABLE `core_export_task` ADD COLUMN `msg` LONGTEXT NULL COMMENT '错误信息' AFTER `params`;