异步导出参数字段长度

examcloud-core-oe-admin-dao/src/main/java/cn/com/qmth/examcloud/core/oe/admin/dao/entity/ExportTaskEntity.java

@@ -82,7 +82,7 @@ public class ExportTaskEntity extends JpaEntity {
     /**
      * 导出的参数
      */
-    @Column
+    @Column(length = 1000)
     private String exportParam;
     
     /**