https://developers.weixin.qq.com/miniprogram/dev/wxcloud/reference-http-api/database/databaseQuery.html

当查询串涉及到Aggregate时报错，报错信息如下：

{"errcode":-605101,"errmsg":"RuntimeError: cannot get property 'aggregate' (at line 1, col 27) hint: [fcN8ra05642028]"