unicloud 调用云数据库 groupby 报错：TypeError: db.collection(...).groupBy is not a function

分类：uniCloud

云函数调用云数据库的分组统计，一直报错 TypeError: db.collection(...).groupBy is not a function

'use strict';
exports.main = async (event, context) => {

const db = uniCloud.database();  

sql_param.enable = 1;  
const rst = await db.collection('mr-record').groupBy("wx_openid").groupField('sum(mile_num) mile_sum').get();  
//event为客户端上传的参数  

console.log('=== unicloud record sum : ')  
console.log(event)  
console.log(rst);  

//返回数据给客户端  
return rst;

};