云函数报错操作超出时间限制 Error in $cursor stage :: caused by :: operation exceeded time limit

阿里云 云函数

'use strict';  
exports.main = async (event, context) => {  
    const db = uniCloud.database();  
    const dbCmd = db.command;  
    const collection = db.collection('dataList');  
    const $ = dbCmd.aggregate  
    if (!event.id) {  
        return false  
    }  
    let dats = {};  
    let status = dbCmd.eq(2);  
    if (event.isMe) {  
        status = dbCmd.gte(-2);  
    } else {  
        status = dbCmd.gte(1);  
    }  
    let skip = event.skip*1;  
    if(!skip){  
        skip = 0  
    }  
    if (event.lookup) { //连表查询,添加like数据  
        if (event.type == 'dynamic' || event.type == 'dynamic2') {  
            dats = {  
                uid: event.id,  
                status: status  
            }  
            if (event.sortId) {  
                if (event.sortId > 0) {  
                    dats = {  
                        uid: event.id,  
                        status: status,  
                        sortId: event.sortId  
                    }  
                }  
            }  
        } else {  
            dats = {  
                uid: event.id,  
                status: dbCmd.eq(2)  
            }  
        }  
        let res = await collection.aggregate()  
            .sort({  
                "_id": -1  
            })  
            .match(dats)  
            .skip(skip)  
            .limit(15)  
            .lookup({  
                from: 'user-like',  
                let: {  
                    m_id: '$_id'  
                },  
                pipeline: $.pipeline()  
                    .match(dbCmd.expr($.and([  
                        $.eq(['$mid', '$$m_id']),  
                        $.eq(['$uid', event.id])  
                    ])))  
                    .project({  
                        _id: 1,  
                        uid: 1,  
                        mid: 1  
                    })  
                    .done(),  
                as: 'like'  
            })  
            .end()  
        dats = null;  
        skip = null;  
        status=null;  
        return res.data;  
    } else {  
        if (event.type == 'dynamic' || event.type == 'dynamic2') {  
            dats = {  
                uid: event.id,  
                status: status  
            }  
            if (event.sortId) {  
                if (event.sortId > 0) {  
                    dats = {  
                        uid: event.id,  
                        status: status,  
                        sortId: event.sortId  
                    }  
                }  
            }  
        } else {  
            dats = {  
                uid: event.id,  
                status: dbCmd.eq(2)  
            }  
        }  
        let res = await collection.where(dats)  
            .skip(event.skip)  
            .limit(15)  
            .orderBy("time", "desc")  
            .get();  
        return res.data  
    }  

};