Go异常汇总

Xorm GroupBy 取出的数据异常踩坑

1.连表的场景不映射的场景

这样就可以了

2.in 和 ？不兼容的问题

1.不能这样替换，会直接报错

2.查询数据不全

其实sql查询应该有三条的，但是这样查询出来只有1条，需要注意

[xorm] [info]  2021/12/14 10:05:26.127291 [SQL] SELECT `id`, `order_no`, `purchase_no`  FROM `eb_tibao_order_purchase` WHERE (((audit_status = ? AND first_purchase_id = ? AND kill_status = ? AND node_id = ?) OR id IN (?) )) ORDER BY  id asc  LIMIT 20 [2 0 0 30 102112,102070,102124] - 89.114273ms

连表别名的问题

报错场景

count, err := receiver.engine.Alias("c").Join("INNER", "eb_newtibao_order a", "c.order_id = a.id").
 Where(whereSlice[0], params...).Count(maj)

解决办法1

加 as

count, err := receiver.engine.Alias("c").Join("INNER", "eb_newtibao_order as a", "c.order_id = a.id").Where(whereSlice[0], params...).Count(maj)

解决办法2

不要用a 关键字

count, err := receiver.engine.Alias("c").Join("INNER", "eb_newtibao_order o", "c.order_id = o.id").
 Where(whereSlice[0], params...).Count(maj)

DeletedAt 问题

自动生成的一般会在 DeletedAt 后面加 DeletedAt

连表场景已经验证
DeletedAt            time.Time `json:"deleted_at" xorm:"deleted TIMESTAMP"`

//xorm:"deleted TIMESTAMP" xorm操作会自动再sql后面添加  AND (`c`.`deleted_at`=? OR `c`.`deleted_at` IS NULL)

debug模式 rpc调用报错

个人猜测debug模式rpc请求时间太长，类似于请求超时

替换为正常模式

现在可以了

gorm 关于查询字段大写的时候的问题

go-zero

2022/03/19 19:15:20 empty etcd hosts

zrpc报错

panic: duplicate metrics collector registration attempted

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