摘要: 索引失效 EXPLAIN SELECT dt.name AS deviceName, su.`name` AS userName, date_format(co.upload_time, '%Y%m%d') as time FROM tb_cust_order co INNER JOIN sys_u 阅读全文
posted @ 2022-09-21 17:51 Peter.Jones 阅读(313) 评论(0) 推荐(0) 编辑