TODO use db_name; -- 分析表 ANALYZE TABLE table_name; -- 查看表信息 ; -- 查看索引 SHOW INDEX FROM table_name; https://blog.csdn.net/boshuzhang/article/details/65632708 https://help.aliyun.com/document_detail/98819.html?spm=a2c4g.11186623.6.695.259b4c073n14a5 htt