1114innodb的统计信息对optimizer成本预估影响实例 CARDINALITY时间：2022-02-25 07:19:16转自 https://www.cnblogs.com/olinux/p/5140615.html 转自 https://yq.aliyun.com/articles/174906?spm=5176.8091938.0.0.hTWrxB
