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复合索引的列顺序判断(六)
2014-11-23 23:25:56 来源: 作者: 【 】 浏览:23
Tags:复合 索引 顺序 判断
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" alt="\" />
select * from userresult_f where askid=800808 and uid=110996854;
mysql> select sum(askid=800808),sum(uid=110996854) from userresult_f\G; *************************** 1. row *************************** sum(askid=800808): 6 sum(uid=110996854): 2 1 row in set (0.00 sec)
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