一、mysql group commit 的官方定義: InnoDB, like any other ACID-compliant database engine, flushes the redo log of a transaction before it is committed. InnoDB uses group commit functionality to group multiple such flush requests together to avoid o
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有一個網友在QQ群中問到:各位,這條語句還能加個去重不?SELECT cc.customer_id?? as userId,cc.content as content,??????? cc.logs_rank? as rank, cc.add_time as time,g.goods_thumb_min as url,cc.goods_label ASgoodsLabel,g.cat_idAS catId, g.goods_id A