mysql partition table use to_days bug

psufnxk2000發表於2016-07-08
原文網址 : http://blog.itpub.net/25099483/viewspace-2121742/
MySql
to_days分割槽表 bug

CREATE TABLE `aaaaaaaaaa` (
  `id` int(255) NOT NULL AUTO_INCREMENT,
  `year` int(4) NOT NULL,
  `month` int(2) NOT NULL,
  `day` int(2) NOT NULL,
  `startTime` datetime NOT NULL,
  `endTime` datetime NOT NULL,
  `version` varchar(12) NOT NULL DEFAULT '',
  `source` varchar(12) NOT NULL DEFAULT '',
  `sid` varchar(12) NOT NULL,
  `valid` int(8) NOT NULL,
  `error` int(8) NOT NULL,
  `total` int(8) NOT NULL,
  PRIMARY KEY (`id`,`startTime`,`version`,`source`,`sid`),
  KEY `aaaaaaaaaa_index_startTime` (`startTime`),
  KEY `aaaaaaaaaa_index_endTime` (`endTime`),
  KEY `aaaaaaaaaa_muti_index` (`year`,`month`,`source`),
  KEY `aaaaaaaaaa_index_source` (`source`),
  KEY `month_index` (`month`),
  KEY `year_index` (`year`)
) ENGINE=InnoDB AUTO_INCREMENT=1267666446 DEFAULT CHARSET=utf8
/*!50100 PARTITION BY RANGE (to_days(startTime))
(PARTITION p20160405 VALUES LESS THAN (736425) ENGINE = InnoDB,
 PARTITION p20160620 VALUES LESS THAN (736501) ENGINE = InnoDB,
 PARTITION p20160706 VALUES LESS THAN (736517) ENGINE = InnoDB) */
 
 
  執行下面的sql，mysql 會crash
 select sid as sid,source as source,sum(valid) as valid,sum(error) as error from aaaaaaaaaa where startTime>="2016-07-08 10:00:00" 
 
  通過下面的方法可以fix
 alter table aaaaaaaaaa add PARTITION  (partition p_max values less than(maxvalue));
 


另：

CREATE TABLE `aaaaaaaaaa` (
  `id` int(255) NOT NULL AUTO_INCREMENT,
  `year` int(4) NOT NULL,
  `month` int(2) NOT NULL,
  `day` int(2) NOT NULL,
  `startTime` datetime NOT NULL,
  `endTime` datetime NOT NULL,
  `version` varchar(12) NOT NULL DEFAULT '',
  `source` varchar(12) NOT NULL DEFAULT '',
  `sid` varchar(12) NOT NULL,
  `valid` int(8) NOT NULL,
  `error` int(8) NOT NULL,
  `total` int(8) NOT NULL,
  PRIMARY KEY (`id`,`startTime`,`version`,`source`,`sid`)
  ) ENGINE=InnoDB AUTO_INCREMENT=1267666446 DEFAULT CHARSET=utf8
/*!50100 PARTITION BY RANGE (to_days(startTime))
(PARTITION p20160405 VALUES LESS THAN (736425) ENGINE = InnoDB,
 PARTITION p20160620 VALUES LESS THAN (736501) ENGINE = InnoDB,
 PARTITION p20160706 VALUES LESS THAN (736517) ENGINE = InnoDB) */
 
 這樣不會出現上面的問題
 
 
 
 但如果把starttime列加上索引 ，就會有這個問題
 CREATE TABLE `aaaaaaaaaa` (
  `id` int(255) NOT NULL AUTO_INCREMENT,
  `year` int(4) NOT NULL,
  `month` int(2) NOT NULL,
  `day` int(2) NOT NULL,
  `startTime` datetime NOT NULL,
  `endTime` datetime NOT NULL,
  `version` varchar(12) NOT NULL DEFAULT '',
  `source` varchar(12) NOT NULL DEFAULT '',
  `sid` varchar(12) NOT NULL,
  `valid` int(8) NOT NULL,
  `error` int(8) NOT NULL,
  `total` int(8) NOT NULL,
  PRIMARY KEY (`id`,`startTime`,`version`,`source`,`sid`),
  KEY `aaaaaaaaaa_index_startTime` (`startTime`)
) ENGINE=InnoDB AUTO_INCREMENT=1267666446 DEFAULT CHARSET=utf8
/*!50100 PARTITION BY RANGE (to_days(startTime))
(PARTITION p20160405 VALUES LESS THAN (736425) ENGINE = InnoDB,
 PARTITION p20160620 VALUES LESS THAN (736501) ENGINE = InnoDB,
 PARTITION p20160706 VALUES LESS THAN (736517) ENGINE = InnoDB) */
 
 MOS沒有找到相關的bug
 5.1 5.6 中都沒有這個問題，5.5.24中有這個問題
 
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