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39 lines
1.1 KiB
Text
39 lines
1.1 KiB
Text
--source include/have_innodb.inc
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CREATE TABLE `t1` (
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`c1` int(11) NOT NULL,
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`c2` datetime DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1;
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CREATE TABLE `t2` (
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`c0` varchar(10) NOT NULL,
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`c1` int(11) NOT NULL,
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`c2` int(11) NOT NULL,
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PRIMARY KEY (`c0`,`c1`),
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KEY `c1` (`c1`),
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KEY `c2` (`c2`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1;
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CREATE TABLE `t3` (
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`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
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`c1` datetime NOT NULL,
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`c2` bigint(20) NOT NULL,
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`c3` int(4) unsigned NOT NULL,
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PRIMARY KEY (`id`),
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KEY `c2` (`c2`),
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KEY `c3` (`c3`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1;
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CREATE TABLE `t4` (
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`c1` int(11) NOT NULL,
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`c2` bigint(20) DEFAULT NULL,
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`c3` int(11) NOT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=latin1;
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CREATE ALGORITHM=UNDEFINED VIEW `v1` AS select `t4`.`c1` AS `c1`,`t4`.`c2` AS `c2`,`t4`.`c3` AS `c3` from `t4`;
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UPDATE t1 a JOIN t2 b ON a.c1 = b.c1 JOIN v1 vw ON b.c2 = vw.c1 JOIN t3 del ON vw.c2 = del.c2 SET a.c2 = ( SELECT max(t.c1) FROM t3 t, v1 i WHERE del.c2 = t.c2 AND vw.c3 = i.c3 AND t.c3 = 4 ) WHERE a.c2 IS NULL OR a.c2 < '2011-05-01';
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drop view v1;
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drop table t1,t2,t3,t4;
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