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PT-1574 Improved detection of nullable keys

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Carlos Salguero
2018-07-27 13:34:19 -03:00
parent 909125faf9
commit 2b45f192b0
3 changed files with 98 additions and 3 deletions
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22
t/pt-online-schema-change/samples/pt-1574.sql Normal file
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DROP DATABASE IF EXISTS test;
CREATE DATABASE test;
USE test;
CREATE TABLE `test`.`t1` (
`id` int(11) DEFAULT NULL,
`site_name` varchar(25) DEFAULT NULL,
`last_update` datetime DEFAULT NULL,
UNIQUE KEY `idx_id` (`id`),
KEY `idx_last_update` (`last_update`),
KEY `idx_site_name` (`site_name`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO `t1` VALUES
(1385108873,'Carolyn Ryan','2018-01-13 17:05:24'),
(2140660022,'Patricia Garza','2018-01-13 19:07:51'),
(1473481373,'Rachel George','2017-12-05 21:09:53'),
(1394124308,'Mrs. Ms. Miss Janet Dixon','2017-10-28 07:07:41'),
(1978918050,'Louis Gray Jr. Sr. I II I','2017-11-01 22:10:39'),
(1275940242,'Lois Spencer','2018-02-22 01:01:38'),
(NULL,NULL,NULL),
(NULL,NULL,NULL);