[wp-trac] [WordPress Trac] #32314: Database error on update to 4.2.2 from 4.2.1

[WordPress Trac]

#32314: Database error on update to 4.2.2 from 4.2.1
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 Reporter:  milleronic    |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Database      |     Version:  4.2.2
 Severity:  minor         |  Resolution:
 Keywords:                |     Focuses:
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Comment (by mackensen):

 I'm seeing the same issue, both with sites that started in the WordPress
 MU days and a site which was created under 4.2. The errors happen when
 upgrading from 4.2.4 (db version 31536) to 4.3.0 (db version 33055). I'm
 using wp-cli to upgrade the databases. The environment is RHEL 6.5, PHP
 5.3.3, Apache 2.2.15, MySQL 5.1.69. I've compared the output of SHOW INDEX
 for the four tables in question before and after the upgrade and only
 change is that the Cardinality for meta_id and meta_key in wp_sitemeta
 dropped from 100 to 80 (doubt that's relevant). Like @milleronic I haven't
 so far observed any issues with the site itself. Looking back through my
 log files we also generated this error going from 4.1.2 to 4.2.2 and again
 from 4.2.2 to 4.2.4 but simply didn't notice it.

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Ticket URL: <https://core.trac.wordpress.org/ticket/32314#comment:3>
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