[wp-trac] [WordPress Trac] #32154: Don't upgrade global tables for utf8mb4

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Fri Jul 3 13:24:31 UTC 2015

#32154: Don't upgrade global tables for utf8mb4
 Reporter:  ocean90       |       Owner:  dd32
     Type:  defect (bug)  |      Status:  closed
 Priority:  normal        |   Milestone:  4.2.3
Component:  Database      |     Version:  4.2
 Severity:  normal        |  Resolution:  fixed
 Keywords:  has-patch     |     Focuses:

Comment (by johnjamesjacoby):

 Thanks for being diligent with this Dion. A few more thoughts:

 * After these changes, the 4.2 branch and trunk have two different
 conditions for when global tables will be upgraded. Is that acceptable?
 * Re: r33059: it looks like the 4.2 branch will still attempt to upgrade
 global tables on each site of each network. Can you confirm that it's not?
 * Re: r33058: How does the new `is_multisite()` check prevent the upgrade
 routine from running twice? The new function is designed to prevent global
 tables from being upgraded multiple times by only running on the main site
 of the main network. Under what conditions were you seeing the global
 table upgrade routine being repeated?

Ticket URL: <https://core.trac.wordpress.org/ticket/32154#comment:18>
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