[wp-trac] [WordPress Trac] #32165: wp-db.php destructs all the multibyte characters

[WordPress Trac]

#32165: wp-db.php destructs all the multibyte characters
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 Reporter:  kjmtsh        |       Owner:  pento
     Type:  defect (bug)  |      Status:  reopened
 Priority:  high          |   Milestone:  4.2.3
Component:  Database      |     Version:  4.1.2
 Severity:  blocker       |  Resolution:
 Keywords:                |     Focuses:
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Comment (by pento):

 I realised that I was on the right track, but I was missing handling for
 the specific case mentioned in comment:36.

 This particular case has UTF-8 input, `DB_CHARSET` set to `utf8`, but the
 table columns are `ujis`. MySQL can handle the conversion when data is
 inserted, but our sanity checks weren't allowing for this case.

 [attachment:32165.5.diff] also fixes up the couple of tiny things that
 @nbachiyski mentioned, and adds unit tests that fail when the `wp-db.php`
 part of the patch is reverted.

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Ticket URL: <https://core.trac.wordpress.org/ticket/32165#comment:44>
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