Last modified: 2013-05-24 19:36:09 UTC

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Bug 48767 - Support 'utf8mb4' character set in MySQL 5.5 and above
Support 'utf8mb4' character set in MySQL 5.5 and above
Status: NEW
Product: MediaWiki
Classification: Unclassified
Database (Other open bugs)
1.22.0
All All
: Low enhancement (vote)
: ---
Assigned To: Nobody - You can work on this!
:
Depends on:
Blocks:
  Show dependency tree / graph
 
Reported: 2013-05-24 08:04 UTC by Kevin Israel (PleaseStand)
Modified: 2013-05-24 19:36 UTC (History)
1 user (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---

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Description Kevin Israel (PleaseStand) 2013-05-24 08:04:11 UTC 
The 'utf8' character set in MySQL does not support characters above
U+FFFF, which take up four bytes. (An example of such a character is
U+1D49E MATHEMATICAL SCRIPT CAPITAL C (
Comment 1 Kevin Israel (PleaseStand) 2013-05-24 08:05:24 UTC 
(In reply to comment #0)
> The 'utf8' character set in MySQL does not support characters above
> U+FFFF, which take up four bytes. (An example of such a character is
> U+1D49E MATHEMATICAL SCRIPT CAPITAL C (

Well, that's broken. Remainder of description:

), encoded as F0 9D 92 9E.)

Yet the web installer so prominently offers the "UTF-8" option, despite
this serious limitation. Perhaps MediaWiki should support the 'utf8mb4'
character set in MySQL 5.5 and above, in which that option is available.

Mailing list discussion that prompted me to file this bug:
http://lists.wikimedia.org/pipermail/wikitech-l/2013-May/069552.html
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