[mythtv-commits] Ticket #5364: Adapting DB to utf8 can be done without loosing non-ascii characters

[MythTV]

#5364: Adapting DB to utf8 can be done without loosing non-ascii characters
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 Reporter:  jehon07 at yahoo.fr  |       Owner:  awithers
     Type:  enhancement       |      Status:  new     
 Priority:  major             |   Milestone:  0.22    
Component:  mythvideo         |     Version:  head    
 Severity:  high              |     Mlocked:  0       
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 You are adapting DB so that columns become real "utf8" data. Great!

 But if you change them directly "alter x modify coly character set utf8",
 mysql will translate the content (wich is in utf8, but known by mysql as
 latin1) from latin1 to utf8.

 This can be avoided:
 1. Alter x modify coly blob
 2. Alter x modify coly varchar(128) character set utf8

 This can add some nasty \0 character at the end, thus a third command can
 be added:
 3. upgrade x set coly = replace(coly, "\0", "")

 This is explained in
 http://dev.mysql.com/doc/refman/5.0/en/charset-conversion.html

 Thank you for your great job in mythtv!
 I hope this small info I give here can help.

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Ticket URL: <http://svn.mythtv.org/trac/ticket/5364>
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