Hi, I noticed that dovecot's MySQL driver doesn't play well with UTF-8 encoded strings. I presume this issue has been around for a while. However, it still fails with the current release candidate 2.2.16-rc1.
I have been using the sieve extdata plugin with a MySQL-backed dict to retrieve
a folder name that is then passed to fileinto:
fileinto :create "${extdata.folder_name_drafts}";
Whenever this dict returned a string with non-7byte characters, a line such as
the following popped up in sieve.log. (This example query should return
"Entwürfe".)
error: folder name specified for fileinto command is not utf-8: Entw?rfe.
Although my MySQL installation is set up to use UTF-8 as the default charset on
every level (config, database, table and field), and the character_set_*
runtime variables all yield the value "utf8", it still seems that the mysql
client library must be instructed to actually use UTF-8 explicitly. Adding the
following statement to driver_mysql_connect() fixes the issue for me:
mysql_options(db->mysql, MYSQL_SET_CHARSET_NAME, "utf8");
I checked this against mysql 5.5.41.
Regards,
Felix
mysql_utf8.patch
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