On 6.6.2013, at 21.51, Axel Luttgens <axelluttg...@swing.be> wrote:

> Hello,
> 
> 1. Considering a user_query similar to this one:
> 
>       SELECT ... FROM ... WHERE CASE '%s' WHEN 'lmtp' THEN ...
> 
> and issuing following command:
> 
>       doveadm user -x service=lmtp someu...@example.com
> 
> the log shows:
> 
>       SELECT ... FROM ... WHERE CASE 'doveadm' WHEN 'lmtp' THEN ...
> 
> and the query of course fails.

Fixed: http://hg.dovecot.org/dovecot-2.2/rev/c290383e60da

> The same config with Dovecot 2.1.16 yields expected results.

v2.1 worked a bit differently by returning only the userdb info and skipping 
the dovecot.conf settings. Giving -u parameter to doveadm user uses the old 
way, and the service works also there.

> 2. This is more a question.
> 
> Issuing above command first writes this to the log:
> 
>       prefetch(someu...@example.com): passdb didn't return userdb entries, 
> trying the next userdb
> 
> Is there really an attempt to make use of the prefetch database?

Yes.

> If yes, under which circumstances could it succeed?


Never with only a userdb lookup. But it's generic code. I guess the debug log 
entry could be hidden if it disturbs people too much..

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