Help for UID THREAD and SORT optimization

[Alessio Cecchi]

Il 02/10/2018 12:08, Timo Sirainen ha scritto:

> On 2 Oct 2018, at 12.22, Alessio Cecchi <alessio at skye.it 
> <mailto:alessio at skye.it>> wrote:
>>
>> Hello,
>>
>> we are developing a library to show last arrived messages of all 
>> threads in a folder with more than 300k messages.
>>
>> As per the RFC 5256, the IMAP thread command has only the option to 
>> specify the grouping criteria (REFERENCES vs ORDEREDSUBJECT). So we 
>> implemented an algorithm which gets the full UID SORT ordered by date 
>> in reverse order then gets all thread relations and then post process 
>> all outputs to obtain the final result.
>>
> It sounds like what you want is REFS threading, which Dovecot 
> supports, but it didn't make it into official RFC: 
> https://tools.ietf.org/html/draft-gulbrandsen-imap-inthread-05
>
Thanks Timo,

you are the best!

p.s. was a pleasure to meet you and the OX team in Rome last week

-- 
Alessio Cecchi
Postmaster @ http://www.qboxmail.it
https://www.linkedin.com/in/alessice

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