Re: Slow IMAP SORT

There is a old bug that we are aware. Maybe we look at it again.

Aki

On 16/08/2022 16:21 EEST Aleksander Machniak alec@alec.pl wrote:

On 15.08.2022 11:43, Ewald Dieterich wrote:

...

The following IMAP SORT with 2 sort criteria is very slow on an mdbox mailbox with lots of mails (more than 10,000) and an empty cache:

. SORT (ARRIVAL DATE) UTF-8 ALL

Each mail is opened when the SORT is executed, which is slow, given the number of mails in the mailbox.

There might be a bug, but "SORT (ARRIVAL DATE)" itself does not make much sense. It means "sort by arrival timestamp and for all messages with identical arrival timestamp use Date header instead".

-- Aleksander Machniak Kolab Groupware Developer [https://kolab.org] Roundcube Webmail Developer [https://roundcube.net]

PGP: 19359DC1 # Blog: https://kolabian.wordpress.com