Re: [imap5] ERASE command as part of MOVE
Timo Sirainen <tss@iki.fi> Fri, 01 June 2012 22:28 UTC
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From: Timo Sirainen <tss@iki.fi>
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Date: Sat, 02 Jun 2012 01:27:58 +0300
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To: Bron Gondwana <brong@fastmail.fm>
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Cc: Arnt Gulbrandsen <arnt@gulbrandsen.priv.no>, imap5@ietf.org
Subject: Re: [imap5] ERASE command as part of MOVE
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On 2.6.2012, at 1.23, Bron Gondwana wrote:
> This probably shits the purists as much as anything else.
> But I can tell you for sure that the FastMail web interface
> does its "Delete Permanently" as:
>
> $Res = $Self->store($Uids, "+flags", "(\\seen \\deleted)")
> && $Self->uidexpunge($Uids)
> && $Self->refresh_count('');
>
> Which is an extra roundtrip to the server and an extra lock and
> parse of the mailbox index.
It doesn't need to be an extra roundtrip. You can run uidexpunge even if store fails and it doesn't do anything bad. By avoiding the extra roundtrip it is possible for the server to optimize the STORE+EXPUNGE into equivalent of ERASE. (Dovecot does halfway that - it for example doesn't rename maildir files on STORE stage, just unlinks them on EXPUNGE.)
- [imap5] ERASE command as part of MOVE Bron Gondwana
- Re: [imap5] ERASE command as part of MOVE Timo Sirainen
- Re: [imap5] ERASE command as part of MOVE Barry Leiba
- Re: [imap5] ERASE command as part of MOVE Bron Gondwana
- Re: [imap5] ERASE command as part of MOVE Bron Gondwana
- Re: [imap5] ERASE command as part of MOVE Bron Gondwana
- Re: [imap5] ERASE command as part of MOVE Arnt Gulbrandsen
- Re: [imap5] ERASE command as part of MOVE Bron Gondwana
- Re: [imap5] ERASE command as part of MOVE Timo Sirainen