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Date: Tue, 28 Mar 2023 22:08:30 +0000
From: Eric Wong <e@80x24.org>
To: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Cc: meta@public-inbox.org
Subject: Re: Cheap way to check for new messages in a thread
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Konstantin Ryabitsev <konstantin@linuxfoundation.org> wrote:
> On Tue, Mar 28, 2023 at 07:45:49PM +0000, Eric Wong wrote:
> > C) index References:/In-Reply-To: so searching `ref:$MSGID'
> >    can work.  This doesn't work for some MUAs and deep
> >    threads, though.
> 
> I think this is a workable approach, but would require a reindex, right?

Yes, it requires a reindex to take effect, which takes ~2 days
on my lore mirror.  The biggest problem is MUAs are likely to
cull References: when threads get too long; so accuracy gets
lost.

Supporting /$MSGID/?q=... doesn't seem like the worst idea,
actually; since I've seen some web forums (phpBB maybe?) have a
"search in thread" function.

thread:{sub-query} is ideal; and I wouldn't rule out doing any
combination of the three (I don't like separating before/after).