From: David Bremner <david@tethera.net>
To: Daniel Kahn Gillmor <dkg@fifthhorseman.net>,
Notmuch Mail <notmuch@notmuchmail.org>
Subject: Re: feature request: caching message arrival time
Date: Sat, 01 Jun 2019 11:13:25 -0300 [thread overview]
Message-ID: <874l59qtq2.fsf@tethera.net> (raw)
In-Reply-To: <8736kuhtky.fsf@fifthhorseman.net>
Daniel Kahn Gillmor <dkg@fifthhorseman.net> writes:
> * i don't think we have a way to search properties by range (e.g. the
> way that we can search date ranges). i don't need that feature for
> my use case, but maybe someone will come up with a use case that
> wants it? is there a way to store the datestamp in a way that it can
> be scanned the way that "date" can? or do we already have this and
> i'm just unaware?
you'd need to use a value slot to get (native Xapian) range
searches. To quote the xapian docs
For performance it is important to keep the amount of data stored
in the values to a minimum, since the values for a large number of
documents may be read during the search - the more data that has
to be read, the slower the search will be.
So it's definitely something that would need to be profiled.
Probably the patches that added lastmod: are a good example for someone
wanting to investigate this.
next prev parent reply other threads:[~2019-06-01 14:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-01 3:29 feature request: caching message arrival time Daniel Kahn Gillmor
2019-06-01 14:13 ` David Bremner [this message]
2019-06-01 14:19 ` Ralph Seichter
2019-06-01 15:30 ` Daniel Kahn Gillmor
2019-06-03 8:57 ` Örjan Ekeberg
2019-06-03 13:17 ` Daniel Kahn Gillmor
2019-06-03 14:02 ` Ralph Seichter
2019-06-03 22:16 ` Daniel Kahn Gillmor
2019-06-03 16:02 ` Örjan Ekeberg
2019-06-03 22:21 ` Daniel Kahn Gillmor
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