feature request: caching message arrival time
david at tethera.net
Sat Jun 1 07:13:25 PDT 2019
Daniel Kahn Gillmor <dkg at 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.
More information about the notmuch