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Date: Wed, 3 Oct 2012 21:32:30 +0300
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Subject: Re: How to index arbitrary headers?
From: Petri Savolainen <petri@koodaamo.fi>
To: Austin Clements <amdragon@mit.edu>
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Hi,

thanks for your response. I am evaluating notmuch / xapian for building an
application for analyzing in various ways a fairly large number of emails
accumulated over several years. I am afraid the number of headers that
would ultimately need to be indexed is therefore quite a lot larger than
what notmuch currently indexes.

 Petri

2012/10/1 Austin Clements <amdragon@mit.edu>

> Quoth Petri Savolainen on Oct 01 at  3:39 pm:
> >    Hello,
> >    I could not find information anywhere in notmuch docs about what is
> >    actually indexed - specifically, what email headers are indexed and
> >    searchable? If a header is not indexed, does searching for its value
> still
> >    result in a search hit?
> >    It would be nice if one could just provide the list of headers to be
> >    indexed in some configuration file or something.
> >    Thanks,
> >     Petri
>
> notmuch doesn't currently implement this, though it is an
> oft-requested feature.  One (not insurmountable) difficulty is that
> the database would have to be rebuilt if a user-configured list of
> headers changed and there are technical limitations that prevent us
> from simply indexing all headers.  Out of curiosity, what headers are
> you interested in indexing?
>
> The currently indexed headers are described in man
> notmuch-search-terms.
>

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Hi,<div><br></div><div>thanks for your response.=A0I am evaluating notmuch =
/ xapian for building an application for analyzing in various ways a fairly=
 large number of emails accumulated over several years. I am afraid the num=
ber of headers that would ultimately need to be indexed is therefore quite =
a lot larger than what notmuch currently indexes.</div>
<div><br></div><div>=A0Petri</div><div><br><div class=3D"gmail_quote">2012/=
10/1 Austin Clements <span dir=3D"ltr">&lt;<a href=3D"mailto:amdragon@mit.e=
du" target=3D"_blank">amdragon@mit.edu</a>&gt;</span><br><blockquote class=
=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd=
ing-left:1ex">
Quoth Petri Savolainen on Oct 01 at =A03:39 pm:<br>
<div><div class=3D"h5">&gt; =A0 =A0Hello,<br>
&gt; =A0 =A0I could not find information anywhere in notmuch docs about wha=
t is<br>
&gt; =A0 =A0actually indexed - specifically, what email headers are indexed=
 and<br>
&gt; =A0 =A0searchable? If a header is not indexed, does searching for its =
value still<br>
&gt; =A0 =A0result in a search hit?<br>
&gt; =A0 =A0It would be nice if one could just provide the list of headers =
to be<br>
&gt; =A0 =A0indexed in some configuration file or something.<br>
&gt; =A0 =A0Thanks,<br>
&gt; =A0 =A0=A0Petri<br>
<br>
</div></div>notmuch doesn&#39;t currently implement this, though it is an<b=
r>
oft-requested feature. =A0One (not insurmountable) difficulty is that<br>
the database would have to be rebuilt if a user-configured list of<br>
headers changed and there are technical limitations that prevent us<br>
from simply indexing all headers. =A0Out of curiosity, what headers are<br>
you interested in indexing?<br>
<br>
The currently indexed headers are described in man<br>
notmuch-search-terms.<br>
</blockquote></div><br></div>

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