From 8d030a7fe032c6c49b549ba6cd469adcb9435d7b Mon Sep 17 00:00:00 2001 From: David Bremner Date: Tue, 21 Apr 2015 08:47:11 +0900 Subject: [PATCH] Re: quirks with subject searching --- b6/d5af5553ee33c34769f4ff47bf3d61e0f8408f | 84 +++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 b6/d5af5553ee33c34769f4ff47bf3d61e0f8408f diff --git a/b6/d5af5553ee33c34769f4ff47bf3d61e0f8408f b/b6/d5af5553ee33c34769f4ff47bf3d61e0f8408f new file mode 100644 index 000000000..9fd7e6738 --- /dev/null +++ b/b6/d5af5553ee33c34769f4ff47bf3d61e0f8408f @@ -0,0 +1,84 @@ +Return-Path: +X-Original-To: notmuch@notmuchmail.org +Delivered-To: notmuch@notmuchmail.org +Received: from localhost (localhost [127.0.0.1]) + by arlo.cworth.org (Postfix) with ESMTP id 9BCF36DE13EA + for ; Mon, 20 Apr 2015 16:48:21 -0700 (PDT) +X-Virus-Scanned: Debian amavisd-new at cworth.org +X-Spam-Flag: NO +X-Spam-Score: 0.347 +X-Spam-Level: +X-Spam-Status: No, score=0.347 tagged_above=-999 required=5 tests=[AWL=0.347] + autolearn=disabled +Received: from arlo.cworth.org ([127.0.0.1]) + by localhost (arlo.cworth.org [127.0.0.1]) (amavisd-new, port 10024) + with ESMTP id PrefpE2MZOx7 for ; + Mon, 20 Apr 2015 16:48:19 -0700 (PDT) +Received: from mx.xen14.node3324.gplhost.com (gitolite.debian.net + [87.98.215.224]) + by arlo.cworth.org (Postfix) with ESMTPS id 173B66DE1003 + for ; Mon, 20 Apr 2015 16:48:19 -0700 (PDT) +Received: from remotemail by mx.xen14.node3324.gplhost.com with local (Exim + 4.80) (envelope-from ) + id 1YkLPU-0008TM-NW; Mon, 20 Apr 2015 23:47:28 +0000 +Received: (nullmailer pid 30923 invoked by uid 1000); Mon, 20 Apr 2015 + 23:47:11 -0000 +From: David Bremner +To: matt@bubblegen.co.uk, notmuch@notmuchmail.org +Subject: Re: quirks with subject searching +In-Reply-To: <10f88378b37e653bba961be66183d2d5.squirrel@webmail.plus.net> +References: <10f88378b37e653bba961be66183d2d5.squirrel@webmail.plus.net> +User-Agent: Notmuch/0.19+96~g703c8f9 (http://notmuchmail.org) Emacs/24.4.1 + (x86_64-pc-linux-gnu) +Date: Tue, 21 Apr 2015 08:47:11 +0900 +Message-ID: <87383ufjls.fsf@maritornes.cs.unb.ca> +MIME-Version: 1.0 +Content-Type: text/plain +X-BeenThere: notmuch@notmuchmail.org +X-Mailman-Version: 2.1.18 +Precedence: list +List-Id: "Use and development of the notmuch mail system." + +List-Unsubscribe: , + +List-Archive: +List-Post: +List-Help: +List-Subscribe: , + +X-List-Received-Date: Mon, 20 Apr 2015 23:48:21 -0000 + +Matthew Lear writes: +> +> item: foo +> an item: foo +> an item: XYfoo1234 +> an item: XYfoo bar +> +> ... only the first two are found. +> +> Also: +> * notmuch searching for subject:"item: f" gives zero results. + +notmuch (and xapian) are based on searching for words, not +substrings. It only finds subwords through a process of stemming [1]. + +> +> * notmuch searching for subject:"(*foo*)" results in the first two threads +> being found and also a thread with the word footprint in the middle of the +> subject being found (subject is "memory footprint without feature"). + +wildcards [2] are supported only at the end of words, so I suppose the first +* is just ignored. + +> +> Why doesn't notmuch search subject:foo find all four threads, and why +> doesn't notmuch search subject:"item: f" find anything at all? + +Hopefully the above clears it up. This topic comes up fairly often; I'm +not sure if there is something we could add to the (already rather +long) notmuch-search-terms manpage that would help. + + +[1] "Stemming" in notmuch-search-terms (7) +[2] "Wildcards" in notmuch-search-terms (7) -- 2.26.2