user/dev discussion of public-inbox itself
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From: Eric Wong <>
Subject: [PATCH] search: disable phrase searching, for now
Date: Thu, 16 May 2019 03:47:01 +0000
Message-ID: <> (raw)

There probably needs to be an option to enable this
independently of indexlevel; but for now this is
the safest option.

And, as I discovered during the development of the
indexlevel option, Xapian does a pretty good job of
finding phrases without position data, anyways.
 lib/PublicInbox/ | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/PublicInbox/ b/lib/PublicInbox/
index 090d998..bb4bd45 100644
--- a/lib/PublicInbox/
+++ b/lib/PublicInbox/
@@ -45,7 +45,11 @@ use constant {
 	# n.b. FLAG_PURE_NOT is expensive not suitable for a public website
 	# as it could become a denial-of-service vector
+	#
+	# FLAG_PHRASE also seems to cause performance problems sometimes.
+	# TODO: make this an option, maybe?
+	# or make indexlevel=medium as default
 my %bool_pfx_external = (

                 reply index

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user/dev discussion of public-inbox itself

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