On 18/02/2013 16:04, Uwe Schindler wrote:
It is not a regression, as per-Document boost were never working correctly. If you want
to boost documents in a consistent way (and make their scores in search results really
using that factor), you should index a DocValues field and use that in a CustomScoreQuery
to boost the results with that docvalues field. In Lucene 4.0 (together with other
changes) we dropped the "old-style", confusing, and incorrect feature.
Well per-Document boost seemed to worked for me with my tests. This new
method your propose sounds more complex and is different to what the
migration guide says so I don't see that as an improvement.
Paul
-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: u...@thetaphi.de
-----Original Message-----
From: Paul Taylor [mailto:paul_t...@fastmail.fm]
Sent: Monday, February 18, 2013 4:54 PM
To: Ian Lea
Cc: java-user@lucene.apache.org
Subject: Re: What is equivalent to Document.setBoost() from Lucene 3.6
inLucene 4.1 ?
On 18/02/2013 13:41, Ian Lea wrote:
See the migration guide:
"If you previously used Document.setBoost, you must now pre-multiply
the document boost into each Field.setBoost. If you have a
multi-valued field, you should do this only for the first Field
instance (ie, subsequent Field instance sharing the same field name
should only include their per-field boost and not the document level
boost) as the boost for multi-valued field instances are multiplied
together by Lucene."
--
Ian.
On Mon, Feb 18, 2013 at 12:17 PM, Paul Taylor <paul_t...@fastmail.fm>
wrote:
What is equivalent to Document.setBoost() from Lucene 3.6 inLucene 4.1
?
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Thanks, so its more difficult now sounds like a regression to me.
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