(I think you're better off with an update processor script, but...)
The synonym filter supports 2.5 modes:
1. Replace mode
country => continent
2. Expand mode
country, continent
- results in both terms if either is used
2.5) The expand="false" attribute that means treat expand mode as replace
with the first term as the replacement.
continent, country
- would be treated as:
country, continent => continent
The expand="true" attribute is simply the normal expand mode.
Expand mode is really just replacement mode with the terms auto-copied to
the right side of the "=>", so:
country, continent
is equivalent to:
country, continent => country, continent
-- Jack Krupansky
-----Original Message-----
From: Christian Köhler - ZFMK
Sent: Thursday, August 08, 2013 7:10 AM
To: solr-user@lucene.apache.org
Subject: Re: Transform data at index time: country -> continent
Hi,
I have thought about synonyms as well. But wouldn't leave me this with a
field that contains both the original expression and additionally the
continent? e.g. "germany, continent-europe". I am not sure if this might
get in the way at some point.
On the other hand this would enable my to have a single search field,
where the user could search by country or continent. Interesting - I'll
give it a thought.
Thanx
Chris
Am 07.08.2013 17:56, schrieb Walter Underwood:
Good point. Copying to a separate field that applied synonyms could help.
Filtering out the original countries could be tricky. The Javadoc
mentiones a keepOrig flag, but the Solr docs do not. If you could set
keepOrig=false, that would do the trick.
wunder
On Aug 7, 2013, at 5:13 AM, Erick Erickson wrote:
Walter:
Oooh, nice! One could even use a copyField if one wanted to
keep them separate...
Erick
On Tue, Aug 6, 2013 at 12:38 PM, Walter Underwood
<wun...@wunderwood.org>wrote:
Would synonyms help? If you generate the query terms for the continents,
you could do something like this:
usa => continent-na
canada => continent-na
germany => continent-europe
und so weiter.
wunder
On Aug 6, 2013, at 2:18 AM, Christian Köhler - ZFMK wrote:
Am 05.08.2013 15:52, schrieb Jack Krupansky:
You can write a brute force JavaScript script using the
StatelessScript
update processor that hard-codes the mapping.
I'll probably do something like this. Unfortunately I have no influence
on the original db itself, so I have fix this in solr.
Cheers
Chris
--
Zoologisches Forschungsmuseum Alexander Koenig
- Leibniz-Institut für Biodiversität der Tiere -
Adenauerallee 160, 53113 Bonn, Germany
www.zfmk.de
Stiftung des öffentlichen Rechts; Direktor: Prof. J. Wolfgang Wägele
Sitz: Bonn
--
Walter Underwood
wun...@wunderwood.org
--
Christian Köhler
Tel.: 0228 9122-433
Zoologisches Forschungsmuseum Alexander Koenig
Leibniz-Institut für Biodiversität der Tiere
Adenauerallee 160, 53113 Bonn, Germany
www.zfmk.de
Stiftung des öffentlichen Rechts
Direktor: Prof. J. Wolfgang Wägele
Sitz: Bonn
--
Zoologisches Forschungsmuseum Alexander Koenig
- Leibniz-Institut für Biodiversität der Tiere -
Adenauerallee 160, 53113 Bonn, Germany
www.zfmk.de
Stiftung des öffentlichen Rechts; Direktor: Prof. J. Wolfgang Wägele
Sitz: Bonn
