Hi Uwe,

meanwhile I got Trie working in indexing and querying. I haven't tried yet with the large document collection but with my small test setup it works well.

Does Trie also work with ranges from negative to positive numbers?

Thank you very much for your support.

Best

   Niels

Uwe Schindler schrieb:
Hallo Niels,

Nice to hear. The Trie package will be included into Lucene 2.9, maybe it
will move directly to lucene-core and may change its API or it will stay in
Contrib-Queries, but it will be released soon.

Uwe

-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: u...@thetaphi.de

-----Original Message-----
From: Niels Ott [mailto:n...@sfs.uni-tuebingen.de]
Sent: Saturday, March 14, 2009 10:40 PM
To: java-user@lucene.apache.org
Subject: Re: AW: Re: Speeding up RangeQueries?

Hello Uwe,

thank you for clarifying things. I just checked the latest SVN revision
of Lucene and apparently everything still works as it should with my
system. Now I have to check if Trie does the job for me.

I hope that Lucene 3 will include this fancy Trie package.

Best,

   Niels


Uwe Schindler schrieb:
Hello Niels,

You cannot use the trie package with current lucene stable. To
compile, you must also apply LUCENE-1478 to the core. Another option
is to checkout trie and remove the SortField and static FieldCache
parsers from TrieUtils. I am the developer of trie and I use it with
trunk lucene on www.pangaea.de.

Uwe

Mit einem Mobiltelefon von Sony Ericsson gesendet


---- Originalnachricht ---- Von: Niels Ott
<n...@sfs.uni-tuebingen.de> Gesendet: An: java-user@lucene.apache.org
 Betreff: Re: Speeding up RangeQueries?

Hi Paul,

Paul Elschot schrieb:
Performance normally mostly depends on the number of terms indexed
within the queried range. To limit the number of terms used during
a range search, have a look here for more info on the new
TrieRangeQuery:
http://wiki.apache.org/lucene-java/SearchNumericalFields
This looks very promising.

As far as I understand this is only available from the unreleased
development version, right? How safe is this version for use?

Is it possible to use only the org.apache.lucene.search.trie package
 from there together with the old and stable Lucene?

Best

Niels


--
Niels Ott
Computational Linguist (B.A.)
http://www.drni.de/niels/

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Niels Ott
Computational Linguist (B.A.)
http://www.drni.de/niels/

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