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Date: Wed, 27 Aug 2008 03:54:32 -0700 (PDT)
From: "Karsten F." <karsten-lucene@fiz-technik.de>
To: java-user@lucene.apache.org
Subject: Re: Index types
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Hi John,

about "integration other index implementation":
Sounds like you need a DBMS with some lucene features.
There was a post about using lucene in Oracle:
http://www.nabble.com/Using-lucene-as-a-database...-good-idea-or-bad-idea--to18703473.html#a18741137
and
http://www.nabble.com/Oracle-and-Lucene-Integration-to7501262.html#a7501262

But normaly for a particular problem there is a solution with lucene
(example: you should not index timestamps in lucene, but you can A) index
year, month and day  or   B) generate your own filter which used the
(cached) timestamp from a stored field  or  C) use solr (which contains
timestamp-range implementation out of the box).

Best regards
   Karsten


John Patterson wrote:
> 
> Hi, I know that Lucene uses an inverted index which makes range queries
> and great-than/less-than type queries very slow for continuous data types
> like times, latitude, etc.  Last time I looked they were converted into
> huge OR queries and so had a maximum clause limit.  
> 
> I was wondering if any work had been done on integrating other index
> implementations?
> 
> Thanks,
> 
> John
> 

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