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From "Manoj Kr. Sheoran" <manoj.ku...@daffodildb.com>
Subject Search on multiple columns
Date Tue, 15 Nov 2005 11:21:12 GMT
Hi,
Is there any way to search on multiple columns.

i.e.
Query qry = QueryParser.parse(line,"contents",anlz);

In above statement I can search on contents field only but I would like to
search data on two Fields at a time. Is there any way to do it ?



Regards,

Manoj





----- Original Message ----- 
From: "Vanlerberghe, Luc" <Luc.Vanlerberghe@bvdep.com>
To: <java-user@lucene.apache.org>
Sent: Tuesday, November 15, 2005 3:26 PM
Subject: RE: Memory Usage


> Since an IndexReader can't know what indexInterval was used and that
> each segment could have a different indexInterval, wouldn't it be better
> too have a parameter that sets an average indexInterval that should be
> used?
> The fraction you talk about could then be calculated by the IndexReader
> per segment.
>
> Or the other way around: the maximum number of index entries that should
> be stored.  The IndexReader can check if all indexes will fit, and if
> not, calculate how many should be skipped per segment to get a good
> coverage.
>
> Luc
>
> -----Original Message-----
> From: Doug Cutting [mailto:cutting@apache.org]
> Sent: maandag 14 november 2005 18:19
> To: java-user@lucene.apache.org
> Subject: Re: Memory Usage
>
> Marvin Humphrey wrote:
> > You *can't* set it on the reader end.  If you could set it, the
> reader
> > would get out of sync and break.  The value is set per-segment  at
> write
> > time, and the reader has to be able to adapt on the fly.
>
> It would actually not be too hard to change things so that there was
> such a parameter that could be set on an IndexReader.  It would
> determine the fraction of entries in the .tii file that are kept in RAM.
>
>   So if the parameter were, e.g., 10, then only every tenth entry in the
>
> .tii file would be kept in RAM, equivalent to 10x the indexInterval
> used.
>
> Doug
>
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