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From Mark Miller <markrmil...@gmail.com>
Subject Re: IndexSearcher.search Behavior
Date Mon, 17 Aug 2009 14:09:27 GMT
Unfortunately, many Query's toString output is not actually parsable by 
QueryParser (though some are).  If you look at the result Query object 
that gets built from the toString output, its likely different than the 
BooleanQuery you are putting together.


-- 
- Mark

http://www.lucidimagination.com



Chris Adams wrote:
> I'm not extremely familiar with Lucene, so I am confused at why the
> following behavior is happening:
>  
> When I build up a BooleanQuery using the Lucene objects (combination of
> RangeQueries, TermQuery, etc.) I am getting a different result than when
> I do a QueryParser.parse(queryString).
>  
> The BooleanQuery that I build up produces the following output:
>
> String queryString = baseQuery.toString();
> Output: +date_received:[20030301 TO 20090913] +type:O24337
> +(site_domains_reversed:moc.rettiwt site_domains_reversed:moc.rettiwt.*)
>
> Hits results = indexSearcher.search(baseQuery);
> Output: results.length = 0
>
> -------------
> However, if I do the following, I get results:
> QueryParser stringParser = new QueryParser(LUCENE_SEARCH_FIELD,
> PuntEmailIndexHelper.getAnalyzer());
> Query parsedQuery = stringParser.parse(baseQuery.toString());
> Hits results = indexSearcher.search(parsedQuery);
> Output: results.length = 3
>
> My question is, why are the results different?? The query in both cases
> is the same, the only difference is that one was "built-up" while the
> other one was "parsed" based upon the .toString() method of the built-up
> query...
>
> Hopefully, this is making sense and someone can explain why the results
> are different.
>
> Thanks for your help.
>
> Chris Adams
> Senior Software Engineer
>
> Email Data Source, Inc.
> 816-448-2045 
> chris@emaildatasource.com
>
> EmailDataSource.com <http://www.emaildatasource.com/>   | 5 of the top
> 20 internet retailers use Email Data Source
>
>
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>   





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