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
ch...@emaildatasource.com
EmailDataSource.com <http://www.emaildatasource.com/> | 5 of the top
20 internet retailers use Email Data Source
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