On Thursday, November 13, 2003, at 04:07 PM, Jie Yang wrote:
Erik, Just to make sure I understand you right, In an
example query:  ZipCode:CA10927 AND Gender:Male

Are we talking about that query being entered by the user and you handing it just like that to QueryParser? If so, then QueryFilter won't help.


Sure I know ZipCode returns fewer results, do you mean
I build a filter

QueryFilter x = new QueryFilter("ZipCode", "CA10927",
..);

Well, that is not quite the right API, but something like this:


Query maleQuery = new TermQuery(new Term("Gender", "Male"));
Filter filter = new QueryFilter(maleQuery);
Hits hits = searcher.search(new TermQuery("ZipCode","CA10927"), filter);


Keep in mind all that Doug has said on this topic as well. In this case, it probably won't be any faster than a single query, maybe even slower. But if you use the same instance of the filter for future searches there will certainly be a benefit.

Erik


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