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From Alan Woodward <>
Subject Re: ignore score and weight in lucene search
Date Thu, 30 Jul 2015 10:49:03 GMT
What version of lucene are you using?  From Lucene 5.1 you can tell queries to not report scores,
which will give you the speedup you require here.

Alan Woodward

On 30 Jul 2015, at 05:22, 丁儒 wrote:

> It seems that ConstantScoreQuery use the Weight and Score of  the Query it wrapperd,
like TermWeight and TermScorer , so it can't speed up the search, because the weight and score
is still calculated. Maybe i make it wrong, but i did some test, the search time of ‘ new
ConstantScoreQuery(new TermQuery)’ is the same as 'new TermQuery'.
> At 2015-07-29 21:56:22, "Jack Krupansky" <> wrote:
>> ConstantScoreQuery is the proper approach. What specific failure did you
>> encounter?
>> -- Jack Krupansky
>> On Wed, Jul 29, 2015 at 7:09 AM, 丁儒 <> wrote:
>>> Hi, all
>>>    Currently i'm using lucene. But i don't care the score and weight, i
>>> just need the documents meets the query. I tried some way to ignore the
>>> score, like rewrite TermQury, disable the TermWeight and TermScore, but
>>> there are a lot of queries, and this is  incompatible with QueryParser.
>>> Also i tried ConstantScoreQuery and tried to rewirte ConstantScoreQuery,
>>> but failed. So is there any way to ignore soce in search to speed up the
>>> search.
>>> Thank you!!!

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