Hi Grant,
Thanks for your help.
BoostingTermQuery uses reader.termPositions(term) to get the term
position. In the Term, we cannot put any payload value to find the
result documents. What I want is
Find out all documents which have a specific payload value in a specific
term. We does not care about the value of the term.
The reason is we don't want to store the binary information as a value
so that we probably can accelerate the query performance by using
payload. I am not sure this is a good reason to do in this way.
Thanks,
Li
-----Original Message-----
From: Grant Ingersoll [mailto:[EMAIL PROTECTED]
Sent: Monday, April 21, 2008 9:57 PM
To: java-user@lucene.apache.org
Subject: Re: how to query against payload
On Apr 21, 2008, at 5:34 AM, [EMAIL PROTECTED] wrote:
> Hi,
>
> I want to use payload to store some kind of object id
> which is an arbitrary byte array for better performance. But I do need
> some kind of function like searching against payload value.
>
Have a look at the BoostingTermQuery. If you need more than that, you
could create some new queries using that as a model.
>
>
> Also when the hits are available, how to get the payload of a specific
> term from a document without set the field as stored? Currently I
> found
> the only available interface is IndexReader.termPosition(new Term()).
> Looks we need to search again.
https://issues.apache.org/jira/browse/LUCENE-1001. Note, however,
that the patch there is not going to work. If you can help out on it,
that would be great.
>
>
> I've seen there will be per document payload. When will it be ready?
>
>
>
> Thanks,
>
> Fang, Li
>
>
>
--------------------------
Grant Ingersoll
Lucene Helpful Hints:
http://wiki.apache.org/lucene-java/BasicsOfPerformance
http://wiki.apache.org/lucene-java/LuceneFAQ
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