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From Ian Lea <ian....@gmail.com>
Subject Re: Selective Output fields in Search Result. Lucene 5.5.0
Date Mon, 16 May 2016 13:27:48 GMT
Would
http://lucene.apache.org/core/5_5_0/core/org/apache/lucene/index/IndexReader.html#document(int,%20java.util.Set)
be what you are looking for?


--
Ian.


On Mon, May 16, 2016 at 1:39 PM, <Ankit.Murarka@ril.com> wrote:

> Hello,
>
> I am storing close to 100 fields in a single document which is being
> indexed. There are million such documents. Lucene version is 5.5.0
>
> During search, I wish to get only 1 field out of these 100 fields as a
> result. The conventional approach is to get the required hits and get the
> selected field by iterating over each Document.
>
> Problem with conventional approach is, the document so retrieved contains
> all the fields bloating my memory. (i.e. I get 100 fields in each document
> whereas I should get only 1 field to save on resource and memory)
>
> I would like to have only 1 particular field in the output document.
>
> Is there any approach for this ? I have looked into the api docs and stuff
> but could not find anything related to this.
>
> Appreciate your guidance. Thanks in advance.
>
> Regards,
> Ankit
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