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From Paul Elschot <>
Subject Re: Sorting Of Index
Date Wed, 17 Nov 2004 17:19:12 GMT
On Wednesday 17 November 2004 17:29, Palmer, Andrew MMI Woking wrote:
> Hi,
> I have been using Lucene now for about 4 years (pre Jakarta) and the
> system has worked fine.  
> One feature that would be nice for my development would be the ability
> to sort the index by a particular field.
> There has been a marked performance improvement when the index is sorted
> in the same order I am extracting the Documents.  I do not use a Query
> as some of the selections would not be easy to describe this way.
> I have been doing the sort in my current code, but it takes a long time
> as it involves adding the records to the end of the index (in the
> correct order) and then deleting any duplicated records.
> This sorting would be very useful to me, and save a fair bit of running
> time.

You could also first collect all doc numbers that need to be retrieved,
sort them, and then retrieve your documents in sorted order.


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