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From Paul Elschot <paul.elsc...@xs4all.nl>
Subject Re: Need help with filtering
Date Wed, 17 Nov 2004 08:19:42 GMT
On Wednesday 17 November 2004 01:20, Edwin Tang wrote:
> Hello,
> 
> I have been using DateFilter to limit my search results to a certain date
> range. I am now asked to replace this filter with one where my search 
results
> have document IDs greater than a given document ID. This document ID is
> assigned during indexing and is a Keyword field.
> 
> I've browsed around the FAQs and archives and see that I can either use
> QueryFilter or BooleanQuery. I've tried both approaches to limit the 
document
> ID range, but am getting the BooleanQuery.TooManyClauses exception in both
> cases. I've also tried bumping max number of clauses via 
setMaxClauseCount(),
> but that number has gotten pretty big.
> 
> Is there another approach to this? ...

Recoding DateFilter to a DocumentIdFilter should be straightforward.

The trick is to use only one document enumerator at a time for all
terms. Document enumerators take buffer space, and that is the
reason why BooleanQuery has an exception for too many clauses.

Regards,
Paul


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