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From markharw00d <markharw...@yahoo.co.uk>
Subject Re: How to combine filter in Lucene 2.4?
Date Sun, 09 Nov 2008 10:56:37 GMT
 >>this can't be nearly as fast as OpenBitSet.intersect() or union, 
respectively, can it?

I had a similar concern but it doesn't seem that bad:

   
https://issues.apache.org/jira/browse/LUCENE-1187?focusedCommentId=12596546#action_12596546

The above test showed a slight improvement using bitset.or when it was 
recognised both docidsets were OpenBitSets. This optimisation is now in 
BooleanFilter.

Cheers
Mark


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