> Ran some informal tests.  Eric, you are definitely right, it is
> faster to search again, assuming you don't already have an
> advanced caching system in place.   The other tradeoff to
> consider is the size of the sort cache, which the docs say is:
> 4 * IndexReader.maxDoc() * (# of different fields actually used
> to sort).  As for simplicity, Tim's sorting code is the way to
> go as it is already native to Lucene, saving developer's from
> having to write their own.
> 
> On a side note, it was a real eye opener to see the value of a
> tightly written comparator function in sorting performance.
> One should be careful about how they implement a comparator.

Thanks Eric for the tips and thanks Grant for the informal empirical...

Regards,
RBP



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