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From Robert Muir <>
Subject Re: Lucene's default settings & back compatibility
Date Tue, 19 May 2009 03:31:18 GMT
I am curious about this, do you think its a better default because it avoids
the max boolean clauses problem? or because for a lot of these scoring
doesn't make much sense anyway?

I ran tests on a pretty big index, you pay a price for the constant
score/filter method. Its slower for the common case searches, it only starts
to win for queries that return > 10% or so the index, but its significantly
slower for narrow queries...

I'm just trying to imagine a case where queries that return > 10% or so of
the index are actually the common/default...?

>  * Constant score rewrite ought to be the default for most multi-term
>    queries

Robert Muir

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