Robert Muir created LUCENE-5229:
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Summary: remove Collector specializations
Key: LUCENE-5229
URL: https://issues.apache.org/jira/browse/LUCENE-5229
Project: Lucene - Core
Issue Type: Bug
Reporter: Robert Muir
Assignee: Robert Muir
There are too many collector specializations (i think 16 or 18?) and too many
crazy defaults like returning NaN scores to the user by default in
indexsearcher.
this confuses hotspot (I will ignore any benchmarks posted here where only one
type of sort is running thru the JVM, thats unrealistic), and confuses users
with stuff like NaN scores coming back by default.
I have two concerete suggestions:
* nuke doMaxScores. its implicit from doScores. This is just over the top. This
should also halve the collectors.
* change doScores to true by default in indexsearcher. since shai was confused
by the NaNs by default, and he added this stuff to lucene, that says
*everything* about how wrong this default is. Someone who *does* understand
what it does can simply pass false.
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