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https://issues.apache.org/jira/browse/LUCENE-1483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12663379#action_12663379
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Mark Miller commented on LUCENE-1483:
-------------------------------------
What was causing the two policies to miss, even though the individual
comparators passed? Was it more set bottom stuff messing up the transition
between comparators? I couldn't see a transition problem last week. I see some
of you other tweaks, but in terms of comparator transistion, I only see the
readerGeneration rename there offhand (nice change). I actually think the
generation can start with 0 rather than 1, as it normally starts at -1.
I see that bottom optimization made the ordsubord bottomCompare more
complicated as well - I'm surprised I saw everything passing with just a
negative 1 rather than 1.
Very much looking forward to the benchmark results! Wish I had more time to
work on this, thanks for letting me in on so much of it.
- Mark
> Change IndexSearcher multisegment searches to search each individual segment
> using a single HitCollector
> --------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-1483
> URL: https://issues.apache.org/jira/browse/LUCENE-1483
> Project: Lucene - Java
> Issue Type: Improvement
> Affects Versions: 2.9
> Reporter: Mark Miller
> Priority: Minor
> Attachments: LUCENE-1483-partial.patch, LUCENE-1483.patch,
> LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch,
> LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch,
> LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch,
> LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch,
> LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch,
> LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch,
> LUCENE-1483.patch, sortBench.py, sortCollate.py
>
>
> FieldCache and Filters are forced down to a single segment reader, allowing
> for individual segment reloading on reopen.
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