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https://issues.apache.org/jira/browse/LUCENE-2504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12908934#action_12908934
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Yonik Seeley commented on LUCENE-2504:
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bq. silly question, what does the bigString do?
It's actually not currently used by Solr.... but it's basically to use as a
proxy for a null if you want the Comparables returned by value() to match the
sort order the Comparator actually used.
bq. (just wondering if it should be U+10FFFF,U+10FFFF,... now that we use utf-8
order, depending what it does)
Maybe... if it is supposed to be just a string (I know that's the name, but
maybe it should be called bigTerm I guess). All of our terms are currently
UTF8 - but I don't know if that will last?
> sorting performance regression
> ------------------------------
>
> Key: LUCENE-2504
> URL: https://issues.apache.org/jira/browse/LUCENE-2504
> Project: Lucene - Java
> Issue Type: Bug
> Affects Versions: 4.0
> Reporter: Yonik Seeley
> Fix For: 4.0
>
> Attachments: LUCENE-2504.patch, LUCENE-2504.patch, LUCENE-2504.zip
>
>
> sorting can be much slower on trunk than branch_3x
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