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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2504) sorting performance regression
Date Mon, 13 Sep 2010 19:09:34 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12908934#action_12908934
] 

Yonik Seeley commented on LUCENE-2504:
--------------------------------------

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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