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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-1592) fix or deprecate TermsEnum.skipTo
Date Thu, 11 Jun 2009 09:21:07 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-1592?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael McCandless updated LUCENE-1592:
---------------------------------------

    Fix Version/s: 2.9
         Assignee: Uwe Schindler

OK moving back to 2.9 & assigning to you Uwe!

> fix or deprecate TermsEnum.skipTo
> ---------------------------------
>
>                 Key: LUCENE-1592
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1592
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>            Reporter: Michael McCandless
>            Assignee: Uwe Schindler
>            Priority: Minor
>             Fix For: 2.9
>
>
> This method is a trap: it looks legitimate but it has hideously poor performance (simple
linear scan implemented in the TermsEnum base class since none of the concrete impls override
it with a more efficient implementation).
> The least we should do for 2.9 is deprecate the method with  a strong warning about its
performance.
> See here for background: http://www.lucidimagination.com/search/document/77dc4f8e893d3cf3/possible_terminfosreader_speedup
> And, here for historical context: 
> http://www.lucidimagination.com/search/document/88f1b95b404ebf16/remove_termenum_skipto_term_target

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