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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-2527) FieldCache.getTermsIndex should cache fasterButMoreRAM=true|false to the same cache key
Date Thu, 09 May 2013 23:06:06 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2527?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Uwe Schindler updated LUCENE-2527:
----------------------------------

    Fix Version/s:     (was: 4.3)
                   4.4
    
> FieldCache.getTermsIndex should cache fasterButMoreRAM=true|false to the same cache key
> ---------------------------------------------------------------------------------------
>
>                 Key: LUCENE-2527
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2527
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: core/search
>    Affects Versions: 4.0-ALPHA
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: 4.4
>
>
> When we cutover FieldCache to use shared byte[] blocks, we added the boolean fasterButMoreRAM
option, so you could tradeoff time/space.
> It defaults to true.
> The thinking is that an expert user, who wants to use false, could pre-populate FieldCache
by loading the field with false, and then later when sorting on that field it'd use that same
entry.
> But there's a bug -- when sorting, it then loads a 2nd entry with "true".  This is because
the Entry.custom in FieldCache participates in equals/hashCode.

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