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Posted to oak-issues@jackrabbit.apache.org by "Thomas Mueller (JIRA)" <ji...@apache.org> on 2015/05/26 09:25:17 UTC

[jira] [Resolved] (OAK-2839) Without "counter" index, some queries use traversal instead of an index

     [ https://issues.apache.org/jira/browse/OAK-2839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Mueller resolved OAK-2839.
---------------------------------
    Resolution: Duplicate

> Without "counter" index, some queries use traversal instead of an index
> -----------------------------------------------------------------------
>
>                 Key: OAK-2839
>                 URL: https://issues.apache.org/jira/browse/OAK-2839
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: query
>    Affects Versions: 1.2.2
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>             Fix For: 1.3.0
>
>
> The "counter" index maintains an approximate node counter. 
> If this index is available, for some queries that contain a path restriction, traversing is sometimes faster than using the index.
> If the index is not available, typically traversal should not be used. However, it looks like for some reason traversal is used for some queries (I need to investigate in what cases exactly, and why). This need to be fixed.



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