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Posted to oak-issues@jackrabbit.apache.org by "Thomas Mueller (JIRA)" <ji...@apache.org> on 2012/12/13 11:48:13 UTC

[jira] [Commented] (OAK-511) Query PropertyIndex that stores the index content as nodes

    [ https://issues.apache.org/jira/browse/OAK-511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13530893#comment-13530893 ] 

Thomas Mueller commented on OAK-511:
------------------------------------

The patch looks good to me!

As an optimization, I believe for unique indexes only one level of child nodes are needed.
                
> Query PropertyIndex that stores the index content as nodes
> ----------------------------------------------------------
>
>                 Key: OAK-511
>                 URL: https://issues.apache.org/jira/browse/OAK-511
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: query
>            Reporter: Alex Parvulescu
>            Assignee: Alex Parvulescu
>         Attachments: OAK-511.patch
>
>
> A current limitation of the PropertyIndex is that is stores the index content as multi value properties. This causes merge conflicts when there are concurrent updates to the index.
> A workaround was found to split the mvp into child-nodes. This alleviates the need for diffing the properties reducing the potential conflict area.

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