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From "Marcel Reutegger (JIRA)" <j...@apache.org>
Subject [jira] Updated: (JCR-1872) Improve performance of simple path queries
Date Thu, 26 Feb 2009 13:25:01 GMT

     [ https://issues.apache.org/jira/browse/JCR-1872?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marcel Reutegger updated JCR-1872:
----------------------------------

    Fix Version/s: core 1.4.9

Merged changes into 1.4 branch in revision: 748139

> Improve performance of simple path queries
> ------------------------------------------
>
>                 Key: JCR-1872
>                 URL: https://issues.apache.org/jira/browse/JCR-1872
>             Project: Jackrabbit Content Repository
>          Issue Type: Improvement
>          Components: jackrabbit-core
>            Reporter: Marcel Reutegger
>            Priority: Minor
>             Fix For: core 1.4.9, 1.6.0
>
>         Attachments: image001.png
>
>
> Queries with simple path constraints can be quite slow because of the way they are implemented.
The current implementation basically does a hierarchical join with the context nodes and the
set of nodes with the name of the next location step. When the specified path is quite selective
the implementation should   rather resolve the path expression using the item state manager
(similar to how regular paths are resolved in the JCR API).

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