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Posted to oak-issues@jackrabbit.apache.org by "Amit Jain (JIRA)" <ji...@apache.org> on 2014/09/30 09:43:10 UTC

[jira] [Updated] (OAK-2134) Lucene: not using the path restriction can speed up queries

     [ https://issues.apache.org/jira/browse/OAK-2134?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amit Jain updated OAK-2134:
---------------------------
    Fix Version/s:     (was: 1.0.7)
                       (was: 1.1)
                   1.1.0

> Lucene: not using the path restriction can speed up queries
> -----------------------------------------------------------
>
>                 Key: OAK-2134
>                 URL: https://issues.apache.org/jira/browse/OAK-2134
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>             Fix For: 1.1.0
>
>
> Currently, the Oak Lucene index uses the path restriction in the hope that queries can be faster. However, I found that not using the path restriction is better (much better) in many cases. The following queries were run:
> {noformat}
> :fulltext:test
> +:fulltext:test +:path:/path/prefix/*
> {noformat}
> A workaround is to change the query, by removing the path restriction, and adding a 'like' conditions, as follows (for XPath):
> {noformat}
> ... and jcr:like(@jcr:path, '/path/prefix/%')
> {noformat}



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