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https://issues.apache.org/jira/browse/JCR-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12560379#action_12560379
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Jukka Zitting commented on JCR-1237:
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I think we should drop the QUERY_XPATH_DOC_ORDER descriptor. It's absence 
doesn't mean that the repository couldn't return query results in document 
order if so configured.

> Change default value for respectDocumentOrder
> ---------------------------------------------
>
>                 Key: JCR-1237
>                 URL: https://issues.apache.org/jira/browse/JCR-1237
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: jackrabbit-core
>            Reporter: Marcel Reutegger
>            Priority: Minor
>             Fix For: 1.5
>
>
> The current default value for the search index configuration parameter 
> respectDocumentOrder is true. Almost all applications are not interested in 
> document order, while this default adds significant overhead to query 
> execution because document order information is present in the index but has 
> to be calculated over the complete result set.
> I propose to change the default value to false and document this change in 
> the 1.4 release notes. If an application relies on document order one can 
> still explicitly set the parameter in the configuration to true.

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