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Posted to oak-issues@jackrabbit.apache.org by "Thomas Mueller (JIRA)" <ji...@apache.org> on 2016/03/01 14:33:18 UTC

[jira] [Commented] (OAK-2943) Support measure for union queries

    [ https://issues.apache.org/jira/browse/OAK-2943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15173749#comment-15173749 ] 

Thomas Mueller commented on OAK-2943:
-------------------------------------

By the way, this also affects "explain", not just "explain measure". Before the patch, "explain" for an XPath query didn't take into account any optimizations, such as converting "or" to a union.

> Support measure for union queries
> ---------------------------------
>
>                 Key: OAK-2943
>                 URL: https://issues.apache.org/jira/browse/OAK-2943
>             Project: Jackrabbit Oak
>          Issue Type: Sub-task
>          Components: query
>            Reporter: Amit Jain
>            Assignee: Amit Jain
>             Fix For: 1.3.1
>
>         Attachments: OAK-2943.patch
>
>
> Currently, the {{measure}} for union queries does not take into consideration the optimizations done by the query engine and returns the scan count for each individual query.
> It would be better if the optimizations and the actual iterations on the underlying left/right queries are taken into account.



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