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From "Thomas Mueller (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-2530) Support IS NULL based property restrictions in the query engine
Date Wed, 18 Feb 2015 13:18:11 GMT

    [ https://issues.apache.org/jira/browse/OAK-2530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14325842#comment-14325842
] 

Thomas Mueller commented on OAK-2530:
-------------------------------------

The change in EquiJoinConditionImpl is needed, otherwise org.apache.jackrabbit.core.query.JoinTest
fails. The original code was wrong, but this was not detected as there was no distinction
between "is null" and "is not null" there.

> Support IS NULL based property restrictions in the query engine
> ---------------------------------------------------------------
>
>                 Key: OAK-2530
>                 URL: https://issues.apache.org/jira/browse/OAK-2530
>             Project: Jackrabbit Oak
>          Issue Type: New Feature
>          Components: query
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>         Attachments: OAK-2530.patch
>
>
> Currently queries involving IS NULL should be supported by the query engine, so that
an index implementation can provide an optimization for it (possibly similar to a function
based index).
> See OAK-2517 for details



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