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Posted to oak-issues@jackrabbit.apache.org by "Thomas Mueller (JIRA)" <ji...@apache.org> on 2013/05/16 15:21:16 UTC

[jira] [Resolved] (OAK-824) Query engine: automatic expansion of "x=1 or x=2" to "(x is not null) and (x=1 or x=2)"

     [ https://issues.apache.org/jira/browse/OAK-824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Mueller resolved OAK-824.
--------------------------------

    Resolution: Fixed
    
> Query engine: automatic expansion of "x=1 or x=2" to "(x is not null) and (x=1 or x=2)"
> ---------------------------------------------------------------------------------------
>
>                 Key: OAK-824
>                 URL: https://issues.apache.org/jira/browse/OAK-824
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: core, query
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>
> Queries with conditions of the type "x=1 or x=2" currently don't use an index. An index (on property existance) could be used if the condition is automatically expanded to "(x is not null) and (x=1 or x=2)". This should be relatively easy to implement in the query engine (I hope).

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