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Posted to notifications@rya.apache.org by "Puja Valiyil (JIRA)" <ji...@apache.org> on 2016/08/04 12:44:20 UTC

[jira] [Closed] (RYA-130) Rya Mongo Fail on Multi Bindingset Joins

     [ https://issues.apache.org/jira/browse/RYA-130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Puja Valiyil  closed RYA-130.
-----------------------------
    Resolution: Fixed

> Rya Mongo Fail on Multi Bindingset Joins
> ----------------------------------------
>
>                 Key: RYA-130
>                 URL: https://issues.apache.org/jira/browse/RYA-130
>             Project: Rya
>          Issue Type: Bug
>          Components: dao
>    Affects Versions: 3.2.9
>            Reporter: Aaron Mihalik
>            Assignee: Aaron Mihalik
>
> Rya Mongo fails on a fairly straightforward query:
> {code}
> DATA = 
>   <u:a> <u:tt> <u:b> .
>   <u:a> <u:ww> <u:x> .
>   <u:a> <u:ww> <u:y> .
> QUERY = 
>   select ?s ?foo where { 
>       ?s <u:ww> ?foo . 
>       ?s <u:tt> <u:b> }
> {code}
> This is a bug in how Mongo Rya solves joins.  The first Statement Pattern will return multiple binding sets, and try to join it with a single statement.  The Mongo Rya Query Engine can't handle this case.
> Full Code at: 
> https://gist.github.com/amihalik/61cf870650b7443389e7be7600f8502c



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