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      Description

      Map SPARQL UNION operators onto the native bigdata rule execution model. Each argument in the UNION is mapped onto its own rule and the rules are run in parallel against a shared query buffer.

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        mikepersonick mikepersonick added a comment -

        We have limited support for UNIONs. Only top-level UNIONs currently supported. In order to support embedded UNIONs we need to extend the native rule model. So:

        Union

        Join

        Join

        runs natively. But

        Join

        Union

        Union

        does not.

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        mikepersonick mikepersonick added a comment - We have limited support for UNIONs. Only top-level UNIONs currently supported. In order to support embedded UNIONs we need to extend the native rule model. So: Union Join Join runs natively. But Join Union Union does not.

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          • Assignee:
            mikepersonick mikepersonick
            Reporter:
            bryanthompson bryanthompson
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              Updated:
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