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From "Damian Steer (JIRA)" <>
Subject [jira] Updated: (JENA-22) OpAsQuery doesn't support OpGroup
Date Thu, 30 Dec 2010 21:27:45 GMT


Damian Steer updated JENA-22:

    Attachment: OpAsQuery_group.patch

This patch implements support for OpGroup in OpAsQuery. It's a little convoluted for two reasons:

 1. Projecting expressions has to be handled right at the end. Project is typical visited
before grouping, and setting project twice for a variable causes an error.
 2. Simple counts involve an internal variable assignment. I've tried to catch this, but it's
not elegant or general.

Tests are included.

> OpAsQuery doesn't support OpGroup
> ---------------------------------
>                 Key: JENA-22
>                 URL:
>             Project: Jena
>          Issue Type: Bug
>          Components: ARQ
>            Reporter: Damian Steer
>         Attachments: OpAsQuery_group.patch
> OpAsQuery can't create some fairly straightforward queries, for example select (count(*)
as ?cs) { ?s ?p ?o }.

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