[jira] [Resolved] (JENA-1327) HAVING clause accepts projected expression

["Andy Seaborne (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JENA-1327?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Seaborne resolved JENA-1327.
---------------------------------
    Resolution: Information Provided
      Assignee: Andy Seaborne

> HAVING clause accepts projected expression
> ------------------------------------------
>
>                 Key: JENA-1327
>                 URL: https://issues.apache.org/jira/browse/JENA-1327
>             Project: Apache Jena
>          Issue Type: Question
>          Components: ARQ
>    Affects Versions: Jena 3.1.1, Jena 3.2.0
>            Reporter: Lorenz Bühmann
>            Assignee: Andy Seaborne
>            Priority: Minor
>
> I'm wondering whether the SPARQL parser is correct with accepting the following query:
> {noformat}
> PREFIX  dbo:  <http://purl.org/dc/elements/1.1/>
> SELECT  (COUNT(?work) AS ?tw) ?author
> WHERE
>   { ?work  dbo:author  ?author }
> GROUP BY ?author
> HAVING ( ?tw > 3 )
> {noformat}
> According to the [specs|https://www.w3.org/TR/sparql11-query/#sparqlHavingClause], I would assume that this is not allowed and one has to use
> {noformat}
> PREFIX  dbo:  <http://purl.org/dc/elements/1.1/>
> SELECT  (COUNT(?work) AS ?tw) ?author
> WHERE
>   { ?work  dbo:author  ?author }
> GROUP BY ?author
> HAVING ( COUNT(?work) > 3 )
> {noformat}
> But as always, I might misunderstand the specs. 



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