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https://issues.apache.org/jira/browse/JENA-1203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15374965#comment-15374965
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ASF subversion and git services commented on JENA-1203:
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Commit 9355372b2c3cc74a6f950ca022290584cf3179d3 in jena's branch
refs/heads/master from [~andy.seaborne]
[ https://git-wip-us.apache.org/repos/asf?p=jena.git;h=9355372 ]
JENA-1203: Another update syntax test
> projecting non grouped variable in subquery is incorrectly allowed
> ------------------------------------------------------------------
>
> Key: JENA-1203
> URL: https://issues.apache.org/jira/browse/JENA-1203
> Project: Apache Jena
> Issue Type: Bug
> Environment: sparql.org's validator
> Reporter: Joshua Taylor
> Assignee: Andy Seaborne
> Priority: Minor
>
> Described in this Stack Overflow answer,
> http://stackoverflow.com/a/38104783/1281433 :
> {code}
> SELECT ?sub ?pred ?obj (count(?obj) as ?count)
> WHERE { ?sub ?pred ?obj .
> } GROUP BY ?sub
> {code}
> is illegal, because there are non-grouped variables in the projection (?pred,
> ?obj). However, when this query appears as a subquery, no syntax error is
> reported, as in:
> {code}
> DELETE { ?sub ?pred ?obj . }
> WHERE {
> {SELECT ?sub ?pred ?obj (count(?obj) as ?count)
> WHERE { ?sub ?pred ?obj .
> } GROUP BY ?sub
> } FILTER(?count < 14)
> }
> {code}
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