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https://issues.apache.org/jira/browse/QPID-8104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16374208#comment-16374208
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ASF subversion and git services commented on QPID-8104:
-------------------------------------------------------

Commit 38819bcac6dc5481357d2c05aaf281e7c83532fe in qpid-broker-j's branch 
refs/heads/master from [~k-wall]
[ https://git-wip-us.apache.org/repos/asf?p=qpid-broker-j.git;h=38819bc ]

QPID-8104: [Broker-J] [Query] Generalise the implementation so that aliases may 
appear within expressions within the order-by clause


> [Broker-J] [Query] [WMC] Ordering connections tables by port column fails 
> with '422 - The orderBy expression at position '0' is unsupported'
> --------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: QPID-8104
>                 URL: https://issues.apache.org/jira/browse/QPID-8104
>             Project: Qpid
>          Issue Type: Bug
>          Components: Broker-J
>            Reporter: Keith Wall
>            Priority: Minor
>             Fix For: qpid-java-broker-7.0.2
>
>
> Ordering the connections table on the virtualhost tab by port ends with error 
> {{422 - The orderBy expression at position '0' is unsupported}}.
> The select clause in question uses an alias {{port.name AS port}}.  In 
> general the ability to express an the order by in terms of column aliases is 
> supported however,  the issue here seems to be that {{port}} is ambiguous and 
> could refer to the {{Collection#port}} attribute or the alias.
> The user of the query API can workaround by using a column number, or specify 
> the column's expression rather than alias.
> I have not looked into this further.



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