[teiid-issues] [JBoss JIRA] (TEIID-4833) Oracle JDBC Connector: Support for LISTAGG

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-4833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13388119#comment-13388119 ] 

Steven Hawkins commented on TEIID-4833:
---------------------------------------

LISTAGG since it returns an oracle varchar2 is not quite a replacement for stringagg, which returns a clob.  Listagg has explicit overflow handling in the event that 4000 bytes are exceeded.

As a quick solution I'll expose a listagg aggregate from the oracle translator.  It will use a more standard syntax though:

listagg (val, delim) order by ...

And the translator will handle adding the within group syntax.

> Oracle JDBC Connector: Support for LISTAGG
> ------------------------------------------
>
>                 Key: TEIID-4833
>                 URL: https://issues.jboss.org/browse/TEIID-4833
>             Project: Teiid
>          Issue Type: Feature Request
>          Components: JDBC Connector
>            Reporter: John Rodrigues
>            Assignee: Steven Hawkins
>
> Add support for the Oracle LISTAGG function to the Teiid Oracle connector.
> Refer to this discussion for context: [OracleConnector LISTAGG function|https://developer.jboss.org/message/970282]



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