[teiid-issues] [JBoss JIRA] Created: (TEIID-939) MySQL nested set query pushdown failure

Thu Jan 21 21:21:19 EST 2010

MySQL nested set query pushdown failure
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                 Key: TEIID-939
                 URL: https://jira.jboss.org/jira/browse/TEIID-939
             Project: Teiid
          Issue Type: Bug
          Components: JDBC Connector
    Affects Versions: 6.0.0
            Reporter: Steven Hawkins
            Assignee: Steven Hawkins
             Fix For: 7.0

By default our translator is adding parens around nested set queries, this is not supported by MySQL.  The parens can safely be dropped as long as both the parent and the child are the same set operation (union, or union all).  The only problem for MySQL is that you cannot left nest a union all under a union.

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