The issue described in the JIRA comment by jstastny [1] still persists in 6.4. It appears that commit a491b48 mentioned by jolee lower in the comment thread [2] has not been backported to the 6.4 branch. [1] https://issues.jboss.org/browse/TEIID-4875?focusedCommentId=13409841&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13409841 [2] https://issues.jboss.org/browse/TEIID-4875?focusedCommentId=13417200&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13417200