[teiid-issues] [JBoss JIRA] (TEIID-3253) Expand allowed order by expressions

Expand allowed order by expressions ----------------------------------- Key: TEIID-3253 URL: https://issues.jboss.org/browse/TEIID-3253 Project: Teiid Issue Type: Enhancement Components: Query Engine Reporter: Steven Hawkins Assignee: Steven Hawkins Fix For: 8.10 with a non-simple query we won't allow derived expressions in the order by such as: select max\(x), y from t group by y order by case when y is null then 0 else y end We treat this ordering as unrelated - however it is expressed in terms of expressions from the select clause. Mondrian will generate queries of this form, which requires a workaround of modifying the dialect to use ansi null ordering.