Join sort order altered inappropriately --------------------------------------- Key: TEIID-3183 URL: https://issues.jboss.org/browse/TEIID-3183 Project: Teiid Issue Type: Bug Components: Query Engine Affects Versions: 8.4 Reporter: Steven Hawkins Assignee: Steven Hawkins Priority: Critical Fix For: 8.7.1, 8.9 If a merge or other join configuration is chosen and there is a subquery affecting only a side of the join that is to be sorted such that the subquery can be rewritten as a semi/anti-semi join, then the subquery rewrite will alter the intended sort order of the original join. This can result in incorrect results. An example query: select pm2.g2.e1 from pm1.g1 inner join pm2.g2 on (pm1.g1.e1 = pm2.g2.e1) where pm2.g2.e2 in /*+ mj */ (select count(e2) FROM pm1.g2 group by e1 having e1 < pm2.g2.e3)