Not null constraint is not checked on temp table update ------------------------------------------------------- Key: TEIID-4483 URL: https://issues.jboss.org/browse/TEIID-4483 Project: Teiid Issue Type: Bug Components: Query Engine Reporter: Steven Hawkins Assignee: Steven Hawkins Fix For: 9.1, 9.0.5 An update such as: update x set e1 = (select null) will still be allowed to happen even if e1 is not null, since the not null validation is only being checked at for literal values.