ServiceStack/ServiceStack.OrmLite — pull request #149 by dylanvdmerwe (2013-02-03 14:57:20+00:00)
Title: Expression NullReferenceException fix.

When performing a method call in a Select statement, the
SqlExpressionVisitor checks if it is a Sql, Array or Column method call.
However a NullReferenceException is thrown when trying to do this:
db.Select(q=>q.DateStamp < DateTime.Now.AddMonths(-1));

Now the above call is properly expressed.