I'm shocked! I retested my fix and it failed the test!!! I applied your 
patch (actually I cut/pasted my change to the class PostgresqlClass and 
added 'pass' to class Class) and it passed the test. I don't understand 
why my patch worked before. ????

I'll replace my .diff file with yours so I apply the correct patch. 
Thanks for taking the time to look at it and fix the problem.

Is there anything more you expect from me for this issue?