My friend and I discuss a catalog problem before I was onsite and this discussion came up today about patching the Linux environment with automatically updates postgress databases but does not update oracle. The Oracle services must be taken off line. It occurs to me that the disconnect would cause such a problem once the data has been passed from Oracle to Greenplum.
":But you need to know how to debug catalog issues and things like that--what we've been having problems with. We've had a few people leave when asked to do something (practically) impossible with the Greenplum"

Do you agree??