Hi all so one problem is closed, and we can start speaking about ASSERT statement.
I propose a (old) syntax ASSERT expr [, message] possible questions: * should be assertions globally enabled/disabled? - I have no personal preference in this question. * can be ASSERT exception handled ? - I prefer this be unhandled exception - like query_canceled because It should not be masked by plpgsql EXCEPTION WHEN OTHERS ... Ideas, notices? Regards Pavel