Yes, you are correct. When we call our oracle database we have to use the -dbn option, Example:
db_1row -dbn xx1 check_closed { SELECT ... }
When we query postgres we never use the -dbn parameter:
set asof_date [db_string noxql {SELECT current_date;}]
I believe we have seen it happen on these simple types of queries before. But again it has been hard to debug
