Hi ikramBo,
Can you elaborate on what you are looking for? Your title states that you are getting different values, while your description talks about a performance difference. Can you confirm what your actual concern is?
If the issue is different values, do we have an example? As both come from two separate schemas, I wouldn't expect the data to be the same.
Additionally, if it is performance-related, can you detail what you mean by a "delay between <%= delivery.id %> and <%= message.delivery.id %>"? Are you talking about querying both tables separately, and does one take longer to return, or are you talking about some level of delay when one schema is linked to the other?
Regards,
Craig