Transaction-level advisory lock unlocking and transaction end

[Saimon Lim <aimon.slim@xxxxxxxxx>]

Hi,

I could not understand on the basis of documentation about transaction-level advisory lock:

> Transaction-level lock requests ... are automatically released at the end of the transaction ...

  So, what order will the use of transactions and unlock the lock?
The transaction would be applied at first and the lock would be unlocked after it or vice versa?
Or any order in this case is not guaranteed?

Thanks a lot for your help.

Saimon