<msalais@msym.fr> writes:
> How a COMMIT statement could be blocked by a lock whatever the kind of the lock could be. COMMIT releases locks. How
couldit be blocked by a lock?!
There could be pre-commit actions (for example, firing deferred
triggers) that need to take locks the transaction didn't already
hold. You've provided no details that would let anyone diagnose
the exact cause, though.
regards, tom lane