David J N Begley <d.begley@xxxxxxxxxx> writes: > My apologies for what may be an obvious answer to others but the documentation > (for v8.1) leaves me concerned (enough not to trust "expected behaviour" of > some commands). You're confusing table-level locks with row-level locks. They are entirely independent beasts. The names of the table-level lock modes are rather unfortunately chosen, I think. regards, tom lane