On Wed, 2026-06-03 at 11:08 -0700, Jeff Davis wrote:
> RangeVarGetRelidExtended() coordinates three things:
>
> - name lookup
> - lock
> - ACL check
>
> whereas recheckAclAndLock() only coordinates the latter two.
Given that we don't do another name lookup, the object Oid doesn't
change, and it's not obvious why we need a loop in this path.
A sequence like:
Earlier during DDL processing:
0. Name lookup and ACL check (and track ACLs)
When recording dependencies:
1. Lock object
2. Check that it still exists, error if not
3. recheck tracked ACLs, error if failure
could work too, right?
I see why you might want to do the checks while not holding the lock,
but it doesn't seem like a requirement (if the user doesn't have
permissions it should fail quickly and release). In any case, it's
worth a comment explaining why the loop is there.
Regards,
Jeff Davis