On Dec 2, 2015, at 9:25 AM, Bill Moran <wmoran(at)potentialtech(dot)com> wrote:
> No. See the section on row level locks here:
> http://www.postgresql.org/docs/9.4/static/explicit-locking.html
That wasn't quite my question. I'm familiar with the row-level locking and the locking messages in general, but this message implies there is such a thing as an AccessExclusiveLock on a tuple, which is new to me. I wasn't able to produce this message experimentally doing various combinations of UPDATE statements and SELECT FOR UPDATEs, or even with explicit LOCK ACCESS EXCLUSIVE MODE, thus the question.
--
-- Christophe Pettus
xof(at)thebuild(dot)com