Excerpts from Alvaro Herrera's message of vie oct 21 00:40:26 -0300 2011:
Besides, the docs state that no backend code uses ShareRowExclusiveLock
anyway (13.3 Explicit locking). I guess that if the patch to reduce
lock strength in alter table goes in again, it'll need to update this
chapter
I just noticed that DropTrigger uses ShareRowExclusiveLock to lock the
relation it's going to drop the trigger on. The comment right above it
says that this should match RemoveTriggerById, but that one uses
AccessExclusiveLock -- so one of them (or the comment) is not right.
Besides, the docs
Alvaro Herrera alvhe...@alvh.no-ip.org writes:
I just noticed that DropTrigger uses ShareRowExclusiveLock to lock the
relation it's going to drop the trigger on. The comment right above it
says that this should match RemoveTriggerById, but that one uses
AccessExclusiveLock -- so one of them
Alvaro Herrera alvhe...@commandprompt.com writes:
Ah, I also noticed that the ALTER EXTENSION and SECURITY LABEL commands
use ShareUpdateExclusiveLock, and they failed when committed to note
this in the 13.3 chapter of the docs. Not sure how strict we are about
documenting these things. (I
