> -----Original Message-----
> From: tgl@postgresql.org
> Sent: Friday, December 22, 2000 9:52 AM
> To: pgsql-committers@postgresql.org
> Subject: [COMMITTERS] pgsql/src/backend/storage/lmgr (lmgr.c lock.c
> proc.c README)
>
> ----------------------------- Log Message -----------------------------
>
> Revise lock manager to support "session level" locks as well as
> "transaction
> level" locks.
[snip]
> I also took this opportunity to do some cleanup and renaming in the lock
> code. The previously noted bug in ProcLockWakeup, that it
> couldn't wake up
> any waiters beyond the first non-wakeable waiter, is now fixed.
I've just noticed that this changed a locking behabior.
For example, VACUUM could hardly acquire the lock
while other backends frequently access the target table.
Regards.
Hiroshi Inoue