TODO updated:

        * Allow TRUNCATE ... CASCADE/RESTRICT

---------------------------------------------------------------------------

Tom Lane wrote:
> Robert Treat <[EMAIL PROTECTED]> writes:
> > On Sun, 2003-08-17 at 00:42, Tom Lane wrote:
> >> To do anything else, you'd have to solve some locking and/or
> >> race-condition problems: rows could be inserted in the other table
> >> while the TRUNCATE runs.
> 
> > Seems like you'll have that issue with truncate all wont you? I guess
> > we'll assume that if you use the cascade statement you understand these
> > risks and accept them.
> 
> Yeah.  A TRUNCATE ALL would need exclusive lock on every table.  If
> there are any other transactions running, the odds of getting all those
> locks without deadlocking are pretty low.  TRUNCATE CASCADE would also
> have a risk of failing due to deadlock (but with fewer tables in play
> it'd have a smaller risk).  TRUNCATE RESTRICT should *not* create a
> deadlock risk IMHO, and that means it can't lock other tables.
> 
>                       regards, tom lane
> 

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  [EMAIL PROTECTED]               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

---------------------------(end of broadcast)---------------------------
TIP 2: you can get off all lists at once with the unregister command
    (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])

Reply via email to