Tom Lane a écrit :
Jonathan Scher <[EMAIL PROTECTED]> writes:
CLUSTER uses an ACCESS EXCLUSIVE lock. Why does it forbid concurrent reads?

Because when it drops the old copy of the table there had better not be
any concurrent readers.

                        regards, tom lane

Then, is it possible to take a share update exclusive lock until the new table is ready, then an access exclusive one only in order to switch tables? I don't think it's already coded like that...

Jonathan Scher

---------------------------(end of broadcast)---------------------------
TIP 4: Have you searched our list archives?


Reply via email to