Jonathan Scher <js(at)oxado(dot)com> 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

In response to

• CLUSTER, using SHARE UPDATE EXCLUSIVE lock? at 2007-03-01 13:55:35 from Jonathan Scher

Responses

• Re: CLUSTER, using SHARE UPDATE EXCLUSIVE lock? at 2007-03-01 17:23:37 from Jonathan Scher

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