On Fri, Oct 03, 2003 at 15:47:01 -0600,
  Rob Nagler <[EMAIL PROTECTED]> wrote:
> > vacuum full does require exclusive lock, plain vacuum does not.
> 
> I think I need full, because there are updates on the table.  As I
> understand it, an update in pg is an insert/delete, so it needs
> to be garbage collected.

Plain vacuum will mark the space used by deleted tuples as reusable.
Most of the time this is good enough and you don't need to run vacuum full.

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