On Thu, 2007-03-01 at 14:35 +0100, Zeugswetter Andreas ADI SD wrote:
> >             -- start the VACUUM from the first non-filled block
> > 
> > So if we do this, we wouldn't need to worry about HOT tuples 
> > at all, nor would we need to wait until all transactions are gone.
> You need to wait until you are allowed to truncate if you want
> concurrency.
> Or a concurrent scan might miss a row, because the visible tuple got
> truncated away.

I was not suggesting that we remove visible rows through truncation.

  Simon Riggs             
  EnterpriseDB   http://www.enterprisedb.com

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