Tom Lane wrote:
> Bruce Momjian <[EMAIL PROTECTED]> writes:
> > It only becomes better if we can throw away that file (or contents) when
> > the transaction completes and we have marked all the subtransactions as
> > completed.  We can't compress pg_clog if we store the parent info in
> > there.
> 
> But we already have a recycling mechanism for pg_clog.  AFAICS,
> creating a parallel log file with a separate recycling mechanism is
> a study in wasted effort.

But that recycling requires the vacuum of every database in the system. 
Do people do that frequently enough?

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
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