Re: vacuum does not reclaim rows

Oh, shared tables --- I forgot about those.

---------------------------------------------------------------------------

Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > This might be a stupid question, but why does one backend have to care
> > about the global xmin at all?  Isn't the local xmin the only important
> > value?
> 
> Not when it's looking at shared tables.
> 
> Do you want to try to make the tqual code aware of whether it's looking
> at a shared or nonshared table?  I don't honestly think it's worth it...
> 
>             regards, tom lane
> 

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
359-1001+  If your life is a hard drive,     |  13 Roberts Road +  Christ can be your backup.        |  Newtown Square,
Pennsylvania19073