Re: switch UNLOGGED to LOGGED

Excerpts from Robert Haas's message of vie may 06 23:25:09 -0300 2011:
> On Fri, Apr 22, 2011 at 4:13 AM, Leonardo Francalanci  wrote:
> >> Maybe you should change  xl_act_commit to have a separate list of rels to
> >> drop the init fork for  (instead of mixing those with the list of files to
> >> drop as a  whole).
> >
> > I tried to follow your suggestion, thank you very much.
> 
> I have to admit I don't like this approach very much.  I can't see
> adding 4 bytes to every commit record for this feature.

Hmm, yeah.  Maybe we can add a "flags" int8 somewhere in that struct and
set a bit in it if nrels, nsubxacts, nmsgs and respective arrays are present.
That would save some int's that are already in there.

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Álvaro Herrera 
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