Re: WAL & RC1 status

> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Is there a version number in the WAL file?
> 
> catversion.h will do fine, no?
> 
> > Can we put conditional code in there to create
> > new log file records with an updated format?
> 
> The WAL stuff is *far* too complex already.  I've spent a week studying
> it and I only partially understand it.  I will not consent to trying to
> support multiple log file formats concurrently.

Well, I was thinking a few things.  Right now, if we update the
catversion.h, we will require a dump/reload.  If we can update just the
WAL version stamp, that will allow us to fix WAL format problems without
requiring people to dump/reload.  I can imagine this would be valuable
if we find we need to make changes in 7.1.1, where we can not require
dump/reload.

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