Re: roll back to 8.1 for PyQt driver work-around

Scott Frankel <frankel@[EMAIL PROTECTED]
> writes:
> Any suggestions for how best to launch one of two different versions  
> of pg installed on the same machine?

> I have both 8.3 and 8.1 installed on a MacBookPro (OS X 10.5.2).  I  
> stopped the 8.3 postmaster using pg_ctl in order to roll back to 8.1.   
> Problem is, now I can't seem to start the server using either version.

It looks like you're trying to use the same data directory for both
versions, which won't work.  They're not compatible on-disk.

> When I launch 8.1 with pg_ctl, it yields a "postmaster starting"  
> message; but then a status check shows that the server is not  
> running.  Issuing the same commands for 8.3, I get similar results.

Looking into the postmaster log file (your -l specification) might
yield some insight.  pg_ctl itself doesn't really know why the
postmaster failed to start.

			regards, tom lane

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