Peter Eisentraut wrote:
> On fre, 2011-06-24 at 16:34 -0400, Bruce Momjian wrote:
> > > > It also creates two new environment variables,
> > > > OLDPGPORT and NEWPGPORT, to control the port values because we
> > don't
> > > > want to default to PGPORT anymore.
> > > 
> > > I would prefer that all PostgreSQL-related environment variables
> > start
> > > with "PG".
> > 
> > OK, attached.  I was also using environment variables for PGDATA and
> > PGBIN do I renamed those too to begin with 'PG'.
> 
> I'm wondering why pg_upgrade needs environment variables at all.  It's a
> one-shot operation.  Environment variables are typically used to shared
> default settings across programs.  I don't see how that applies here.

They were there in the original EnterpriseDB code, and in some cases
like PGPORT, we _used_ those environment variables.  Also, the
command-line can get pretty long so we actually illustrate environment
variable use in its --help:

        For example:
          pg_upgrade -d oldCluster/data -D newCluster/data -b oldCluster/bin -B 
newCluster/bin
        or
          $ export OLDDATADIR=oldCluster/data
          $ export NEWDATADIR=newCluster/data
          $ export OLDBINDIR=oldCluster/bin
          $ export NEWBINDIR=newCluster/bin
          $ pg_upgrade

You want the environment variable support removed?

-- 
  Bruce Momjian  <br...@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +

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