Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > Tom Lane wrote:
> >> I think that #1 and #4 could be substantially alleviated if the
> >> instructions recommended doing a trial run with a schema-only dump
> >> of the database. That is,
> >>
> >> * pg_dumpall -s
> >> * load that into a test installation (of the *old* PG version)
> >> * migrate the test installation to new PG version
> >> * do the same sorts of applications compatibility checks you'd want to
> >> do anyway before a major version upgrade
>
> > But you have no data in the database --- can any meaningful testing be
> > done?
>
> Well, you'd have to insert some. But this is something you'd have to do
> *anyway*, unless you are willing to just pray that your apps don't need
> any changes. The only new thing I'm suggesting here is incorporating
> use of pg_migrator into your normal compatibility testing.
Ah, I see. Interesting. I have added the second sentence to the
pg_migrator README:
Installation------------See the INSTALL file for detailed installation instructions. Fordeployment testing, create a
schema-onlycopy of the old cluster, insertdummy data, and migrate that.
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +