Bruce Momjian <bruce@momjian.us> writes:
> Let me list the problems with pg_migrator:
> o /contrib and plugin migration (not unique to pg_migrator)
> o you must read/follow the install instructions
> o might require post-migration table/index rebuilds
> o new so serious bugs might exist
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
This would certainly catch migration-time failures caused by plugins,
and the followup testing would probably catch any large post-migration
issue.
Somebody who is not willing to do this type of testing should not be
using pg_migrator (yet), and probably has not got a database large
enough to need it anyway.
regards, tom lane