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.
regards, tom lane
