2010/5/1 Bruce Momjian <bruce@momjian.us>:
> Tom Lane wrote:
>> Bruce Momjian <bruce@momjian.us> writes:
>> > While most of the limitations in previous versions of pg_migrator are
>> > gone, there are still issues with migrating /contrib modules, and there
>> > are many steps to its use.
>>
>> > I think to attain mass usage of pg_migrator, some type of one-click
>> > installer has to be built that can access the operating system and make
>> > the migration process simple, though that is probably beyond what we as
>> > a community are going to do.
>>
>> While the above are true statements, IMO the real gating factor right now
>> for pg_migrator is that people don't know whether they can trust it.
>> It won't get over that basic hump without a lot more real-world testing;
>> and as long as it's a separately distributed project I don't think it'll
>> get the necessary level of testing. That's why I feel it needs some
>
> Agreed.
>
>> time in contrib --- and why I don't have a warm fuzzy feeling about
>> Peter's proposal to push it directly into the core project.
>
> I am unclear why it would be in /bin if it requires 15 steps to run and
> is run only once by only some users. It seems natural for /contrib,
> like pgcrypto.
Do we already have a process to upgrade postgres + HotStandby
(9.0->9.1 for example) ?
>
>> As for the "one click" aspect, I think that that's largely on the heads
>> of packagers to provide some convenient method of using it. For the RPM
>> packages, I envision eventually having a "postgresql-migrate" package
>> that contains pg_migrator, a copy of the version-N-minus-1 postmaster,
>> and some sort of frontend script. Install, run the script, remove.
>> But we're a long way from that yet.
>
> Yes, that is what is needed eventually.
>
> --
> Bruce Momjian <bruce@momjian.us> http://momjian.us
> EnterpriseDB http://enterprisedb.com
>
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--
Cédric Villemain