Re: pg_migrator and handling dropped columns

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Bruce Momjian <bruce(at)momjian(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>
Subject: Re: pg_migrator and handling dropped columns
Date: 2009-02-13 08:43:56
Message-ID: 499532CC.5020702@gmx.net
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Tom Lane wrote:
>> Is this acceptable to everyone? We could name the option
>> -u/--upgrade-compatible.
>
> If the switch is specifically for pg_upgrade support (enabling this as
> well as any other hacks we find necessary), which seems like a good
> idea, then don't chew up a short option letter for it. There should be
> a long form only.

Note that pg_dump's output is already upgrade compatible. That's what
pg_dump is often used for after all. I believe what we are after here
is something like "in-place upgrade compatible" or "upgrade binary
compatible".

> And probably not even list it in the user documentation.

I think we should still list it somewhere and say it is for use by
in-place upgrade utilities. It will only confuse people if it is not
documented at all.

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