From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Lamar Owen <lamar(dot)owen(at)wgcr(dot)org>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: RPMS for 7.3 beta. |
Date: | 2002-09-17 21:58:33 |
Message-ID: | 200209172158.g8HLwXl24906@candle.pha.pa.us |
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Lists: | pgsql-hackers |
Tom Lane wrote:
> Lamar Owen <lamar(dot)owen(at)wgcr(dot)org> writes:
> > ... What I am looking
> > at is whether the user will have to run 7.3's pg_dump in order to migrate
> > older data.
>
> AFAIK this is not *necessary*, though it may be *helpful*. Aside from
> the OPAQUE issue, which we will fix one way or another, I am aware of
> these issues for loading a pre-7.3 dump:
>
> * A reloaded dump will fail to GRANT EXECUTE TO PUBLIC on functions,
> likewise fail to GRANT USAGE TO PUBLIC on procedural languages.
> This may not bother some people, but for those it does bother,
> it's not that hard to issue the GRANTs manually after loading the dump.
>
> * A reloaded dump will not create dependencies between serial columns
> and sequence objects, nor between triggers and foreign key
> constraints, thus 7.3's nifty new support for DROP CONSTRAINT won't
> work, nor will dropping a table make its associated sequences go away.
> However, this can be boiled down to saying that it still works like it
> did before.
These seem like poor reasons for using 7.3 pg_dump on 7.2 databases.
Item #1 can be easily fixed via an SQL command issued after the load, if
desired, and #2 is really not something specific to the RPM issue.
We may be better writing a script that uses the names of the
triggers/sequences to create dependency information automatically. Has
anyone looked at that?
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
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