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help / color / mirror / Atom feedFrom: Richard Huxton <[email protected]>
To: Neil Conway <[email protected]>
To: Bruce Momjian <[email protected]>
Cc: Christopher Kings-Lynne <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Automatic compat checking? (was 7.4 compatibility question)
Date: Wed, 22 Oct 2003 10:30:52 +0100
Message-ID: <[email protected]> (raw)
In-Reply-To: <1066804676.371.92.camel@tokyo>
References: <[email protected]>
<1066804676.371.92.camel@tokyo>
On Wednesday 22 October 2003 07:37, Neil Conway wrote:
> The second audience is the people who are really interested in exactly
> what has changed between the new release of PostgreSQL and the previous
> release series. It is important that we make it easy for an admin
> planning a PostgreSQL upgrade at a fairly large site to be able to see
> what changes in PostgreSQL have been made, and what changes will be
> necessary in their own applications.
Something I was pondering the other day was whether a pg_compat_chk utility
would be practical/desirable. You run it against your existing database /
schema dump and it prints a set of warnings:
Old version = 7.2.1
New version = 7.4.0
Warning: schema support introduced (v7.3)
all objects will be placed in the default schema
Failure: DEFAULT 'now' not supported (v7.4)
table1.column2
table2.column3
Notice: timestamp now holds milliseconds by default (v7.3)
tableX.whatever
My main concern would be that a 90% solution might be worse than nothing at
all.
Incidentally, this is not idle speculation, but something I might well have
time to stick in gborg during the 7.5 devt cycle.
--
Richard Huxton
Archonet Ltd
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Subject: Re: Automatic compat checking? (was 7.4 compatibility question)
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