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Re: contrib loose ends: 9.0 to 9.1 incompatibilities

Robert Haas <robertmhaas@gmail.com>

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From: Robert Haas <robertmhaas@gmail.com>
To: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, pgsql-hackers@postgresql.org
Date: 2011-02-16T17:30:55Z
Lists: pgsql-hackers 
On Wed, Feb 16, 2011 at 12:24 PM, Heikki Linnakangas
<heikki.linnakangas@enterprisedb.com> wrote:
> On 16.02.2011 19:17, Robert Haas wrote:
>>
>> The trouble is that we have no mechanism for conditional logic in
>> upgrade scripts,...
>
> Can't you put a DO-block there? It's not pretty, but should work..

Tom has repeatedly objected to that solution on the grounds that
someone could DROP LANGUAGE plpgsql.

In practice, I am sure many third-party extensions will do just that
if we don't provide suitable core infrastructure, but not pretty
definitely covers it.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
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