From: | Andreas 'ads' Scherbaum <adsmail(at)wars-nicht(dot)de> |
---|---|
To: | pgsql-patches(at)postgresql(dot)org |
Subject: | Re: create or replace language |
Date: | 2008-05-03 16:38:02 |
Message-ID: | 20080503183802.7984d44b@iridium.wars-nicht.de |
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Lists: | pgsql-patches |
On Sat, 29 Mar 2008 22:35:21 -0400 Tom Lane wrote:
> The key argument seems to be that it's quite unclear what the state
> following CREATE IF NOT EXISTS (CINE) should be, if the object does
> exist but not with the same properties specified in the CINE command.
> CREATE OR REPLACE resolves that by making it clear that it's gonna be
> what the command says. Perhaps there is a use-case for the alternate
> behavior where the pre-existing object doesn't get modified, but I'm
> not too sure what it would be.
Attached is a first version for the "CREATE OR REPLACE LANGUAGE" patch.
It's still missing some functionality (especially the update part is
far away from being complete) and it's also missing documentation.
I just want to know if i'm heading in the right direction or if
something is totally broken in my basic approach:
In case a language is already in pg_pltemplate, the (possibly changed)
values from this table are used to update the pg_languages entry. This
gives the ability to change the owner, trust status, the language or
validator handler.
In case the language is not in pg_pltemplate, the values from the
commandline are used, just like "create language".
Thanks & kind regards
--
Andreas 'ads' Scherbaum
German PostgreSQL User Group
Attachment | Content-Type | Size |
---|---|---|
create_or_replace_language-patch-2008-05-03.patch | text/x-patch | 9.5 KB |
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