From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
---|---|
To: | Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Alvaro Herrera <alvherre(at)commandprompt(dot)com>, Dimitri Fontaine <dfontaine(at)hi-media(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: actualised funcs typmod patch |
Date: | 2009-11-17 20:20:33 |
Message-ID: | 162867790911171220h2908ecd0hc0424fce6c1e6de5@mail.gmail.com |
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2009/11/17 Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>:
> Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> wrote:
>
>> sorry, it's problem in my english
>
> In hopes that it may help overcome the language barrier if someone
> restates the issue in different words, I'll echo Tom's concerns, which
> I share.
>
>> This cannot change an behave of older applications.
>
> Agreed. That's not the problem.
>
>> if somebody use explicit typmod in CREATE FUNCTION statement, then
>> he get different behave. But he have to do it explicitly in 8.5.
>
> The problem here is that we are then committed to supporting that
> behavior forever. There are many different options for what behavior
> could and should be supported for this syntax, and we don't want to
> get locked in to one of those options by happenstance. We want the
> options to be discussed by the community prior to getting locked in to
> something. It would be unusual for one individual to pick a direction
> for something like this and to come up with a decision which is as
> good, in the long run, as consensus coming out of the synergy of group
> discussion could generate.
I understand it well and I invite any discussion about this topic
(additing typmod to function's interface). So please, check it, test
it, write notes.
Pavel
>
> -Kevin
>
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