From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
---|---|
To: | Vik Fearing <vik(at)postgresfriends(dot)org> |
Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: SQL-standard function body |
Date: | 2020-07-01 20:34:18 |
Message-ID: | CAFj8pRCA6VA1MVUjiGY=othFKAqFRm-LM3NrapFicsQhsuN5pA@mail.gmail.com |
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Lists: | pgsql-hackers |
st 1. 7. 2020 v 22:31 odesílatel Vik Fearing <vik(at)postgresfriends(dot)org>
napsal:
> On 7/1/20 9:32 PM, Pavel Stehule wrote:
> > st 1. 7. 2020 v 20:19 odesílatel Vik Fearing <vik(at)postgresfriends(dot)org>
> > napsal:
> >
> >> On 7/1/20 3:36 PM, Robert Haas wrote:
> >>> I actually don't have a very clear idea of what the standard has to
> >>> say about SQL-language functions. Does it just say it's a list of
> >>> statements, or does it involve variables and control-flow constructs
> >>> and stuff like that, too?
> >>
> >>
> >> It's either a single sql statement, or a collection of them between
> >> "begin atomic" and "end". There are no variables or flow control
> >> constructs or anything like that, just as there are no such things
> >> outside of a function.
> >>
> >
> > What is the source of this comment?
>
>
> The SQL Standard.
>
The SQL Standard is really big, and is very possible so I miss this part.
Can you send me a link?
Regards
Pavel
>
> > Maybe we are speaking (and thinking)
> > about different languages.
>
>
> I think so, yes.
>
>
> > I thought the language of SQL functions (ANSI/SQL) is SQL/PSM.
>
>
> That is something else entirely, and not at all what Peter's patch is
> about.
>
--
> Vik Fearing
>
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