Re: proposal - plpgsql - support standard syntax for named arguments for cursors

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От Pavel Stehule
Тема Re: proposal - plpgsql - support standard syntax for named arguments for cursors
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Msg-id CAFj8pRDCHwKnj=mZXAQLMcTAXkGTO9M5zzGzWB1KGEf4dTn9JA@mail.gmail.com
обсуждение исходный текст
Ответ на Re: proposal - plpgsql - support standard syntax for named arguments for cursors  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: proposal - plpgsql - support standard syntax for named arguments for cursors
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Hi

so 8. 2. 2025 v 20:25 odesílatel Tom Lane <tgl@sss.pgh.pa.us> napsal:
Pavel Stehule <pavel.stehule@gmail.com> writes:
> I propose to enhancing to ANSI/SQL standard syntax for named arguments
> `argname => value`

Is there any reason to think that that's actually in the standard?
I poked around in SQL:2021 a little and couldn't find anything about
cursors with arguments at all.

I think the possibility to use named arguments in OPEN statements is a PostgreSQL proprietary feature.
And usage of cursors in PL/pgSQL is based on PL/SQL (not on SQL/PSM from standard), but named
arguments for cursor is PostgreSQL proprietary feature and the syntax based on usage `:=` is our
proprietary too.


It is from the window, when the named arguments was supported already

https://www.postgresql.org/message-id/20091008023926.1BE85753FB7@cvs.postgresql.org  (the syntax was changed before release)
but not with ANSI syntax https://github.com/postgres/postgres/commit/865f14a2d31af23a05bbf2df04c274629c5d5c4d

I forgot to fix this in my patch for 9.5 - probably I missed this functionality

Regards

Pavel

 

                        regards, tom lane

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