| From: | Itagaki Takahiro <itagaki(dot)takahiro(at)gmail(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
| Subject: | Re: multiset patch review |
| Date: | 2011-01-24 12:27:48 |
| Message-ID: | AANLkTim7S-3v3DmeRiYt01oZnXd5oTT2tV3vovUmayUK@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Jan 24, 2011 at 20:49, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> I notice that this is adding keywords and syntax support for what is
> basically a PostgreSQL extension (since we certainly can't possibly be
> following the SQL standards given that we're not implementing a new
> datatype. Is that really a good idea?
As I wrote here,
http://archives.postgresql.org/pgsql-hackers/2011-01/msg00829.php
I think we can follow the SQL standard incrementally because we
have function overloads.
One exception is the result type of collect() aggregate function.
It returns an array for now, but will return a multiset when we
support true multiset data type.
--
Itagaki Takahiro
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