| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Jeevan Chalke <jeevan(dot)chalke(at)enterprisedb(dot)com> |
| Cc: | Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk>, Atri Sharma <atri(dot)jiit(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Postgres-Bugs <pgsql-bugs(at)postgresql(dot)org> |
| Subject: | Re: [HACKERS] Grouping Sets: Fix unrecognized node type bug |
| Date: | 2015-07-26 14:13:41 |
| Message-ID: | 20150726141341.GD5143@awork2.anarazel.de |
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| Lists: | pgsql-bugs pgsql-hackers |
On 2015-07-17 11:37:26 +0530, Jeevan Chalke wrote:
> However I wonder why we are supporting GROUPING SETS inside GROUPING SETS.
> On Oracle, it is throwing an error.
> We are not trying to be Oracle compatible, but just curious to know.
The SQL specification seems to be pretty unambigous about supporting
nested grouping set specifications. Check 7.9 <group by
clause>: <grouping set> (nested inside a <grouping sets specification>)
can contain <grouping sets specification>.
Regards,
Andres
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