Re: [HACKERS] Gsets: ROW expression semantic broken between 9.4 and 9.5

Hi,

On 2015-07-22 23:53:26 +0530, Jeevan Chalke wrote:
> It looks like we have broken the ROW expression without explicit
> ROW keyword in GROUP BY.

That was "intentional", and is actually standards required
behaviour. GROUP BY (a, b) is the same as GROUP BY a,b. It'd otherwise
be pretty confusing because parens in GROUPING SETS would mean something
different than in GROUP BY.

We should probably add a release note entry about it...

Thanks for testing gsets!

- Andres