Re: retrieve grouping sets/rollup rows

>> On 03/13/2016 10:07 PM, Tom Smith wrote:
>>> It would help if the resultset has some param to mark which is which
>>> with the grouping sets index.

I think you're looking for the GROUPING() function.  See
http://www.postgresql.org/docs/9.5/static/functions-aggregate.html

            regards, tom lane