[PostgreSQL-Hackers] [PATCH] Allow star syntax in GROUP BY, as a shorthand for all table columns

Marti Raudsepp writes:
This patch enables the syntax "GROUP BY tablename.*" in cases where
earlier you'd get the error "field must appear in the GROUP BY clause
or be used in an aggregate function"
Is this really necessary now that we know about "GROUP BY primary key"?
The patch is so trivial that I'm wondering why it hasn't been
implemented before.