Re: GROUP BY + join regression in 7.3

Tom Lane wrote:
> I have just noticed that 7.3 and CVS tip reject a query that was
> accepted in earlier releases:
>
> regression=# create table t1(f1 int, f2 int);
> CREATE TABLE
> regression=# create table t2(f2 int, f3 int);
> CREATE TABLE
> regression=# select t1.f1 from t1 join t2 on (t1.f2=t2.f2) group by f1;
> ERROR: Attribute t1.f1 must be GROUPed or used in an aggregate function

[...snip...]

> In the plain inner-join case, there isn't any semantic difference
> between "f1" and "t1.f1", but does that mean we should treat them
> as the same grouping column? I'm not sure. Anyone want to try these
> cases on other DBMSes?
>

I did the above on MSSQL2000 -- it works with no error. I haven't been
able to get at a development Oracle db, but I'll try to tomorrow.

Joe