Bruce Momjian <br...@momjian.us> writes: > Tom Lane wrote: >> I'm not sure whether there is any clear rule for what rows you get when >> grouping by a non-PK column in mysql, but it'll let you do it.
> I understand this. The issue is how many people who complained about > our GROUP BY behavior were grouping by something that was a primary key, > and how many were not using a primary key? The former will no longer > complain. No doubt, but the TODO entry you removed is still 100% accurately worded, and what's more the archive entry it links to clearly describes exactly the point at issue, namely that grouping by a PK *isn't* indeterminate. You were wrong to remove it. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers