On Sep 1, 2010, at 10:12 AM, Tom Lane wrote: > I think when that text was written, it was meant to imply "all the > aggregates defined in SQL92". There seems to be a lot of confusion > in this thread about whether "standard" means "defined by SQL spec" > or "built-in in Postgres". Should we try to refine the wording to > clarify that?
Yes please. > Even more to the point, should we deliberately make this vaguer so that > we aren't finding ourselves with obsolete text again and again? You can > bet that people adding new aggregates in the future aren't going to > think to update this sentence, any more than happened with array_agg. Perhaps “consult the docs for each aggregate to determine how it handles NULLs.” Best, David -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
