Re: proposal: tuplestore, tuplesort aggregate functions
От | Robert Haas |
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Тема | Re: proposal: tuplestore, tuplesort aggregate functions |
Дата | |
Msg-id | AANLkTimbfjHH3Meo9Szof5wVJ+i4x_qk7cnNLKyvJuMP@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: proposal: tuplestore, tuplesort aggregate functions (David Fetter <david@fetter.org>) |
Ответы |
Re: proposal: tuplestore, tuplesort aggregate functions
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Список | pgsql-hackers |
On Thu, Aug 19, 2010 at 9:46 AM, David Fetter <david@fetter.org> wrote: > As to median, please make sure you say in detail which median you're > using and name it so, as there is no single, authoritative median. You've made this assertion at least three times now, but I confess that I've only ever learned one way to compute a median; and quick Google searches for "median", "kinds of median", and few other variants failed to turn up anything obvious either. It seems to me that if median is good enough for Oracle, Sybase, Excel, and the nun who taught my fifth-grade elementary school class, it ought to be good enough for us, too. (Don't mess with Sr. Catherine!) -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise Postgres Company
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