Fwd: [SQL] aggregate function stddev

Поиск
Список
Период
Сортировка
От Josh Berkus
Тема Fwd: [SQL] aggregate function stddev
Дата
Msg-id 200409091138.21985.josh@agliodbs.com
обсуждение исходный текст
Ответы Re: Fwd: [SQL] aggregate function stddev
Список pgsql-docs
Folks,

Sending this remark to the list so that I/we don't forget to patch it .....

========================================
Just noticed that the postgres stddev is the stddev_sample formula.
There are two different ways to calculate this value.
Their difference is very small with large samle size.  It would be nice
to distinguish the two different versions.
========================================

--
Josh Berkus
Aglio Database Solutions
San Francisco

В списке pgsql-docs по дате отправления:

Предыдущее
От: Thomas F.O'Connell
Дата:
Сообщение: Minor Typo in SELECT docs
Следующее
От: Tom Lane
Дата:
Сообщение: Re: Fwd: [SQL] aggregate function stddev