Re: Patch: improve selectivity estimation for IN/NOT IN

Поиск
Список
Период
Сортировка
От Euler Taveira de Oliveira
Тема Re: Patch: improve selectivity estimation for IN/NOT IN
Дата
Msg-id 4F5371C8.6080104@timbira.com
обсуждение исходный текст
Ответ на Re: Patch: improve selectivity estimation for IN/NOT IN  (Daniele Varrazzo <daniele.varrazzo@gmail.com>)
Ответы Re: Patch: improve selectivity estimation for IN/NOT IN
Список pgsql-hackers
On 04-03-2012 00:20, Daniele Varrazzo wrote:
> It looks like you have grand plans for array estimation. My patch has
> a much more modest scope, and I'm hoping it could be applied to
> currently maintained PG versions, as I consider the currently produced
> estimations a bug.
> 
We don't normally add new features to stable branches unless it is a bug. In
the optimizer case, planner regression is a bug (that this case is not).


--   Euler Taveira de Oliveira - Timbira       http://www.timbira.com.br/  PostgreSQL: Consultoria, Desenvolvimento,
Suporte24x7 e Treinamento
 


В списке pgsql-hackers по дате отправления:

Предыдущее
От: Alexander Korotkov
Дата:
Сообщение: Re: Collect frequency statistics for arrays
Следующее
От: Alexander Korotkov
Дата:
Сообщение: Re: Collect frequency statistics for arrays