Re: Multiple-Table-Spanning Joins with ORs in WHERE Clause

Поиск
Список
Период
Сортировка
Искать
От
Sven R. Kunze
Тема
Re: Multiple-Table-Spanning Joins with ORs in WHERE Clause
Дата
Msg-id
c6339356-6729-fc23-d6b2-ef4c85cc0686@mail.de
Ответ на
Список
Дерево обсуждения
Re: Multiple-Table-Spanning Joins with ORs in WHERE Clause Igor Neyman <ineyman@perceptron.com>
Re: Multiple-Table-Spanning Joins with ORs in WHERE Clause Igor Neyman <ineyman@perceptron.com>
On 29.09.2016 20:12, Pavel Stehule wrote:
> In ideal world then plan should be independent on used form. The most 
> difficult is safe estimation of OR predicates. With correct estimation 
> the transformation to UNION form should not be necessary I am think.

Ah, okay. That's interesting.

So how can I help here?

Regards,
Sven

В списке pgsql-performance по дате отправления
От: Sven R. Kunze
Дата:
От: Pavel Stehule
Дата:
FAQ