Re: Bug: 8.0 beta1 either view optimization or pgdump/pgrestore

Поиск
Список
Период
Сортировка
От Sim Zacks
Тема Re: Bug: 8.0 beta1 either view optimization or pgdump/pgrestore
Дата
Msg-id 385834187.20041028085420@compulab.co.il
обсуждение исходный текст
Ответ на Re: Bug: 8.0 beta1 either view optimization or pgdump/pgrestore  (Sim Zacks <sim@compulab.co.il>)
Список pgsql-general
On second thought another way to optimize a query like that would be
to remove the * and only put in the columns that are actually being
used, as opposed to taking the * literally.
Such that if the fields in the select list use 2 columns and the join
uses 1 column, only those 3 columns should be expanded by the
optimizer. This would probably make the query more efficient as well,
being that it selects fewer fields.

Thank You
Sim Zacks
IT Manager
CompuLab
04-829-0145 - Office
04-832-5251 - Fax


В списке pgsql-general по дате отправления:

Предыдущее
От: Sim Zacks
Дата:
Сообщение: Re: Bug: 8.0 beta1 either view optimization or pgdump/pgrestore
Следующее
От: Thomas Hallgren
Дата:
Сообщение: Re: Reasoning behind process instead of thread based