Re: slow cursor

Поиск
Список
Период
Сортировка
От Jim C. Nasby
Тема Re: slow cursor
Дата
Msg-id 20060421023540.GS49405@pervasive.com
обсуждение исходный текст
Ответ на slow cursor  ("Sriram Dandapani" <sdandapani@counterpane.com>)
Список pgsql-admin
On Mon, Apr 17, 2006 at 07:07:54AM -0700, Sriram Dandapani wrote:
> I have a cursor that fetches 150K rows and updates or inserts a table
> with 150K rows.
>
> It takes several minutes for the process to complete (about 15 minutes).
> The select by itself (without cursor) gets all rows in 15 seconds.
>
> Is there a way to optimize the cursor to fetch all records and speed up
> the process. I still need to do the record by record processing

Not likely. Are you at least doing all this inside a transaction?
--
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461

В списке pgsql-admin по дате отправления:

Предыдущее
От: "Jim C. Nasby"
Дата:
Сообщение: Re: Slony1 or DRBD for replication ?
Следующее
От: "Jim C. Nasby"
Дата:
Сообщение: Re: Invalid Page Headers