Re: HOT question - insert/delete
От | Merlin Moncure |
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Тема | Re: HOT question - insert/delete |
Дата | |
Msg-id | b42b73150905201301j128dbba4mc29f808cc2ddcb0a@mail.gmail.com обсуждение исходный текст |
Ответ на | HOT question - insert/delete (Gerhard Wiesinger <lists@wiesinger.com>) |
Ответы |
Re: HOT question - insert/delete
Re: HOT question - insert/delete Re: HOT question - insert/delete |
Список | pgsql-general |
On Wed, May 20, 2009 at 3:11 PM, Gerhard Wiesinger <lists@wiesinger.com> wrote: > Hello! > > Is HOT in 8.3 used in the following scenario: > INSERT ... > DELETE ... > at the same ratio. > > So for example current data is added every minute and all old data older > than 2 years are deleted. > > Would the heap be bloated or is this avoided by the HOT feature of 8.3 and > nearly kept constant? HOT doesn't help here...it only helps with updates and then only if you are updating fields that are not indexed. if your table has a rolling set of data, for example a log file...you probably want to look at table partitioning (either manual or built in). merlin
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