Re: Table Partitioning is in 8.1

Поиск
Список
Период
Сортировка
Искать
От
Hannu Krosing
Тема
Re: Table Partitioning is in 8.1
Дата
Msg-id
1127339251.5056.15.camel@fuji.krosing.net
Ответ на
Список
Дерево обсуждения
Table Partitioning is in 8.1 Simon Riggs <simon@2ndquadrant.com>
Re: Table Partitioning is in 8.1 Hannu Krosing <hannu@skype.net>
Re: Table Partitioning is in 8.1 Martijn van Oosterhout <kleptog@svana.org>
Re: Table Partitioning is in 8.1 Tom Lane <tgl@sss.pgh.pa.us>
Re: Table Partitioning is in 8.1 Hannu Krosing <hannu@skype.net>
Re: Table Partitioning is in 8.1 Simon Riggs <simon@2ndquadrant.com>
Re: Table Partitioning is in 8.1 "Jim C. Nasby" <jnasby@pervasive.com>
Re: Table Partitioning is in 8.1 Simon Riggs <simon@2ndquadrant.com>
R: Table Partitioning is in 8.1 "Paolo Magnoli" <pmagnoli@systemevolution.it>
Re: R: Table Partitioning is in 8.1 Simon Riggs <simon@2ndquadrant.com>
Re: R: Table Partitioning is in 8.1 Bricklen Anderson <BAnderson@PresiNET.com>
Re: Table Partitioning is in 8.1 Bruce Momjian <pgman@candle.pha.pa.us>
Re: Table Partitioning is in 8.1 "Joshua D. Drake" <jd@commandprompt.com>
Re: Table Partitioning is in 8.1 Bruce Momjian <pgman@candle.pha.pa.us>
On K, 2005-09-21 at 15:39 -0400, Tom Lane wrote:
> Simon Riggs  writes:
> > Is it possible that the Release Notes do not fully explain the
> > Constraint Exclusion feature? Or is it the consensus that it works but
> > not quite well enough to make a song and dance about yet?
> 
> I hardly think that the existing constraint-exclusion code is enough for
> us to claim we "support table partitioning".  There's too much grunt
> work that the DBA still has to do to set up a partitioning arrangement.

We can probably claim that :

"Postgres has *low-level* support for table partitioning using and
Inheritance, Rules/Triggers and Constraint Exclusion , enabling DBAs to
set up complex partitioning schemes"

There certainly is much grunt work, but then we can get a better CE
performance than just "PARTITION TABLE TTT BY XXX" would give by having
constraints on multiple fields in some/all partitions, both overlapping
and not, possibly resulting in a better overall system. That is what
"low-level" in the above statement means. 

-- 
Hannu Krosing 


В списке pgsql-hackers по дате отправления
От: Hannu Krosing
Дата:
От: Thomas Hallgren
Дата:
Сообщение: What has happened to pgxs?
FAQ