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* oid...any optimizations
@ 2008-03-06 07:02 sathiya psql <sathiya.psql@gmail.com>
0 siblings, 2 replies; 5+ messages in thread
From: sathiya psql @ 2008-03-06 07:02 UTC (permalink / raw)
To: pgsql-performance
i had a table with 50 lakh record...
it has a column called oid ( obviously all the tables will have this ), but
while doing any operation it is getting slow because of the number of
records...
if i remove the oid column will i get any benefit, what are all the other
default columns created without our knowledge..
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: oid...any optimizations
@ 2008-03-06 07:06 Joshua D. Drake <jd@commandprompt.com>
parent: sathiya psql <sathiya.psql@gmail.com>
1 sibling, 1 reply; 5+ messages in thread
From: Joshua D. Drake @ 2008-03-06 07:06 UTC (permalink / raw)
To: sathiya psql <sathiya.psql@gmail.com>; +Cc: pgsql-performance
On Thu, 6 Mar 2008 12:32:01 +0530
"sathiya psql" <sathiya.psql@gmail.com> wrote:
> i had a table with 50 lakh record...
>
> it has a column called oid ( obviously all the tables will have
> this ), but while doing any operation it is getting slow because of
> the number of records...
Actually it isn't obvious as oids have been deprecated for years.
>
> if i remove the oid column will i get any benefit, what are all the
> other default columns created without our knowledge..
What version of ancient PostgreSQL are you running exactly?
Joshua D. Drake
--
The PostgreSQL Company since 1997: http://www.commandprompt.com/
PostgreSQL Community Conference: http://www.postgresqlconference.org/
Donate to the PostgreSQL Project: http://www.postgresql.org/about/donate
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^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: oid...any optimizations
@ 2008-03-06 07:13 sathiya psql <sathiya.psql@gmail.com>
parent: Joshua D. Drake <jd@commandprompt.com>
0 siblings, 1 reply; 5+ messages in thread
From: sathiya psql @ 2008-03-06 07:13 UTC (permalink / raw)
To: Joshua D. Drake <jd@commandprompt.com>; +Cc: pgsql-performance
>
> Actually it isn't obvious as oids have been deprecated for years.
no in my version it is now also available....
>
>
> What version of ancient PostgreSQL are you running exactly?
postgresql 7.4
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: oid...any optimizations
@ 2008-03-06 07:21 Theo Kramer <theo@flame.co.za>
parent: sathiya psql <sathiya.psql@gmail.com>
1 sibling, 0 replies; 5+ messages in thread
From: Theo Kramer @ 2008-03-06 07:21 UTC (permalink / raw)
To: pgsql-performance
On Thu, 2008-03-06 at 12:32 +0530, sathiya psql wrote:
> i had a table with 50 lakh record...
>
> it has a column called oid ( obviously all the tables will have
> this ), but while doing any operation it is getting slow because of
> the number of records...
>
> if i remove the oid column will i get any benefit, what are all the
> other default columns created without our knowledge..
Probably not
Also - do not remove oid if your sql operations require it.
A 'create index x_oid_idx on table x (oid)' might help.
Also see EXPLAIN in the manual.
--
Regards
Theo
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: oid...any optimizations
@ 2008-03-06 16:28 Joshua D. Drake <jd@commandprompt.com>
parent: sathiya psql <sathiya.psql@gmail.com>
0 siblings, 0 replies; 5+ messages in thread
From: Joshua D. Drake @ 2008-03-06 16:28 UTC (permalink / raw)
To: sathiya psql <sathiya.psql@gmail.com>; +Cc: pgsql-performance
On Thu, 6 Mar 2008 12:43:57 +0530
"sathiya psql" <sathiya.psql@gmail.com> wrote:
> >
> > Actually it isn't obvious as oids have been deprecated for years.
>
>
> no in my version it is now also available....
I didn't say they were gone. I said they are deprecated. You should not
be using them.
>
> >
> >
> > What version of ancient PostgreSQL are you running exactly?
>
>
> postgresql 7.4
That is god awful ancient. Upgrade to something remotely new, like
8.2.6.
Joshua D. Drake
--
The PostgreSQL Company since 1997: http://www.commandprompt.com/
PostgreSQL Community Conference: http://www.postgresqlconference.org/
Donate to the PostgreSQL Project: http://www.postgresql.org/about/donate
PostgreSQL SPI Liaison | SPI Director | PostgreSQL political pundit
Attachments:
signature.asc (application/pgp-signature, 188B) download
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end of thread, other threads:[~2008-03-06 16:28 UTC | newest]
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-- links below jump to the message on this page --
2008-03-06 07:02 oid...any optimizations sathiya psql <sathiya.psql@gmail.com>
2008-03-06 07:06 ` Joshua D. Drake <jd@commandprompt.com>
2008-03-06 07:13 ` sathiya psql <sathiya.psql@gmail.com>
2008-03-06 16:28 ` Joshua D. Drake <jd@commandprompt.com>
2008-03-06 07:21 ` Theo Kramer <theo@flame.co.za>
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