Skip site navigation (1) Skip section navigation (2)

Re: [PERFORM] HELP speed up my Postgres

From: Klint Gore <kg(at)kgb(dot)une(dot)edu(dot)au>
To: jerome(at)gmanmi(dot)tv
Cc: pgsql-general(at)postgresql(dot)org, pgsql-performance(at)postgresql(dot)org
Subject: Re: [PERFORM] HELP speed up my Postgres
Date: 2004-11-25 07:08:30
Message-ID: 41A584EE111.0263KG@129.180.47.120 (view raw or flat)
Thread:
Lists: pgsql-generalpgsql-performance
On Thu, 25 Nov 2004 14:00:32 +0800, JM <jerome(at)gmanmi(dot)tv> wrote:
> 		update SUBSCRIPTIONTABLE set ACTIVEFLAG='Y' where mobile_num in (select 
> mobile_num from LOADED_MOBILE_NUMBERS)

does loaded_mobile_numbers have a primary key or index on mobile_num?
same for subscriptiontable?
have you analyzed both tables?
is mobile_num the same type in both tables?

how does this query compare?
   update SUBSCRIPTIONTABLE set ACTIVEFLAG='Y' 
   from loaded_mobile_numbers
   where subscriptiontable.mobile_num = LOADED_MOBILE_NUMBERS.mobile_num

klint.

+---------------------------------------+-----------------+
: Klint Gore                            : "Non rhyming    :
: EMail   : kg(at)kgb(dot)une(dot)edu(dot)au           :  slang - the    :
: Snail   : A.B.R.I.                    :  possibilities  :
: Mail      University of New England   :  are useless"   :
:           Armidale NSW 2351 Australia :     L.J.J.      :
: Fax     : +61 2 6772 5376             :                 :
+---------------------------------------+-----------------+

In response to

Responses

pgsql-performance by date

Next:From: Anatoly OkishevDate: 2004-11-25 09:21:00
Subject: Re: HELP speed up my Postgres
Previous:From: Christopher Kings-LynneDate: 2004-11-25 07:06:27
Subject: Re: [PERFORM] HELP speed up my Postgres

pgsql-general by date

Next:From: Net Virtual Mailing ListsDate: 2004-11-25 08:42:40
Subject: why use SCHEMA? any real-world examples?
Previous:From: Christopher Kings-LynneDate: 2004-11-25 07:06:27
Subject: Re: [PERFORM] HELP speed up my Postgres

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group