pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Anibal David Acosta <aa@devshock.com>
To: pgsql-performance@postgresql.org
Subject: how delete/insert/update affects select performace?
Date: Thu, 8 Sep 2011 08:51:13 -0400
Message-ID: <004301cc6e26$015a75e0$040f61a0$@devshock.com> (raw)

Hi!

 

I have a table not too big but with aprox. 5 millions of rows, this table
must have 300 to 400 select per second. But also must have 10~20
delete/insert/update per second.

 

So, I need to know if the insert/delete/update really affect the select
performance and how to deal with it.

 

The table structure is very simple:

 

account_id integer (PK)

service_id integer (PK)

enabled char(1)

 

The index created on this has the same 3 columns.

 

Most of time the table has more insert or delete than update, when update
occur the column changed is enabled;

 

Thanks!

 

 

view thread (10+ messages)  latest in thread

Message-ID: <004301cc6e26$015a75e0$040f61a0$@devshock.com>
Permalink:  ../004301cc6e26$015a75e0$040f61a0$@devshock.com/
Also on:    postgresql.org/message-id/004301cc6e26$015a75e0$040f61a0$@devshock.com

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: aa@devshock.com
  Subject: Re: how delete/insert/update affects select performace?
  In-Reply-To: <004301cc6e26$015a75e0$040f61a0$@devshock.com>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox