how delete/insert/update affects select performace? - Mailing list pgsql-performance

From Anibal David Acosta
Subject how delete/insert/update affects select performace?
Date
Msg-id 004301cc6e26$015a75e0$040f61a0$@devshock.com
Whole thread Raw
Responses Re: how delete/insert/update affects select performace?  ("Tomas Vondra" <tv@fuzzy.cz>)
Re: how delete/insert/update affects select performace?  ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>)
List pgsql-performance

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!

 

 

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