Talk About Network

Google


Register and Login
Nick
Password
Register create new account Sign up is FREE and you can post replies, new topics, bookmark posts and more!
Recover lost password


Data Bases > Pgsql Performance > Re: db size
Latest [ Topics | Posts ] Archive Post A New Topic Post a Reply
<< Topic < Post Post 16 of 17 Topic 3990 of 4424
Post > Topic >>

Re: db size

by adrian@[EMAIL PROTECTED] (Adrian Moisey) Apr 17, 2008 at 10:43 AM

Hi

>> INFO:  "blahxxx": scanned 27 of 27 pages, containing 1272 live rows 
>> and 0 dead rows; 1272 rows in sample, 1272 estimated total rows
> 
> This is a small table that takes up 27 pages and it scanned all of them.

> You have 1272 rows in it and none of them are dead (i.e. deleted/updated

> but still taking up space).

I had a look through a few other tables...:

INFO:  "table1": scanned 22988 of 22988 pages, containing 2713446 live 
rows and 895662 dead rows; 45000 rows in sample, 2713446 estimate
d total rows

INFO:  "table2": scanned 24600 of 24600 pages, containing 270585 live 
rows and 65524 dead rows; 45000 rows in sample, 270585 estimated total
rows

Is that dead rows an issue?  Should I try clean it out?  Will it improve 
performance ?


-- 
Adrian Moisey
Systems Administrator | CareerJunction | Your Future Starts Here.
Web: www.careerjunction.co.za | Email: adrian@[EMAIL PROTECTED]
 +27 21 686 6820 | Mobile: +27 82 858 7830 | Fax: +27 21 686 6842

-- 
Sent via pgsql-performance mailing list (pgsql-performance@[EMAIL PROTECTED]
)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance
 




 17 Posts in Topic:
db size
adrian@[EMAIL PROTECTED]   2008-04-14 08:29:56 
Re: db size
VGopal@[EMAIL PROTECTED]   2008-04-13 23:55:14 
Re: db size
craig@[EMAIL PROTECTED]   2008-04-14 16:37:54 
Re: db size
lists@[EMAIL PROTECTED]   2008-04-14 11:18:19 
Re: db size
adrian@[EMAIL PROTECTED]   2008-04-14 11:21:59 
Re: db size
lists@[EMAIL PROTECTED]   2008-04-14 11:33:54 
Re: db size
adrian@[EMAIL PROTECTED]   2008-04-14 11:44:12 
Re: db size
lists@[EMAIL PROTECTED]   2008-04-14 12:01:52 
Re: db size
adrian@[EMAIL PROTECTED]   2008-04-15 09:33:06 
Re: db size
craig@[EMAIL PROTECTED]   2008-04-14 18:40:39 
Re: db size
wmoran@[EMAIL PROTECTED]   2008-04-14 09:12:12 
Re: db size
wmoran@[EMAIL PROTECTED]   2008-04-15 07:12:22 
Re: db size
adrian@[EMAIL PROTECTED]   2008-04-17 08:28:42 
Re: db size
dev@[EMAIL PROTECTED] (R  2008-04-17 09:15:04 
Re: db size
adrian@[EMAIL PROTECTED]   2008-04-17 10:37:25 
Re: db size
adrian@[EMAIL PROTECTED]   2008-04-17 10:43:47 
Re: db size
dev@[EMAIL PROTECTED] (R  2008-04-17 09:52:31 

Post A Reply:
  Go here to Signup

AddThis Feed Button


About - Advertising - Contact - Frequently Asked Questions - Privacy Policy - Terms of Use - Signup

Contact
tan12V112 Mon Dec 1 7:43:17 CST 2008.