Count for pagination - Mailing list pgsql-general

From Jason Long
Subject Count for pagination
Date
Msg-id 1302281903.7116.45.camel@localhost.localdomain
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Responses Re: Count for pagination
Re: Count for pagination
List pgsql-general
The main search screen of my application has pagination.

I am basically running 3 queries with the same where clause.

1.  Totals for the entire results(not just the number of rows on the first page)
   a.  <300 ms
2.   Subset of the total records on that page.
   a.  1-2 sec
3.   Count of the total records for the pagination to show the number of pages
  a. 1-2 sec

The queries are generated by Hibernate and I am looking to rewrite them in native SQL
to improve performance.

Any suggestions on how to get the count of all records that could be returned and only
a subset of those records for that  page in an optimized fashion?  I have no problem using
a widow query or a Postgres specific feature as my app only runs on Postgres.

-- 
Thank you for your time,

Jason Long
CEO and Chief Software Engineer
BS Physics, MS Chemical Engineering
http://www.octgsoftware.com
HJBug Founder and President
http://www.hjbug.com

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