Re: []performance issues
Yaroslav Dmitriev <yar@warlock.ru>
From: Yaroslav Dmitriev <yar@warlock.ru>
To: Christopher Kings-Lynne <chriskl@familyhealth.com.au>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2002-08-02T11:48:39Z
Lists: pgsql-hackers, pgsql-general
Christopher Kings-Lynne wrote: >Doing a row count requires a sequential scan in Postgres. > >Try creating another summary table that just has one row and one column and >is an integer. > > I have THREE summary tables derived from "stats" with different levels of aggregation. They work quite fast, But: 1) Summary tables grow too 2) There are requests which cannot be predicted, so they involve the "stats" table itself. So I am still interested in PostgreSQL's ability to deal with multimillon records tables. Best regards, Yar.