Re: Sorting performance vs. MySQL - Mailing list pgsql-general

From Richard Broersma
Subject Re: Sorting performance vs. MySQL
Date
Msg-id 396486431002221030o74166784wf06bf0e909a29496@mail.gmail.com
Whole thread Raw
In response to Re: Sorting performance vs. MySQL  (Frank Heikens <frankheikens@mac.com>)
Responses Re: Sorting performance vs. MySQL  (Yang Zhang <yanghatespam@gmail.com>)
Re: Sorting performance vs. MySQL  (Frank Heikens <frankheikens@mac.com>)
List pgsql-general
On Mon, Feb 22, 2010 at 10:17 AM, Frank Heikens <frankheikens@mac.com> wrote:

> There is no index on the column transactionid in your PostgreSQL-table, as
> there is in your MySQL-table. This explains the difference.
>
> CREATE INDEX i_transactionid ON public.metarelcloud_transactionlog
> (transactionid);

Does an index help a sort operation in PostgreSQL?


--
Regards,
Richard Broersma Jr.

Visit the Los Angeles PostgreSQL Users Group (LAPUG)
http://pugs.postgresql.org/lapug

pgsql-general by date:

Previous
From: Raymond O'Donnell
Date:
Subject: Re: Complex SELECT Statement help needed
Next
From: Yang Zhang
Date:
Subject: Re: Sorting performance vs. MySQL