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

From Alvaro Herrera
Subject Re: Sorting performance vs. MySQL
Date
Msg-id 20100222192756.GH4629@alvh.no-ip.org
Whole thread Raw
In response to Sorting performance vs. MySQL  (Yang Zhang <yanghatespam@gmail.com>)
Responses Re: Sorting performance vs. MySQL  (Yang Zhang <yanghatespam@gmail.com>)
List pgsql-general
Yang Zhang escribió:
> I have the exact same table of data in both MySQL and Postgresql. In Postgresql:

I just noticed two things:

[snip lots of stuff]

1.

> ) ENGINE=MyISAM AUTO_INCREMENT=50410166 DEFAULT CHARSET=latin1

You're doing a comparison to MyISAM.


2.

>   select * from metarelcloud_transactionlog order by transactionid;

You're reading the whole table.

This is unlikely to fly very far.  I suggest you try some query that's
actually going to be used in the real world.

--
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

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