Re: Question on vacuumdb - Mailing list pgsql-performance

From Bruno Wolff III
Subject Re: Question on vacuumdb
Date
Msg-id 20050418195819.GB4961@wolff.to
Whole thread Raw
In response to Question on vacuumdb  (Bill Chandler <billybobc1210@yahoo.com>)
List pgsql-performance
On Mon, Apr 18, 2005 at 12:27:08 -0700,
  Bill Chandler <billybobc1210@yahoo.com> wrote:
> All,
>
> If I run the command "vacuumdb mydb" I understand that
> it does some disk space recovery (but not as much as
> "vacuumdb --full mydb").

You are better off not using vacuum full unless some unusual event has
bloated your database. By running normal vacuums often enough (and with
a large enough fsm setting) your database should reach a steady state size.

> Question: if I run the command "vacuumdb --analyze
> mydb" does it still do the aforementioned disk space
> recovery AS WELL AS update query planning statistics?
> Or are those two completely separate operations
> requiring separate invocations of 'vacuumdb'.

It is better to do both with one command.

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