Re: Large databases, performance

On 9 Oct 2002 at 10:00, Manfred Koizar wrote:

> On Mon, 07 Oct 2002 15:07:29 +0530, "Shridhar Daithankar"
> <shridhar_daithankar@persistent.co.in> wrote:
> >Only worry is database size. Postgresql is 111GB v/s 87 GB for mysql.
>
> Shridhar,
>
> here is an implementation of a set of user types: char3, char4,
> char10.  Put the attached files into a new directory contrib/fixchar,
> make, make install, and run fixchar.sql through psql.  Then create
> your table as
>     CREATE TABLE tbl (
>     type        int,
>     esn        char10,
>     min        char10,
>     datetime    timestamp,
>     opc0        char3,
>     ...
>     rest        char4,
>     field0        int,
>     field1        char4,
>     ...
>     )
>
> This should save 76 bytes per heap tuple and 12 bytes per index tuple,
> giving a database size of ~ 76 GB.  I'd be very interested how this
> affects performance.
>
> Code has been tested for v7.2, it crashes on v7.3 beta 1.  If this is
> a problem, let me know.

Thank you very much for this. I would certainly give it a try. Please be
patient as next test is scheuled on monday.

Bye
 Shridhar

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love, n.:    When it's growing, you don't mind watering it with a few tears.