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* cluster index on primary key
@ 2007-06-11 14:31 Sabin Coanda <sabin.coanda@deuromedia.ro>
2007-06-11 14:44 ` Re: cluster index on primary key Rodrigo De León <rdeleonp@gmail.com>
0 siblings, 1 reply; 2+ messages in thread
From: Sabin Coanda @ 2007-06-11 14:31 UTC (permalink / raw)
To: pgsql-sql
Hi there,
I'd like to know when I create a primary key on a table, does postgres will
create automatically an index on that table related to the primary key
columns, or I have to create it explicitly ?
If I have to create it explicitly, suppose I have tables with a serial
primary key, or link tables with multiple column primary key. How is
recommended for the two cases: to create an index on the primary key unique,
or cluster or both or with none of the two options ?
TIA,
Sabin
^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: cluster index on primary key
2007-06-11 14:31 cluster index on primary key Sabin Coanda <sabin.coanda@deuromedia.ro>
@ 2007-06-11 14:44 ` Rodrigo De León <rdeleonp@gmail.com>
0 siblings, 0 replies; 2+ messages in thread
From: Rodrigo De León @ 2007-06-11 14:44 UTC (permalink / raw)
To: pgsql-sql@postgresql.org, "Sabin Coanda" <sabin.coanda@deuromedia.ro>
On 6/11/07, Sabin Coanda <sabin.coanda@deuromedia.ro> wrote:
> I'd like to know when I create a primary key on a table, does postgres will
> create automatically an index on that table related to the primary key
> columns, or I have to create it explicitly ?
^ permalink raw reply [nested|flat] 2+ messages in thread
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2007-06-11 14:31 cluster index on primary key Sabin Coanda <sabin.coanda@deuromedia.ro>
2007-06-11 14:44 ` Rodrigo De León <rdeleonp@gmail.com>
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