Got it thanks!
On Fri, May 8, 2009 at 2:57 PM, Christophe <xof@thebuild.com> wrote:
>
> On May 8, 2009, at 11:25 AM, John R Pierce wrote:
>>
>> you read your tables by column, rather than by row??
>> SQL queries are inherently row oriented, the fundamental unit of storage
>> is a 'tuple', which is a representation of a row of a table.
>
> I believe what is referring to is the disk storage organization, clustering
> a single column from multiple rows together onto a page. For example, if
> your typical use of a table is to read one particular column from a large
> number of rows, this could (in theory) improve performance.
>
> AFAIK, PostgreSQL doesn't support this.
>
> --
> Sent via pgsql-general mailing list (pgsql-general@postgresql.org)
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-general
>
