Обсуждение: About adding an attribute to pg_attibute

<div dir="ltr">We are trying add columnar support to postgreSQL and for that we need identify each column in each
relationby an oid. So my doubt is how do we add an attribute/ a column to catalog pg_attribute ?<br /></div> 

On Tue, Mar 25, 2014 at 2:44 AM, Tanmay Deshpande
<tp.deshpande07@gmail.com> wrote:
> We are trying add columnar support to postgreSQL and for that we need
> identify each column in each relation by an oid. So my doubt is how do we
> add an attribute/ a column to catalog pg_attribute ?
You can identify already uniquely columns in pg_attribute with the
couple (attrelid,attnum) or even (attrelid,attname). Using an OID to
do what already exists will just add complication in your application.
Regards,
-- 
Michael

On 03/25/2014 01:44 AM, Tanmay Deshpande wrote:
> We are trying add columnar support to postgreSQL and for that we need
> identify each column in each relation by an oid. So my doubt is how do
> we add an attribute/ a column to catalog pg_attribute ?

Is this some kind of class project?

I've seen at least three people post short, uninformative questions
about somewhat similar topics to this mailing list, all from gmail
addresses, in the last couple of days.

Rajashree Mandaogane <rajashree.28m@gmail.com>
Swapnil Bhoite <swapnil.temp28@gmail.com>
Tanmay Deshpande <tp.deshpande07@gmail.com>

Ah, yes, it is something like that:

http://www.postgresql.org/message-id/CAPn0L0OXP9AFNR7UHWzKytVzzyY8Z-aqgFNPNabK-cGsCgE26w@mail.gmail.com

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-- Craig Ringer                   http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services