| From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
|---|---|
| To: | Tanmay Deshpande <tp(dot)deshpande07(at)gmail(dot)com> |
| Cc: | PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: About adding an attribute to pg_attibute |
| Date: | 2014-03-25 00:28:22 |
| Message-ID: | CAB7nPqSmQioc8ewrrs+UHdHpnbt9t3tNEdy+beiVtg56FFjjVg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Mar 25, 2014 at 2:44 AM, Tanmay Deshpande
<tp(dot)deshpande07(at)gmail(dot)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
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