Re: Finding the primary key of tables - Mailing list pgsql-general

On Tue, 2010-08-03 at 16:13 -0300, George Silva wrote:
> I'm building a function which needs to know what is the primary key of
> a
> certain table (all in pgplsql).
>
> I was using select * from information_schema.key_column_usage where
> table_schema='foo' and table_name = 'aaa'; but that will give me
> multiple
> results in case of additional keys in the table.
>
> Any suggestions?

See pg_index.indisprimary column. If it is true, then the it is the PK
of given table.

Regards,
--
Devrim GÜNDÜZ
PostgreSQL Danışmanı/Consultant, Red Hat Certified Engineer
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