Re: A Table's Primary Key Listing

Thanks for your query :)

But it only shows the first of the primary keys of tables having multiple
primary keys :)

This is apparently because of the pg_index.indkey[0] thing, so how can we
manage this query in order to get all of the keys :)


Thanks in advance, 
Roger Tannous.


--- "D'Arcy J.M. Cain" <darcy@druid.net> wrote:

> On Thu, 18 Aug 2005 07:36:22 -0700 (PDT)
> Roger Tannous <roger77_lb@yahoo.com> wrote:
> > Is there any means to get a list of the Primary Keys (or simply the
> > Primary Key if there's only one :) ) for a given table using an SQL
> query
> 
> Here is what I do in PyGreSQL:
> 
> SELECT pg_namespace.nspname, pg_class.relname,pg_attribute.attname
>   FROM pg_class
> JOIN pg_namespace ON pg_namespace.oid=pg_class.relnamespace AND
>     pg_namespace.nspname NOT LIKE 'pg_%'
> JOIN pg_attribute ON pg_attribute.attrelid=pg_class.oid AND
>     pg_attribute.attisdropped='f'
> JOIN pg_index ON pg_index.indrelid=pg_class.oid AND
>     pg_index.indisprimary='t' AND
>     pg_index.indkey[0]=pg_attribute.attnum
> 
> -- 
> D'Arcy J.M. Cain <darcy@druid.net>         |  Democracy is three wolves
> http://www.druid.net/darcy/                |  and a sheep voting on
> +1 416 425 1212     (DoD#0082)    (eNTP)   |  what's for dinner.
> 


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