Re: Primary key column numbers...

Justin Tocci <jtocci@tocci.org> writes:
> SELECT indkey
> FROM (SELECT relname, indkey
> FROM pg_catalog.pg_index join pg_catalog.pg_class
>      ON pg_index.indrelid = pg_class.oid
> WHERE indisprimary=true
> UNION
> SELECT viewname, ('{1}')::int2vector[] as indkey
> FROM pg_catalog.pg_views ) t
> WHERE relname = '????'

> Result: ERROR: UNION/INTERSECT/EXCEPT could not convert type
> int2vector[] to int2vector

I think you want just

  SELECT viewname, '1'::int2vector as indkey

for the second arm of the union.

            regards, tom lane