Re: Which version will this run on?

Mads Lie Jensen <mads@gartneriet.dk> writes:
> SELECT  pg_catalog.pg_get_constraintdef(r.oid, true) AS condef
> FROM pg_catalog.pg_constraint r,
>               pg_catalog.pg_class c
> WHERE c.oid=r.conrelid
>               AND r.contype = 'f'
>               AND c.relname = 'table_name'

> which gives me the foreign keys of a given table in the database.
> It is working perfectly on my 8.4.2-version of pstgresql.

> But what other versions of postgresql will it run on?

A quick test says that it works back to 7.4, which is the oldest
version that is supported at all anymore.  I don't think you need
to worry too much.

            regards, tom lane