Utilizzando le informazioni di Andy Lester, sono stato in grado di elaborare le seguenti domande per recuperare le informazioni di cui avevo bisogno.
Ottieni tabelle a cui fanno riferimento le chiavi esterne:
SELECT cl2.relname AS ref_table
FROM pg_constraint as co
JOIN pg_class AS cl1 ON co.conrelid=cl1.oid
JOIN pg_class AS cl2 ON co.confrelid=cl2.oid
WHERE co.contype='f' AND cl1.relname='TABLENAME'
ORDER BY cl2.relname;
Ottieni tabelle a cui fanno riferimento una vista o regole da una tabella:
SELECT cl_d.relname AS ref_table
FROM pg_rewrite AS r
JOIN pg_class AS cl_r ON r.ev_class=cl_r.oid
JOIN pg_depend AS d ON r.oid=d.objid
JOIN pg_class AS cl_d ON d.refobjid=cl_d.oid
WHERE cl_d.relkind IN ('r','v') AND cl_r.relname='TABLENAME'
GROUP BY cl_d.relname
ORDER BY cl_d.relname;