eg.
CREATE VIEW pg_rules AS
SELECT
N.nspname AS schemaname,
C.relname AS tablename,
R.rulename AS rulename,
pg_get_ruledef(R.oid) AS definition
FROM (pg_rewrite R JOIN pg_class C ON (C.oid = R.ev_class))
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE R.rulename != '_RETURN';Chris
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