The view pg_rules provides access to useful information about query rewrite rules.

    The pg_rules view excludes the ON SELECT rules of views and materialized views; those can be seen in pg_views and pg_matviews.

    column type references description
    schemaname name pg_namespace.nspname Name of schema containing table
    tablename name pg_class.relname Name of table the rule is for
    rulename name pg_rewrite.rulename Name of rule
    definition text Rule definition (a reconstructed creation command)

    Parent topic: System Catalogs Definitions