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

Table 49-72. pg_rules Columns

Name 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)

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