The view pg_rules provides access to useful information about query rewrite rules.
Table 50-74. pg_rules Columns
|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.