Find user-defined rules for rewriting data manipulation language statements. Rules should be used only for the tasks that cannot be achieved in a declarative manner, i.e., for example, by declaring a constraint.
Notes
Rules are specific to PostgreSQL and thus it is not possible to get information about these from the INFORMATION_SCHEMA views. The query does not find SELECT rules that are created automatically by the system to support views.
Type
General (Overview of some aspect of the database.)
SELECT
r.schemaname AS rule_schema,
r.tablename AS host_table,
r.rulename AS rule_name,
r.definition AS rule_definition
FROM
pg_catalog.pg_rules r,
pg_catalog.pg_namespace n,
pg_catalog.pg_authid u
WHERE
r.schemaname = n.nspname AND
n.nspowner = u.oid AND
(n.nspname = 'public' OR u.rolname <> 'postgres')
ORDER BY schemaname, tablename, rulename;
Collections
This query belongs to the following collections:
Name
Description
Find problems by overview
Queries that results point to different aspects of database that might have problems. A human reviewer has to decide based on the results as to whether there are problems or not .
Categories
This query is classified under the following categories:
Name
Description
Triggers and rules
Queries of this category provide information about triggers and rules in a database.