Goal 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.
License MIT (opens in new tab)
Data Source system catalog only
SQL Query 
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:

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 .

NameDescription
Find problems by overviewQueries 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:

Triggers and rules

Queries of this category provide information about triggers and rules in a database.

NameDescription
Triggers and rulesQueries of this category provide information about triggers and rules in a database.