| PostgreSQL 9.6.21 Documentation | |||
|---|---|---|---|
| Prev | Up | Chapter 50. System Catalogs | Next |
The catalog pg_policy stores row level security policies for tables. A policy includes the kind of command that it applies to (possibly all commands), the roles that it applies to, the expression to be added as a security-barrier qualification to queries that include the table, and the expression to be added as a WITH CHECK option for queries that attempt to add new records to the table.
Table 50-37. pg_policy Columns
| Name | Type | References | Description |
|---|---|---|---|
| polname | name | The name of the policy | |
| polrelid | oid | pg_class.oid | The table to which the policy applies |
| polcmd | char | The command type to which the policy is applied: r for SELECT, a for INSERT, w for UPDATE, d for DELETE, or * for all | |
| polroles | oid[] | pg_authid.oid | The roles to which the policy is applied |
| polqual | pg_node_tree | The expression tree to be added to the security barrier qualifications for queries that use the table | |
| polwithcheck | pg_node_tree | The expression tree to be added to the WITH CHECK qualifications for queries that attempt to add rows to the table |
Note: Policies stored in pg_policy are applied only when pg_class.relrowsecurity is set for their table.
If you see anything in the documentation that is not correct, does not match your experience with the particular feature or requires further clarification, please use this form to report a documentation issue.