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 |
| 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[] |
| 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 whenpg_class
.relrowsecurity
is set for their table.
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