50.37. pg_policy

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.

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