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.

column	type	references	description
oid	oid		The object ID
polname	name		The name of the policy
polerelid	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
polpermissive	boolean		Is the policy permissive or restrictive?
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: OushuDB applies policies stored in pg_policy only when pg_class.relrowsecurity is set for their table.