51.38. 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 51.38. 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

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

Policies stored in pg_policy are applied only when pg_class.relrowsecurity is set for their table.