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 Name | 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 |
NoteGreenplum Database applies policies stored in
pg_policy
only whenpg_class.relrowsecurity
is set for their table.
Parent topic: System Catalogs Definitions