ALTER POLICY name ON table_name [ RENAME TO new_name ] [ TO { role_name | PUBLIC | CURRENT_USER | SESSION_USER } [, ...] ] [ USING ( using_expression ) ] [ WITH CHECK ( check_expression ) ]
ALTER POLICY changes the definition of an existing policy.
To use ALTER POLICY, you must own the table that the policy applies to.
The name of an existing policy to alter.
The name (optionally schema-qualified) of the table that the policy is on.
The new name for the policy.
The role to which the policy applies. Multiple roles can be specified at one time. To apply the policy to all roles, use PUBLIC, which is also the default.
The USING expression for the policy. This expression will be added as a security-barrier qualification to queries which use the table automatically. If multiple policies are being applied for a given table then they are all combined and added using OR. The USING expression applies to records which are being retrieved from the table.
The with-check expression for the policy. This expression will be added as a WITH CHECK OPTION qualification to queries which use the table automatically. If multiple policies are being applied for a given table then they are all combined and added using OR. The WITH CHECK expression applies to records which are being added to the table.