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ALTER_POLICY - change the definition of a row-level security policy

Compatibility

ALTERPOLICY is a PostgreSQL extension.

Description

ALTERPOLICY changes the definition of an existing row-level security policy. Note that ALTERPOLICY only allows the set of roles to which the policy applies and the USING and WITH CHECK expressions to be modified. To change other properties of a policy, such as the command to which it applies or whether it is permissive or restrictive, the policy must be dropped and recreated. To use ALTERPOLICY, you must own the table that the policy applies to. In the second form of ALTERPOLICY, the role list, using_expression, and check_expression are replaced independently if specified. When one of those clauses is omitted, the corresponding part of the policy is unchanged.

Name

ALTER_POLICY - change the definition of a row-level security policy

Parameters

name The name of an existing policy to alter. table_name The name (optionally schema-qualified) of the table that the policy is on. new_name The new name for the policy. role_name The role(s) to which the policy applies. Multiple roles can be specified at one time. To apply the policy to all roles, use PUBLIC. using_expression The USING expression for the policy. See CREATE POLICY (CREATE_POLICY(7)) for details. check_expression The WITH CHECK expression for the policy. See CREATE POLICY (CREATE_POLICY(7)) for details.

See Also

CREATE POLICY (CREATE_POLICY(7)), DROP POLICY (DROP_POLICY(7)) PostgreSQL 17.5 2025 ALTERPOLICY(7)

Synopsis

ALTER POLICY name ON table_name RENAME TO new_name ALTER POLICY name ON table_name [ TO { role_name | PUBLIC | CURRENT_ROLE | CURRENT_USER | SESSION_USER } [, ...] ] [ USING ( using_expression ) ] [ WITH CHECK ( check_expression ) ]

See Also