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Showing content from https://www.postgresql.org/docs/current/static/sql-droppolicy.html below:

PostgreSQL: Documentation: 17: DROP POLICY

DROP POLICY — remove a row-level security policy from a table

DROP POLICY [ IF EXISTS ] name ON table_name [ CASCADE | RESTRICT ]

DROP POLICY removes the specified policy from the table. Note that if the last policy is removed for a table and the table still has row-level security enabled via ALTER TABLE, then the default-deny policy will be used. ALTER TABLE ... DISABLE ROW LEVEL SECURITY can be used to disable row-level security for a table, whether policies for the table exist or not.

IF EXISTS

Do not throw an error if the policy does not exist. A notice is issued in this case.

name

The name of the policy to drop.

table_name

The name (optionally schema-qualified) of the table that the policy is on.

CASCADE
RESTRICT

These key words do not have any effect, since there are no dependencies on policies.

To drop the policy called p1 on the table named my_table:

DROP POLICY p1 ON my_table;

DROP POLICY is a PostgreSQL extension.

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