-- Page checksum status: the verifier must either compare successfully or
-- report that the cluster was initialized without data checksums.
CREATE TABLE page_status_reg (id integer PRIMARY KEY, payload text);
INSERT INTO page_status_reg VALUES (1, 'one'), (2, 'two');
CHECKPOINT;

SELECT pg_page_checksum_status('page_status_reg'::regclass, 0)
       IN ('ok', 'checksums_disabled') AS status_known;

SELECT pg_page_checksum('page_status_reg'::regclass, 0)
       BETWEEN 0 AND 65535 AS page_checksum_16bit;

DROP TABLE page_status_reg;