CREATE TABLE test_ttl( ts TIMESTAMP TIME INDEX, val INT, PRIMARY KEY (`val`) ) WITH (ttl = 'instant'); SHOW CREATE TABLE test_ttl; INSERT INTO test_ttl VALUES (now(), 1), (now(), 2), (now(), 3); SELECT val from test_ttl ORDER BY val; -- SQLNESS SLEEP 2s ADMIN flush_table('test_ttl'); ADMIN compact_table('test_ttl'); SELECT val from test_ttl ORDER BY val; ALTER TABLE test_ttl UNSET 'ttl'; INSERT INTO test_ttl VALUES (now(), 1), (now(), 2), (now(), 3); SELECT val from test_ttl ORDER BY val; DROP TABLE test_ttl; CREATE TABLE test_ttl( ts TIMESTAMP TIME INDEX, val INT, PRIMARY KEY (`val`) ) WITH (ttl = '1s'); SHOW CREATE TABLE test_ttl; INSERT INTO test_ttl VALUES (now(), 1), (now(), 2), (now(), 3); SELECT val from test_ttl ORDER BY val; ADMIN flush_table('test_ttl'); ADMIN compact_table('test_ttl'); SELECT val from test_ttl ORDER BY val; -- SQLNESS SLEEP 2s ADMIN flush_table('test_ttl'); ADMIN compact_table('test_ttl'); SELECT val from test_ttl ORDER BY val; ALTER TABLE test_ttl SET ttl = '1d'; INSERT INTO test_ttl VALUES (now(), 1), (now(), 2), (now(), 3); SELECT val from test_ttl ORDER BY val; ALTER TABLE test_ttl SET ttl = 'instant'; ADMIN flush_table('test_ttl'); ADMIN compact_table('test_ttl'); SELECT val from test_ttl ORDER BY val; -- to make sure alter back and forth from duration to/from instant wouldn't break anything ALTER TABLE test_ttl SET ttl = '1s'; INSERT INTO test_ttl VALUES (now(), 1), (now(), 2), (now(), 3); SELECT val from test_ttl ORDER BY val; -- SQLNESS SLEEP 2s ADMIN flush_table('test_ttl'); ADMIN compact_table('test_ttl'); SELECT val from test_ttl ORDER BY val; DROP TABLE test_ttl;