ALTER ONLINE TABLE IF EXISTS `test_db`.`t0` WAIT 10.5 DROP PARTITION IF EXISTS `p1`, `p2`, `p3` PARTITION BY SYSTEM_TIME LIMIT 10 IN (SELECT v1 FROM `test_db`.`t1`) BETWEEN '2023-01-01 00:00:00' AND '2023-12-31 23:59:59' NOT REGEXP '^[0-9]+$' IN ('a', 'b', 'c') IS FALSE STARTS TIMESTAMP '2023-01-01 00:00:00' AUTO;
