分区守护任务管理的表

> show create table metric_daily_data\G
*************************** 1. row ***************************
       Table: metric_daily_data
Create Table: CREATE TABLE `metric_daily_data` (
  `series_id` bigint(20) NOT NULL COMMENT '指标序列ID',
  `timestamp` bigint(20) NOT NULL COMMENT '时间戳，单位(秒)',
  `value` double NOT NULL COMMENT '值',
  PRIMARY KEY (`series_id`, `timestamp`)
) DEFAULT CHARSET = utf8mb4 COMMENT = '监控 daily 指标数据'
 partition by range columns(`timestamp`)
(partition DUMMY values less than (0),
partition p2019 values less than (1577836800),
partition p2020 values less than (1609459200),
partition p2021 values less than (1640995200),
partition p2022 values less than (1672531200),
partition p2023 values less than (1704067200));