如何解决在 MySQL 中删除分区？
我在 MysqL 方面有点蹩脚，但我需要它来运行 Zabbix。 由于数据库很大，我正在使用基于以下脚本的分区。
https://bestmonitoringtools.com/zabbix-partitioning-tables-on-mysql-database/ （完整脚本在页面末尾）
我所拥有的，只是一个小问题。这个脚本创建的分区比我真正需要的要多。不是脚本错误，因为之前指定的分区数量过多。
所以，我只使用前 31 个分区，这些分区被新数据覆盖。
MariaDB [(none)]> SELECT PARTITION_ORDINAL_POSITION,TABLE_ROWS,PARTITION_METHOD FROM information_schema.PARTITIONS WHERE TABLE_SCHEMA = 'zabbix' AND TABLE_NAME = 'history_uint';
+----------------------------+------------+------------------+
| PARTITION_ORDINAL_POSITION | TABLE_ROWS | PARTITION_METHOD |
+----------------------------+------------+------------------+
| 1 | 72866976 | RANGE |
| 2 | 72006233 | RANGE |
| 3 | 72172620 | RANGE |
| 4 | 71750837 | RANGE |
| 5 | 72436805 | RANGE |
| 6 | 70060071 | RANGE |
| 7 | 72177768 | RANGE |
| 8 | 72818115 | RANGE |
| 9 | 72506332 | RANGE |
| 10 | 70107634 | RANGE |
| 11 | 72412529 | RANGE |
| 12 | 72569999 | RANGE |
| 13 | 72017589 | RANGE |
| 14 | 72199641 | RANGE |
| 15 | 70607394 | RANGE |
| 16 | 72936268 | RANGE |
| 17 | 72417441 | RANGE |
| 18 | 72442571 | RANGE |
| 19 | 72050858 | RANGE |
| 20 | 72011472 | RANGE |
| 21 | 72023456 | RANGE |
| 22 | 72575896 | RANGE |
| 23 | 71883021 | RANGE |
| 24 | 72475875 | RANGE |
| 25 | 72492657 | RANGE |
| 26 | 72040893 | RANGE |
| 27 | 72115739 | RANGE |
| 28 | 72122055 | RANGE |
| 29 | 71615232 | RANGE |
| 30 | 72075029 | RANGE |
| 31 | 23110328 | RANGE |
| 32 | 0 | RANGE |
| 33 | 0 | RANGE |
| 34 | 0 | RANGE |
| 35 | 0 | RANGE |
| 36 | 0 | RANGE |
| 37 | 0 | RANGE |
| 38 | 0 | RANGE |
| 39 | 0 | RANGE |
| 40 | 0 | RANGE |
| 41 | 0 | RANGE |
| 42 | 0 | RANGE |
| 43 | 0 | RANGE |
| 44 | 0 | RANGE |
| 45 | 0 | RANGE |
| 46 | 0 | RANGE |
| 47 | 0 | RANGE |
| 48 | 0 | RANGE |
| 49 | 0 | RANGE |
| 50 | 0 | RANGE |
| 51 | 0 | RANGE |
| 52 | 0 | RANGE |
| 53 | 0 | RANGE |
| 54 | 0 | RANGE |
| 55 | 0 | RANGE |
| 56 | 0 | RANGE |
| 57 | 0 | RANGE |
| 58 | 0 | RANGE |
| 59 | 0 | RANGE |
| 60 | 0 | RANGE |
+----------------------------+------------+------------------+
60 rows in set (0.001 sec)
完成
MariaDB [(none)]> select TABLE_CATALOG,TABLE_SCHEMA,TABLE_NAME,PARTITION_NAME,PARTITION_DESCRIPTION,PARTITION_ORDINAL_POSITION,PARTITION_METHOD,PARTITION_EXPRESSION,CREATE_TIME,UPDATE_TIME FROM information_schema.partitions WHERE TABLE_SCHEMA='zabbix' AND TABLE_NAME = 'history_uint' AND PARTITION_NAME IS NOT NULL;
+---------------+--------------+--------------+----------------+-----------------------+----------------------------+------------------+----------------------+---------------------+---------------------+
| TABLE_CATALOG | TABLE_SCHEMA | TABLE_NAME | PARTITION_NAME | PARTITION_DESCRIPTION | PARTITION_ORDINAL_POSITION | PARTITION_METHOD | PARTITION_EXPRESSION | CREATE_TIME | UPDATE_TIME |
+---------------+--------------+--------------+----------------+-----------------------+----------------------------+------------------+----------------------+---------------------+---------------------+
| def | zabbix | history_uint | p202105050000 | 1620252000 | 1 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-06 00:00:01 |
| def | zabbix | history_uint | p202105060000 | 1620338400 | 2 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-07 00:00:01 |
| def | zabbix | history_uint | p202105070000 | 1620424800 | 3 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-08 00:00:01 |
| def | zabbix | history_uint | p202105080000 | 1620511200 | 4 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-09 00:00:01 |
| def | zabbix | history_uint | p202105090000 | 1620597600 | 5 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-10 00:00:01 |
| def | zabbix | history_uint | p202105100000 | 1620684000 | 6 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-11 00:00:02 |
| def | zabbix | history_uint | p202105110000 | 1620770400 | 7 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-12 00:00:01 |
| def | zabbix | history_uint | p202105120000 | 1620856800 | 8 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-13 00:00:02 |
| def | zabbix | history_uint | p202105130000 | 1620943200 | 9 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-14 00:00:01 |
| def | zabbix | history_uint | p202105140000 | 1621029600 | 10 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-15 00:00:01 |
| def | zabbix | history_uint | p202105150000 | 1621116000 | 11 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-16 00:00:12 |
| def | zabbix | history_uint | p202105160000 | 1621202400 | 12 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-17 00:00:01 |
| def | zabbix | history_uint | p202105170000 | 1621288800 | 13 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-18 00:00:01 |
| def | zabbix | history_uint | p202105180000 | 1621375200 | 14 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-19 00:00:02 |
| def | zabbix | history_uint | p202105190000 | 1621461600 | 15 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-20 00:00:01 |
| def | zabbix | history_uint | p202105200000 | 1621548000 | 16 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-21 00:00:01 |
| def | zabbix | history_uint | p202105210000 | 1621634400 | 17 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-22 00:00:01 |
| def | zabbix | history_uint | p202105220000 | 1621720800 | 18 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-23 00:00:01 |
| def | zabbix | history_uint | p202105230000 | 1621807200 | 19 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-24 00:00:01 |
| def | zabbix | history_uint | p202105240000 | 1621893600 | 20 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-25 00:00:01 |
| def | zabbix | history_uint | p202105250000 | 1621980000 | 21 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-26 00:00:01 |
| def | zabbix | history_uint | p202105260000 | 1622066400 | 22 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-27 00:00:01 |
| def | zabbix | history_uint | p202105270000 | 1622152800 | 23 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-28 00:00:01 |
| def | zabbix | history_uint | p202105280000 | 1622239200 | 24 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-29 00:00:01 |
| def | zabbix | history_uint | p202105290000 | 1622325600 | 25 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-30 00:00:01 |
| def | zabbix | history_uint | p202105300000 | 1622412000 | 26 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-05-31 00:00:01 |
| def | zabbix | history_uint | p202105310000 | 1622498400 | 27 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-01 00:00:01 |
| def | zabbix | history_uint | p202106010000 | 1622584800 | 28 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-02 00:00:02 |
| def | zabbix | history_uint | p202106020000 | 1622671200 | 29 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-03 00:00:01 |
| def | zabbix | history_uint | p202106030000 | 1622757600 | 30 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 00:00:01 |
| def | zabbix | history_uint | p202106040000 | 1622844000 | 31 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106050000 | 1622930400 | 32 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106060000 | 1623016800 | 33 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106070000 | 1623103200 | 34 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106080000 | 1623189600 | 35 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106090000 | 1623276000 | 36 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106100000 | 1623362400 | 37 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106110000 | 1623448800 | 38 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106120000 | 1623535200 | 39 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106130000 | 1623621600 | 40 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106140000 | 1623708000 | 41 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106150000 | 1623794400 | 42 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106160000 | 1623880800 | 43 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106170000 | 1623967200 | 44 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106180000 | 1624053600 | 45 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106190000 | 1624140000 | 46 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106200000 | 1624226400 | 47 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106210000 | 1624312800 | 48 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106220000 | 1624399200 | 49 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106230000 | 1624485600 | 50 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106240000 | 1624572000 | 51 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106250000 | 1624658400 | 52 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106260000 | 1624744800 | 53 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106270000 | 1624831200 | 54 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106280000 | 1624917600 | 55 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106290000 | 1625004000 | 56 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202106300000 | 1625090400 | 57 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202107010000 | 1625176800 | 58 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202107020000 | 1625263200 | 59 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
| def | zabbix | history_uint | p202107030000 | 1625349600 | 60 | RANGE | `clock` | 2021-06-04 03:30:02 | 2021-06-04 08:09:21 |
+---------------+--------------+--------------+----------------+-----------------------+----------------------------+------------------+----------------------+---------------------+---------------------+
60 rows in set (0.001 sec)
有什么办法可以删除32-60分区吗？
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