有问题的LAST_INSERT_ID

时间：2017-06-09 14:42:13

标签： mysql sequence mariadb 

redefinition of group name 'id' as group 6; was group 3

我有这个功能我的MariaDB并且它可以工作，但问题是在插入时，它插入的新ID是CREATE FUNCTION `getSequenceNumber` ( company_id INTEGER, sequence_name varchar(255)) RETURNS INT(10) BEGIN INSERT INTO sequences (`company_id`, `name`, `value`) VALUES (company_id, sequence_name, LAST_INSERT_ID(1)) ON DUPLICATE KEY UPDATE `value` = LAST_INSERT_ID(value + 1); RETURN LAST_INSERT_ID(); END CREATE TABLE `sequences` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `name` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL, `company_id` int(10) unsigned NOT NULL, `value` int(10) unsigned NOT NULL, PRIMARY KEY (`id`), UNIQUE KEY `sequences_name_company_id_unique` (`name`,`company_id`), KEY `sequences_company_id_index` (`company_id`), KEY `sequences_value_index` (`value`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci; //sample output MariaDB [testdb]> select version(); +----------------+ | version() | +----------------+ | 10.2.6-MariaDB | +----------------+ 1 row in set (0.00 sec) MariaDB [testdb]> select `getSequenceNumber`(1,'sequence_021'); +---------------------------------------+ | `getSequenceNumber`(1,'sequence_021') | +---------------------------------------+ | 2 | +---------------------------------------+ 1 row in set (0.03 sec) MariaDB [testdb]> select `getSequenceNumber`(1,'sequence_0212'); +----------------------------------------+ | `getSequenceNumber`(1,'sequence_0212') | +----------------------------------------+ | 5 | +----------------------------------------+ 1 row in set (0.03 sec) MariaDB [testdb]> select `getSequenceNumber`(1,'new_sequence123'); +------------------------------------------+ | `getSequenceNumber`(1,'new_sequence123') | +------------------------------------------+ | 6 | +------------------------------------------+ 1 row in set (0.03 sec) + <last_id>有没有办法清除/刷新{{1}插入记录之前？

编辑：添加了create sql语句和示例输出

1 个答案:

答案 0 :(得分：0)

我无法重现这个问题：

MariaDB [_]> SELECT VERSION();
+----------------+
| VERSION()      |
+----------------+
| 10.2.6-MariaDB |
+----------------+
1 row in set (0.00 sec)

MariaDB [_]> DROP TABLE IF EXISTS `sequences`;
Query OK, 0 rows affected, 1 warning (0.00 sec)

MariaMariaDB [_]> CREATE TABLE IF NOT EXISTS `sequences` (
    ->   `name` VARCHAR(255) PRIMARY KEY,
    ->   `value` BIGINT UNSIGNED NOT NULL
    -> );
Query OK, 0 rows affected (0.01 sec)

MariaDB [_]> DROP FUNCTION IF EXISTS `getSequenceNumber`;
Query OK, 0 rows affected, 1 warning (0.00 sec)

MariaDB [_]> DELIMITER //

MariaDB [_]> CREATE OR REPLACE FUNCTION `getSequenceNumber` (
    ->   `sequence_name` VARCHAR(255)
    -> )
    -> RETURNS BIGINT UNSIGNED
    -> BEGIN
    ->   INSERT INTO `sequences` (`name`, `value`)
    ->   VALUES (`sequence_name`, LAST_INSERT_ID(1))
    ->     ON DUPLICATE KEY UPDATE `value` = LAST_INSERT_ID(`value` + 1); 
    ->   RETURN LAST_INSERT_ID();
    -> END//
Query OK, 0 rows affected (0.00 sec)

MariaDB [_]> DELIMITER ;

MariaDB [_]> SELECT `getSequenceNumber`('sequence_0'); -- 1
+-----------------------------------+
| `getSequenceNumber`('sequence_0') |
+-----------------------------------+
|                                 1 |
+-----------------------------------+
1 row in set (0.00 sec)

MariaDB [_]> SELECT `getSequenceNumber`('sequence_0'); -- 2
+-----------------------------------+
| `getSequenceNumber`('sequence_0') |
+-----------------------------------+
|                                 2 |
+-----------------------------------+
1 row in set (0.00 sec)

MariaDB [_]> SELECT `getSequenceNumber`('sequence_1'); -- 1
+-----------------------------------+
| `getSequenceNumber`('sequence_1') |
+-----------------------------------+
|                                 1 |
+-----------------------------------+
1 row in set (0.01 sec)

MariaDB [_]> SELECT `getSequenceNumber`('sequence_2'); -- 1
+-----------------------------------+
| `getSequenceNumber`('sequence_2') |
+-----------------------------------+
|                                 1 |
+-----------------------------------+
1 row in set (0.00 sec)

MariaDB [_]> SELECT `getSequenceNumber`('sequence_0'); -- 3
+-----------------------------------+
| `getSequenceNumber`('sequence_0') |
+-----------------------------------+
|                                 3 |
+-----------------------------------+
1 row in set (0.00 sec)

MariaDB [_]> SELECT `getSequenceNumber`('sequence_2'); -- 2
+-----------------------------------+
| `getSequenceNumber`('sequence_2') |
+-----------------------------------+
|                                 2 |
+-----------------------------------+
1 row in set (0.00 sec)

MariaDB [_]> SELECT `getSequenceNumber`('sequence_1'); -- 2
+-----------------------------------+
| `getSequenceNumber`('sequence_1') |
+-----------------------------------+
|                                 2 |
+-----------------------------------+
1 row in set (0.00 sec)

<强>更新 

MariaDB [_]> SELECT VERSION();
+----------------+
| VERSION()      |
+----------------+
| 10.2.6-MariaDB |
+----------------+
1 row in set (0.00 sec)

MariaDB [_]> DROP FUNCTION IF EXISTS `getSequenceNumber`;
Query OK, 0 rows affected (0.00 sec)

MariaDB [_]> DROP TABLE IF EXISTS `sequences`;
Query OK, 0 rows affected (0.00 sec)

MariaDB [_]> CREATE TABLE IF NOT EXISTS `sequences` (
    ->   `name` VARCHAR(255) COLLATE utf8mb4_unicode_ci NOT NULL,
    ->   `company_id` BIGINT UNSIGNED unsigned NOT NULL,
    ->   `value` BIGINT UNSIGNED NOT NULL,
    ->   PRIMARY KEY `sequences_name_company_id_unique` (`name`, `company_id`),
    ->   KEY `sequences_company_id_index` (`company_id`),
    ->   KEY `sequences_value_index` (`value`)
    -> ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
Query OK, 0 rows affected (0.00 sec)

MariaDB [_]> DELIMITER //

MariaDB [_]> CREATE OR REPLACE FUNCTION `getSequenceNumber` (
    ->   `_company_id` BIGINT UNSIGNED,
    ->   `sequence_name` VARCHAR(255)
    -> ) RETURNS BIGINT UNSIGNED
    -> BEGIN
    ->   INSERT INTO `sequences` (`name`, `company_id`, `value`)
    ->   VALUES (`sequence_name`, `_company_id`, LAST_INSERT_ID(1))
    ->     ON DUPLICATE KEY UPDATE `value` = LAST_INSERT_ID(`value` + 1);
    ->   RETURN LAST_INSERT_ID();
    -> END//
Query OK, 0 rows affected (0.00 sec)

MariaDB [_]> DELIMITER ;

MariaDB [_]> SELECT `getSequenceNumber`(1, 'sequence_021'); -- 1
+----------------------------------------+
| `getSequenceNumber`(1, 'sequence_021') |
+----------------------------------------+
|                                      1 |
+----------------------------------------+
1 row in set (0.00 sec)

MariaDB [_]> SELECT `getSequenceNumber`(2, 'sequence_021'); -- 1
+----------------------------------------+
| `getSequenceNumber`(2, 'sequence_021') |
+----------------------------------------+
|                                      1 |
+----------------------------------------+
1 row in set (0.01 sec)

MariaDB [_]> SELECT `getSequenceNumber`(1, 'sequence_021'); -- 2
+----------------------------------------+
| `getSequenceNumber`(1, 'sequence_021') |
+----------------------------------------+
|                                      2 |
+----------------------------------------+
1 row in set (0.02 sec)

MariaDB [_]> SELECT `getSequenceNumber`(2, 'sequence_021'); -- 2
+----------------------------------------+
| `getSequenceNumber`(2, 'sequence_021') |
+----------------------------------------+
|                                      2 |
+----------------------------------------+
1 row in set (0.00 sec)

MariaDB [_]> SELECT `getSequenceNumber`(1, 'sequence_0212'); -- 1
+-----------------------------------------+
| `getSequenceNumber`(1, 'sequence_0212') |
+-----------------------------------------+
|                                       1 |
+-----------------------------------------+
1 row in set (0.00 sec)

MariaDB [_]> SELECT `getSequenceNumber`(1, 'sequence_021'); -- 3
+----------------------------------------+
| `getSequenceNumber`(1, 'sequence_021') |
+----------------------------------------+
|                                      3 |
+----------------------------------------+
1 row in set (0.00 sec)

MariaDB [_]> SELECT `getSequenceNumber`(1, 'new_sequence123'); -- 1
+-------------------------------------------+
| `getSequenceNumber`(1, 'new_sequence123') |
+-------------------------------------------+
|                                         1 |
+-------------------------------------------+
1 row in set (0.00 sec)

MariaDB [_]> SELECT `getSequenceNumber`(1, 'new_sequence123'); -- 2
+-------------------------------------------+
| `getSequenceNumber`(1, 'new_sequence123') |
+-------------------------------------------+
|                                         2 |
+-------------------------------------------+
1 row in set (0.01 sec)
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