...
MariaDB [controlloop]> select * from ExampleObjMapEc;
+---------------+---------+
| name | version |
+---------------+---------+
| ExampleObjMap | 1.0.0 |
+---------------+---------+
MariaDB [controlloop]> select * from JpaExampleObjMapEc_EXAMPLES;
+---------------+---------+---------------------------+--------------+
| name | version | EXAMPLES | EXAMPLES_KEY |
+---------------+---------+---------------------------+--------------+
| ExampleObjMap | 1.0.0 | .... <binary code> .... | MyKey1 |
| ExampleObjMap | 1.0.0 | .... <binary code> .... | MyKey2 |
+---------------+---------+---------------------------+--------------+
The image below shows the binary code.
Hibernate
MariaDB [controlloop]> describe ExampleObjMapEc;
+---------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------+--------------+------+-----+---------+-------+
| name | varchar(120) | NO | PRI | NULL | |
| version | varchar(20) | NO | PRI | NULL | |
+---------+--------------+------+-----+---------+-------+
MariaDB [controlloop]> SHOW CREATE TABLE JpaExampleObjMapEc_EXAMPLES;
+-----------------------------+-------------------------------------------------------------------------------------------------------+
| Table | Create Table |
+-----------------------------+-------------------------------------------------------------------------------------------------------+
| JpaExampleObjMapEc_EXAMPLES | CREATE TABLE `JpaExampleObjMapEc_EXAMPLES` (
`name` varchar(120) NOT NULL,
`version` varchar(20) NOT NULL,
`examples_name` varchar(120) NOT NULL,
`examples_version` varchar(20) NOT NULL,
`examples_KEY` varchar(255) NOT NULL,
PRIMARY KEY (`name`,`version`,`examples_KEY`),
UNIQUE KEY `UK_o5b5lwcueiue1x7wf2j9l0ohb` (`examples_name`,`examples_version`),
CONSTRAINT `FKeu2s8p9mhstus32uliuwib8rr` FOREIGN KEY (`name`, `version`)
REFERENCES `ExampleObjMapEc` (`name`, `version`),
CONSTRAINT `FKf66pkeal9tdygic4pvspxhph5` FOREIGN KEY (`examples_name`, `examples_version`)
REFERENCES `Example` (`name`, `version`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 |
+-----------------------------+-------------------------------------------------------------------------------------------------------+
...