composite primary key as foreign key deleting one set delets all - mysql

Question

I have two tables one of them has composite primary key and the other has foreign keys to it. They both are set to cascade on delete. The problem is when I delete lets say a composite key set "name: John date: 02.02.2018" from the main table all the John rows are deleted from the table with the foreign keys, but there can be a set "name: John date: 04.04.2018" and also all rows where date is 02.02.2018 are also deleted how can I make it delete rows where only the set of foreign key is matched?
Update:
CREATE TABLE messages (
session_date date NOT NULL,
chat int(11) NOT NULL,
message longtext NOT NULL,
date time NOT NULL,
receiver int(11) NOT NULL,
PRIMARY KEY (date,receiver),
KEY FK_messages_sessions (session_date,chat),
KEY FK_messages_sessions_2 (chat,session_date),
CONSTRAINT FK_messages_sessions
FOREIGN KEY (session_date)
REFERENCES sessions (session_date)
ON DELETE CASCADE ON UPDATE CASCADE,
CONSTRAINT FK_messages_sessions_2
FOREIGN KEY (chat)
REFERENCES sessions (chat)
ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=latin1

Answer 1

You have defined two foreign keys instead of a composite foreign key.
Try:
CREATE TABLE `messages` (
`session_date` date NOT NULL,
`chat` int(11) NOT NULL,
`message` longtext NOT NULL,
`date` time NOT NULL,
`receiver` int(11) NOT NULL,
PRIMARY KEY (`date`,`receiver`),
KEY `FK_messages_sessions` (`session_date`,`chat`),
CONSTRAINT `FK_messages_sessions`
FOREIGN KEY (`session_date`, `chat`)
REFERENCES `sessions` (`session_date`, `chat`)
ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=latin1
(session_date,chat) could also be (chat,session_date) depending on the order of these columns in the primary key defined in the referenced table.