previous discussion: https://news.ycombinator.com/item?id=17310690 https://news.ycombinator.com/item?id=17310690 additional context (which the OP didn't refere

previous discussion: https://news.ycombinator.com/item?id=17310690 https://news.ycombinator.com/item?id=17310690 additional context (which the OP didn't reference): https://mysqlserverteam.com/mysql-8-0-when-to-use-utf8mb3-over-utf8mb4/ https://mysqlserverteam.com/mysql-8-0-when-to-use-utf8mb3-ov... https://mysqlserverteam.com/sushi-beer-an-introduction-of-utf8-support-in-mysql-8-0/ https://mysqlserverteam.com/sushi-beer-an-introduction-of-ut... https://dev.mysql.com/doc/refman/5.5/en/charset-unicode-utf8mb3.html https://dev.mysql.com/doc/refman/5.5/en/charset-unicode-utf8... hint: "Exactly the same set of characters is available in utf8mb3 and ucs2."