gprevost/mysql-utf8mb4 repository overview

Inherits the standard mysql image and adds support for real UTF-8 standard.

This is because MySQL "utf8" encodes characters on 3 bits instead of 4 bits in UTF-8 standard, which is what "utf8mb4" does. To quote Adam Hooper article: "In short: MySQL's utf8mb4 means UTF-8. MySQL's utf8 means a proprietary character encoding. This encoding can’t encode many Unicode characters.

See https://github.com/guillaumeprevost/docker-mysql-utf8mb4⁠ for the source. See https://hub.docker.com/_/mysql/⁠ for more details on the standard mysql image.