There are tons of unicode characters that are outside of BMP that MySQL's original 3-byte implementation didn't support. [1] It just happened that emojis have b

There are tons of unicode characters that are outside of BMP that MySQL's original 3-byte implementation didn't support. [1] It just happened that emojis have been becoming wider spread than those non-BMP unicode characters. [1]: https://stackoverflow.com/questions/5567249/what-are-the-most-common-non-bmp-unicode-characters-in-actual-use https://stackoverflow.com/questions/5567249/what-are-the-mos...