“Specified key was too long; max key length is 1000 bytes”

问题

I can't create index on varchar(500).

MySQL: Specified key was too long; max key length is 1000 bytes

回答1:

latin1 = 1 byte = 1 character
uft8 = 3 byte = 1 character
gbk = 2 byte = 1 character

来源：https://stackoverflow.com/questions/1037598/specified-key-was-too-long-max-key-length-is-1000-bytes