“指定的密钥太长;最大密钥长度为1000字节”

Question

我无法在varchar(500)上创建索引。

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

Answer 1

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