17 Apr
2017
17 Apr
'17
9:14 p.m.
Hi, butler! On Apr 17, butler wrote:
we know the mysql have a limit that the max index length on a single column is 767.I want know how the 767 come from ? why not 799 or 800 etc.
768 is 256*3, originally selected to fit 256 characters in utf8 charset, each character can be up to 3 bytes long. 767 is 768-1. Regards, Sergei Chief Architect MariaDB and security@mariadb.org