MySQL error on migration: (1071, 'Specified key was too long; max key length is 767 bytes')

Question

MySQL error on migration: (1071, 'Specified key was too long; max key length is 767 bytes')

ilhan opened this issue 8 years ago · comments

When using utfmb4 as you should 😃 a default MySQL installation errors out.

~~This pull request~~ lowers the max_length to 150 from 255.
Another approach could be to write a warning to utfmb4 users somewhere if you dont want to limit those not affected.

ilhan · Answer 1 · Tue Apr 05 2016 19:24:09 GMT+0800 (China Standard Time)

Hm, dont experience the same problem on MySQL 5.7.11 via homebrew on Mac.
Had the problem on MySQL 5.5.44 via apt-get on Debian.

ilhan · Answer 2 · Tue Apr 05 2016 19:51:33 GMT+0800 (China Standard Time)

This is fixed by default in MySQL 5.7.7
Guide for older MySQL

Josep Cugat · Answer 3 · Wed Apr 06 2016 16:08:05 GMT+0800 (China Standard Time)

This was also discussed in #29

Thanks for the extra info about old MySQL versions!