MySQL error: The maximum column size is 767 bytes

Question

When I run a program which does something with MySQL, I got this error message:

2015-06-10 15:41:12,250 ERROR app.wsutils 419 INCRON: Error: (\'HY000\

Answer 1

I was using MariaDB version 10.1.38 and used all of the below given commands but it did not work -

set global innodb_large_prefix = ON;
Query OK, 0 rows affected (0.00 sec)

set global innodb_file_per_table = ON;
Query OK, 0 rows affected (0.00 sec)

set global innodb_file_format = Barracuda;
Query OK, 0 rows affected (0.00 sec)

SET GLOBAL innodb_default_row_format = 'DYNAMIC';

Because after you restart your MySQL (or MariaDB), these settings will not reflect back using the command at the mysql prompt: show variables like 'innodb%';

Then I edited My.ini and added these settings in the file at below location- C:\xampp\mysql\bin\my.ini

## Innodb settings to bypass error of max size 737
innodb-file-format=barracuda
innodb-file-per-table=ON
innodb-large-prefix=ON
## Above 3 didnot work so i added below
innodb_default_row_format = 'DYNAMIC'

source:https://www.experts-exchange.com/questions/28675824/Why-am-I-unable-to-turn-innodb-large-prefix-ON-successfully-Every-time-I-reboot-mySql-on-my-Ubuntu-VPS-it-resets-to-OFF.html