Reduce primary key max length to 191 chars #960
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MariaDB and MySQL have a limit of 767 bytes for a primary key. Considering UTF-8 encoding (up to 4 bytes per char), the maximum string length is 191 chars
greg0ire
approved these changes
Apr 9, 2020
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Summary
MariaDB and MySQL have a limit of 767 bytes for a primary key. Considering UTF-8 encoding (up to 4 bytes per char), the maximum string length is 191 chars.
See https://dev.mysql.com/doc/refman/5.7/en/innodb-limits.html