InnoDB

InnoDB
• InnoDB search indexes (with a type of FULLTEXT), introduced in MySQL 5.6.4, are not compatible
with earlier versions of MySQL, including earlier releases in the 5.6 series. Drop such indexes before
performing a downgrade.
• InnoDB small page sizes specified by the innodb_page_size [1776] configuration option,
introduced in MySQL 5.6.4, are not compatible with earlier versions of MySQL, including earlier
releases in the 5.6 series. Dump all InnoDB tables in instances that use a smaller InnoDB page
size, drop the tables, and re-create and reload them after the downgrade.
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