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Posted by Robbie Lindsey on December 12 2006 2:56pm[Delete] [Edit]

FYI: The above ALTER statement gets a syntax error in version 4.1.0-Alpha, but it works in 4.1.16-Production.

Posted by Rick James on August 16 2015 7:19am[Delete] [Edit]

Defragmentation is almost never needed for InnoDB tables. Spend your time looking for other ways to speed up your queries.