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Re: mysql online ddl still lock
Posted by: hua kai
Date: September 01, 2016 11:40PM

ALTER TABLE `aa_usersns` FORCE, ALGORITHM=INPLACE, LOCK=NONE
I use this command to test

Report error:
ALTER TABLE `aa_usersns` FORCE, ALGORITHM=INPLACE, LOCK=NONE error codeļ¼š 1846
ALGORITHM=INPLACE is not supported. Reason: Cannot change column type INPLACE. Try ALGORITHM=COPY.

As I mentioned before, I guess it's because of table's size and index size. this table has 2716809 records.

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