Last updated on JANUARY 05, 2017
Applies to:MySQL Server - Version 5.6 and later
Information in this document applies to any platform.
Since MySQL 5.1, InnoDB is able to perform table maintenance operations using inplace algorithm (also known as "online alter"), which may be performed much faster and without blocked access.
ALTER TABLE command with "inplace" algorithm shows error message like:
ERROR 1062 (23000): Duplicate entry '2018853841' for key 'PRIMARY'
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