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Re: partition with non primary key column
Posted by: Mattias Jonsson
Date: December 12, 2011 06:34AM

To ensure the uniqueness of a unique key (like the Primary key) all columns in the partitioning expression must be a part of all unique keys. This since the indexes is partitioned along with the data and the uniqueness is enforced per partition.

See:
http://dev.mysql.com/doc/refman/5.6/en/partitioning-limitations-partitioning-keys-unique-keys.html

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