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Re: No other way than delete primary key to create partitions by single datetime columns?
Posted by: Rick James
Date: August 24, 2015 12:36PM

An INDEX is unlikely to be "more powerful after the table is partitioned". A tiny advantage is that the BTree containing the index might be one level shallower. However, the pruning to pick the partition cost something -- probably as much as the BTree saves!

My blog contains the only 4 use cases I have found where PARTITIONing improves performance:

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