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Re: Partition Pruning
Posted by: Mattias Jonsson
Date: September 28, 2010 10:59AM

Hi Rick, thank you for all your answers here!

When the partitioning function returns NULL (as of TO_DAYS('2010-02-31')) it will put the row in the first partition (since partitioning compares NULL to be less than any number).

Also see my reply in the other thread.

Regarding LOCAL, I guess that it opposite to GLOBAL INDEX, which MySQL does not yet have. (Global indexes would allow to break the have an unique index over columns not included in the partitioning function. It would also allow to partition the indexes separately from the data).

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