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Re: Partition Pruning Issue while using Day() function in Range
Posted by: Rick James
Date: September 23, 2011 09:22AM

> where (time >= '2011-09-12' and time < '2011-09-13') and sender = '918648887399';”
If that is your main WHERE clause, you would be better off getting rid of PARTITIONing and simply having
INDEX(sender, time)

If there are other reasons for PARTITIONing, please state them. DAY() would not have let you do DROP PARTITION past 28 days. TO_DAYS() does give you a way to DROP after any chosen time -- This is a strong use for PARTITION.

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Re: Partition Pruning Issue while using Day() function in Range
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September 23, 2011 09:22AM


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