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Re: partitioning by primary key
Posted by: Rick James
Date: August 08, 2009 04:39PM

Is the data inserted effectively in "created" order? If so, "id" values that are close to each other will correspond to "created" values that are close. Therefore, the clustering on the PK that is inherent in InnoDB leads to clustering on created (or nearly so). Hence, PARTITIONing won't improve the clustering.

What's your value of innodb_buffer_pool_size? It should be perhaps 70% of available RAM.

What do your queries look like? Probably you could construct a "summary" table that has daily totals. Then the 'report' queries could use such a table, and be significantly faster.

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