Poor MySQL Query Performance on Large Partitioned Tables with A Lot of Partitions (>50) For MySQL 5.1 and 5.5 (Doc ID 1319185.1)

Last updated on APRIL 06, 2017

Applies to:

MySQL Server - Version 5.1 to 5.5 [Release 5.1 to 5.5]
Information in this document applies to any platform.
This should be much better from MySQL 5.6 onward.

Symptoms

Cause

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