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Re: Compound index (pkey) not used when it should be
Posted by: Peter Brawley
Date: November 29, 2017 04:21PM

https://dev.mysql.com/doc/refman/5.5/en/innodb-buffer-pool.html may be useful.

InnoDB seems to have decided that using the data file will be just as fast. What's the performance without the Limit clause? Did you try Force Index, and if so with what result?

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Re: Compound index (pkey) not used when it should be
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November 29, 2017 04:21PM


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