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Re: how to force index usage with a small local dev database
Posted by: Øystein Grøvlen
Date: February 19, 2018 03:47AM

Hi,

MySQL has a cost-based optimizer. Based on statistics about the current data, it will decide whether it is useful to use an index or not. Hence, which index will be used will depend on the content of the database.

Øystein Grøvlen,
Senior Principal Software Engineer,
MySQL Group, Oracle,
Trondheim, Norway

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