You are viewing questions related to Query Optimizations.
Different query optimizations and how you can use and tune them to get better performance.
Does the query optimize a low-cardinality index prefix range search?Conventionally, using a range condition on a field which forms a prefix of ...
Fitting index not usedMariaDB version: mysql Ver 15.1 Distrib 10.1.2-MariaDB, for debian-linux-g...
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