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Basic MySQL Optimizer Tracing
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Query performance is critical to for any serious application.
EXPLAIN can tell you how the results were retrieved.
But as a Data Guardian, you will need to be able to dig into the details of why MySQL chooses a particular path to resolve queries.
Luckily, you can trace the MySQL optimizer to find out why.
EXPLAIN can tell you how the results were retrieved.
But as a Data Guardian, you will need to be able to dig into the details of why MySQL chooses a particular path to resolve queries.
Luckily, you can trace the MySQL optimizer to find out why.
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