Scalar subquery unnesting is a transformation technique used by the MySQL optimizer to optimize queries that involve scalar subqueries. Scalar subqueries are subqueries that return a single value, typically used in expressions or as part […]
In MySQL 8, invisible indexes are a feature that allows you to create an index without it being used by the optimizer. This can be useful in situations where you want to test the impact […]
The checklist for operating MySQL Group Replication MySQL Group Replication is a plugin for MySQL that allows you to create a group of MySQL servers that work together to provide a replicated and highly available […]
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