MySQL Security – Password Validation Plugin.
Workbench mysql optimizer update#
Discovering MySQL Database Service – Episode 6 – Update the Private Subnet Security List.Discovering MySQL Database Service – Episode 7 – Use a Bastion SSH port forwarding session.Discovering MySQL Database Service – Episode 8 – Connect to MySQL Database Service Using MySQL Shell.Discovering MySQL Database Service – Episode 9 – Connect to MySQL Database Service Using MySQL Workbench.Discovering MySQL Database Service – Episode 10 – Connect to MySQL Database Service Using OCI Cloud Shell.Explore & visualize your MySQL HeatWave data with Superset.I’m using the optimized MySQL Server Docker images, created, maintained and supported by the MySQL team at Oracle.ĭeployment of MySQL 8.0.15 & MySQL 8.0.16:Įnter your email address to receive notifications of new posts by email. One example is worth a thousand words, so let’s have a deeper look comparing the old behavior in MySQL 8.0.15 to the new one beginning with MySQL 8.0.16. In other cases, the type of the constant is adjusted to match that of the field if they are not the same, avoiding type conversion at execution time. The goal is to speed up execution at the cost of a little more analysis at optimize time.Īlways true and false comparisons are detected and eliminated.
What is “Constant-Folding Optimization” ?Ĭomparisons between constants and column values in which the constant value is out of range or of the wrong type with respect to the column type are now handled once during query optimization rather row-by-row than during execution. Nevertheless the principle is simple and more important there is nothing to do from the user perspective. The name of this article ( Constant-Folding Optimization), named after this kind of optimization, is quite cryptic. 16 the optimizer has improved again!Ĭomparisons of columns of numeric types with constant values are checked and folded or removed for invalid or out-of-rage values.
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