With MySQL 8.0, one key feature is the new Data Dictionary. The system tables that were previously in MyISAM are now replaced by new protected ones in the DD. My friend Giuseppe already explained how you could see those tables…
As you may already know, there are many different places where a MySQL configuration variables can be initialized. In MySQL 8.0, we added in performance_schema a table allowing you to easily find where a variable was defined. Let’s check this…
As you probably already know, MySQL 8.0 supports Unicode 9.0 and our default charset moved from latin1 to utf8mb4. Recently, Gabi (certainly working on an amazing presentation for PHPWorld) asked me something about how the client deals with the emojis…
Sometimes when you are using a MySQL InnoDB Cluster, you might encounter some performance issue because one node becomes dramatically slow. Why ? First of all, why ? A node can apply the transactions slower than the other nodes…
In MySQL 8.0, we have now a new way of storing tables definitions: the Data Dictionary ! Thanks to the Data Dictionary, DDLs in MySQL 8.0 are now Atomic. This means tat we have some changes in the behavior of…
As MySQL Community Manager, I am an employee of Oracle and the views expressed on this blog are my own and do not necessarily reflect the views of Oracle.
You can find articles I wrote on Oracle’s blog.