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Migrating to MySQL 8.0 for WordPress – episode 3: query optimization

Now that MySQL 8.0.3 RC1 is installed and that we saw how to verify the workload, it’s time to see if we can optimize some of the queries. As explained before, rewriting queries when using a product like WordPress is complicated but maybe we can do something for the indexes ? So, do you remember how to check the query … Read More


Migrating to MySQL 8.0 for WordPress – episode 2: workload analysis

Now that MySQL is upgraded to 8.0 RC1, let’s have a look on how we could check the workload and see if we can optimize something by adding indexes for example. The same technique can be used to find inefficient queries requiring rewriting. The first thing we will check is some information regarding the usage of the user used for … Read More


Migrating to MySQL 8.0 for WordPress – episode 1

Yesterday I decided to upgrade the database server of lefred.be running the latest WordPress to MySQL 8.0. The previous version was 5.7.19. My dedicated server is still running on CentOS 6.x, and I had just to enable the MySQL Community 8.0 yum repository and upgrade the rpms: # yum update mysql-community-server –enablerepo=mysql80-community After the upgrade, I had to modify my.cnf … Read More


👋 🐛 199 – bye bye bug #199, MySQL auto_increment is fixed !

It was expected for a long time…. here is the fix for bug #199 !! The bug #199 submitted by PeterZ has been fixed in 8.0. Thank you to Zhang Simon for his contribution that inspired us to implement the fix. Let’s have a look at the test case described in the bug report, I will reproduce it on MySQL … Read More


The MySQL Team is happy and proud to welcome you at Oracle Open World 2017

OOW17 is just around the corner. And again this year the MySQL team is very proud to present you their work mostly on MySQL 8.0 but also on NDB and all Enterprise tools we have. This year, we will also focus on the place MySQL has in Oracle’s Cloud ! Of course MySQL’s Community is also present in the schedule … Read More


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