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Foreign Key bugs in MySQL and MariaDB

Foreign keys are a controversial topic. MySQL and MariaDB implementation has several bugs and limitations, that are discussed here.

MySQL Shell 8.0.18 – What’s New?

The MySQL Development team is proud to announce a new version of the MySQL Shell with the following major improvements:

  • Migration to Python 3
  • Built-in thread reports
  • Ability to use an external editor
  • Ability to execute system commands within the shell
  • Admin API Improvements:
    • New options to log all the SQL used on the different operations
    • Support for IPv6 in InnoDB Clusters
    • New function to reset the InnoDB Cluster recovery accounts
  • General maintenance and bug fixing

Python 3 Migration Due to the coming end-of-life (EOL) for Python 2.7 by end of this year, the Shell has been updated to use Python 3.… Facebook Twitter LinkedIn

Support for TLS 1.3 in Group Replication

In MySQL 8.0.18, we enhanced the Group Communication System (GCS) layer used by Group Replication (GR) with the ability to use and configure member-to-member connections using TLS v1.3. Therefore, you can secure further your system’s communication with the latest security algorithms.…

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MySQL is OpenSSL-only now !

MySQL needs an SSL/TLS library. It uses it primarily to encrypt network connections, but also uses its various algorithms and random number generators.

OpenSSL is the golden standard when it comes to cross-platform open source SSL/TLS library that you use from C/C++.…

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How to Start a 3-Node Percona XtraDB Cluster with the Binary Tarball Package

This blog post will help you configure a 3-node Percona XtraDB Cluster using a binary tarball on your local machine. Configuration files are auto-generated with mostly default configurations except for port/IP address details. The tool has the handy script to create configuration files and start multiple Percona XtraDB Cluster nodes on the fly, helping you to start PXC quickly without spending time on startup configuration as well as avoid using any virtual environments.  The script is available in the percona-qa github project. Currently, this script supports PXC binary tarball distributions only.

You can download the appropriate tarball package from the Percona-XtraDB-Cluster-8.0 downloads page. Once you have the packages available on your local machine, unpack the …

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MySQL InnoDB Cluster – What’s new in Shell AdminAPI 8.0.18 release

The MySQL Development Team is very happy to announce a new 8.0 Maintenance Release of InnoDB Cluster – 8.0.18.

In addition to major quality improvements, 8.0.18 brings some very useful features!

This blog post will only cover InnoDB cluster’s frontend and control panel – MySQL Shell and its AdminAPI – Stay tuned for other blog posts covering MySQL Router and Group Replication!…

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Replication with restricted privileges

Up until MySQL 8.0.18, the slave executes replicated transactions without checking privileges. It does so to be able to apply everything that its upstream server (the master) tells it to. In practice this means that the slave fully trusts its master.…

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MySQL 8.0.18 Replication Enhancements

The latest MySQL 8.0 release is out. That is MySQL 8.0.18.  We have some new replication enhancements and some work done on replication internals in this release that we would like to highlight and celebrate with our users. Here is a quick summary.…

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FOSDEM MySQL, MariaDB & Frieds Devroom 2020 Committee

The Mysql, MariaDB and Friends Devroom is pleased to announce the committee that will decide on the talks to be presented. Every year we are overwhelmed with submissions and it’s the committee that have the thankless task of deciding on the final selections – last year we had 67 submissions to reduce down to 17 final selections,

This year’s committee members are:

Marco Tusa (Percona)
Kenny Gryp (MySQL)
Vicențiu Ciorbaru (MariaDB Foundation)
Matthias Crauwels (Pythian)
Giuseppe Maxia (Community)
Federico Razzoli (Community)

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MySQL Connector/NET 8.0.18 has been released

Dear MySQL users,

MySQL Connector/NET 8.0.18 is the first version to support
.Net Core 3.0 and the sixth general availability release
of MySQL Connector/NET to add support for the X DevAPI, which
enables application developers to write code that combines the
strengths of the relational and document models using a modern,
NoSQL-like syntax that does not assume previous experience writing traditional SQL.

To learn more about how to write applications using the X DevAPI, see For more
information about how the X DevAPI is implemented in Connector/NET, see
NuGet packages provide functionality at a …

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