During a MySQL upgrade process the RDS replication between MySQL 8.0 and 8.4 was configured. I wanted to ensure the data was consistent for any random reason. This post is…
The post How to checksum on AWS RDS for MySQL Replication 8.0 > 8.4 first appeared on Change Is Inevitable.
Keep your MySQL database protected with beginner-friendly advice on user management and security! Learn how to create users, grant and revoke privileges, and safeguard your data using library-themed examples and practical tips. Essential reading for every data explorer eager to lock up their digital collection.
Announcing Vitess 23.0.0 # We’re excited to release Vitess 23.0.0 — the latest major version of Vitess — bringing new defaults, better operational tooling, and refined metrics. This release builds on the strong foundation of version 22 and is designed to make deployment and observability smoother, while continuing to scale MySQL workloads horizontally with confidence. ✅ Why This Release Matters # For production users of Vitess, this release is meaningful in several ways:
Subtitle: Schema design, embedding workflows, hybrid search, and performance tradeoffs explained.
Quick Recap from Part 1
In Part 1, we introduced the MyVector plugin — a native extension that brings vector embeddings and HNSW-based approximate nearest neighbor (ANN) search into MySQL. We covered how MyVector supports scoped queries (e.g., WHERE user_id = X) to ensure that semantic search remains relevant, performant, and secure in real-world multi-tenant applications.
Now in Part 2, we move from concept to implementation:
Upgrading MySQL is often seen as straightforward — install the new binaries, restart, done. In reality, it’s more like upgrading a production jet engine mid-flight. Small changes in defaults, deprecated settings, or old privileges can lead to surprises you don’t want at 2:00 AM on maintenance night. Or even worse, see your performance deteriorating during the peak of business activity.
Fortunately, MySQL Shell ships with a utility to help validate whether your server is actually ready before you pull the trigger: util.checkForServerUpgrade().
In this post, we’ll walk you through the installation of MySQL Shell and running the upgrade checker.
Installing MySQL Shell
If you don’t already have MySQL Shell available on your server, install it first. Packages are available at:
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[Read more]Discover how to use transactions in MySQL to keep your data safe and organized—just like a diligent librarian! This beginner-friendly post explains what transactions are, why they matter, and how to use them with easy library metaphors, clear SQL examples, and essential tips for database reliability.
Data masking lets you hide sensitive fields (emails, credit-card numbers, job titles, etc.) while keeping data realistic for reporting, support, or testing. It is particularly useful when you collaborate with external entities and need to share your data for development reasons. You also need to protect your data and keep your customers’ privacy safe. Last […]
On October 10th, 2025, we released MySQL 9.5, the latest Innovation Release. As usual, we released bug fixes for 8.0 and 8.4 LTS, but this post focuses on the newest release. In this release, we can see contributions related to Connector J and Connector Net, as well as to different server categories. Connector / J […]
MySQL 9.5 has been released, here is a list of the contributions we included in it. Thank you to all contributors!
On October 10th, 2025, we released MySQL 9.5, the latest Innovation Release. As usual, we released bug fixes for 8.0 and 8.4 LTS, but this post focuses on the newest release. In this release, we can see contributions related to Connector J and Connector Net, as well as to different server categories. Connector / J […]