Planet MySQL HA Blog
The Planet MySQL HA Blog aggregates content from sources that cover topics related to high availability (HA) for MySQL databases.
Checking if MySQL Tables Are Loaded in HeatWave In-Memory: A Quick Guide
If you’re working with MySQL HeatWave, Oracle’s powerful in-memory query accelerator for analytics workloads, you might find yourself needing to verify whether your tables are properly loaded into that speedy in-memory columnar storage engine known as RAPID. HeatWave is all about boosting performance by offloading analytical queries from the standard MySQL row-based storage to an optimized in-memory […]
A reponsible role for AI in Open Source projects?
AI-driven pressure on open source maintainers, reviewers and, even, contributors, has been very much in the news lately. Nobody needs another set of edited highlights on the theme from me. For a Postgres-specific view, and insight on how low quality AI outputs affect contributors, Tomas Vondra published a great post on his blog recently, which referenced an interesting talk by Robert Haas at PGConf.dev in Montreal last year. I won’t rehash the content here, they’re both quite quick reads and well worth the time.
More than Flushing (also Caching) for innodb_flush_method, and Missing Release Candidate
Something changed in MySQL 8.4 related to caching, and it is easy to miss, so it deserves a post. And a subject adjacent to this is the missing Release Candidate for MySQL 8.4 LTS, with my hope that the next LTS will have a Release Candidate, so I also cover this topic below.
(if you are not interested in Caching and Flushing, you can jump directly to the section about Release Candidate)
Meet Percona at KubeCon + CloudNativeCon Europe 2026
The Percona team is heading to KubeCon + CloudNativeCon Europe in Amsterdam, and we’d love to meet you in person!
PostgreSQL coffee break: version upgrade related reindexing - reasons
During FOSDEM I had a chance to join a presentation by Alexander Sosna of GitLab on the backup procedure he has followed with his team to decrease the downtime during major upgrades. I highly recommend the talk, definitely worth watching!
Understanding MySQL SQL Modes: A Quick Guide
If you’ve ever dived into MySQL configuration, you’ve probably come across the term “SQL modes.” These are powerful settings that can change how MySQL interprets SQL queries, handles data validation, and even enforces certain standards. But with great power comes great responsibility – choosing the wrong mode can lead to unexpected behaviors, data inconsistencies, or […]
Join the MySQL Community Roadmap Webinar
As we shared in the MySQL Belgium Days in January, and summarized in the latest blog post , we are excited to invite you to an upcoming MySQL community webinar. This is an opportunity to connect directly with the MySQL team. Mark your calendars for Wednesday, February 25, 2026, at 10:00 am ET and join […]
MySQL + Neo4j for AI Workloads: Why Relational Databases Still Matter
MySQL 8.0 JSON Functions: Practical Examples and Indexing
PostgreSQL minor release postponed in Q1’ 2026
In case you are awaiting the February PostgreSQL Community minor update released on plan on February 12 we want to make sure that our users and customers are up to date and aware of what to expect.