Category: Development
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How to Succeed in the MariaDB Python Hackathon, Bangalore

Last Friday, we hosted an Ask Me Anything session with HackerEarth – and we promised to share the same insights here in written form. So here it is: your guide to success in the MariaDB Python Hackathon!
A Great Idea Is Only the Beginning
A brilliant idea submission is just the start. The real work lies in the development — and that’s exactly what’s happening this month.
We want you to succeed. Success can mean that your hackathon contribution is […]
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MariaDB and AI: Building the Bridge That Really Matters

Not what AI can do for MariaDB – but what MariaDB can do for AI
I have hinted at this before (This Month in MariaDB – August 2025), but it deserves to be said again: our vision for MariaDB’s role in AI is both clear and ambitious. We do not simply want to participate in the AI space – we aim to be the bridge between real-world data and modern AI systems.
Large Language Models are, at their core, vast […]
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MariaDB Bangalore Hackathon: Ideation Phase Closing

The final days are here for the Foundation’s first large-scale hackathon, the MariaDB Python Hackathon we’re organising in partnership with BangPypers (the Bangalore Python Meetup, a group with about 14,000 members) and HackerEarth (a Hackathon organiser). Do come with your final submissions of ideas at mariadb-python.hackerearth.com within the next two days – in October, it’s development time!
The magnitude is new for MariaDB Foundation
Already, we’re quite proud of the results. Last Wednesday, I reported to the MariaDB Foundation Board […]
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Deep dive into Clang sanitizer testing with MariaDB (Post Event)
Earlier I posted that this presentation was about to happen, and it did! I presented to a keen audience of over 20 people live, and number who watched later (it was in a rather early US time, however attracted a number of attendees from Europe, India, Thailand all the way to east of Australia at UTC+10:30.
Below is the video, and the slide outline is available.
The journey to this presentation began as a request to update our Clang version […]
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Do they even test this?!
That’s the question every tester dreads to hear, because it usually means we’ve let something really embarrassing slip into a release.
The real answer is, “Yes, we do,” though that doesn’t offer much comfort if you’re facing issues in production. Still, during quieter moments, people sometimes ask less rhetorically what kind of testing takes place in MariaDB. Let’s dive into that.
A path of a bugfix into a maintenance release
When a pull request (or an internal patch outside the […]
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Per-table unique FOREIGN KEY constraint names – new feature in MariaDB 12.1
For historical reasons, the handling of FOREIGN KEY constraints in MariaDB Server is somewhat peculiar. Unlike CHECK constraints, which are being enforced at the query execution layer for all tables, FOREIGN KEY constraint definitions will simply be ignored unless the underlying storage engine supports them.
The storage engine is not only responsible for enforcing referential integrity between tables, but also storing the constraint definitions. Currently, InnoDB is the only storage engine that supports foreign key constraints, between persistent, non-partitioned tables.
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Make JSON DEPTH unlimited – new feature in MariaDB 12.1
At some point, nearly every developer encounters a common challenge: working with deeply nested JSON only to run into an arbitrary depth limit imposed by the database. In our case, that hard cap was set at 32 levels — sufficient for many scenarios but too restrictive for more complex or dynamic data structures. To address this, we decided to remove the limitation entirely.
The database now supports JSON documents and JSON paths with virtually unlimited nesting! This change unlocks the […]
