Some contributions improve MariaDB Server by adding new capabilities.
Some go further: they start from a concrete production problem with an existing feature, not a bug, but a design limitation, solve it upstream, and leave the whole ecosystem better off.
This is one of those contributions.
The platform team at Headout, a global platform that helps travelers discover and book curated real-life experiences, encountered a few inefficiencies in MariaDB Server around temporary tables and the HEAP engine. Instead of treating these as isolated local problems, they worked upstream. Arcadiy Ivanov, operating through Karellen, Inc.
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Interview with Federico Razzoli, nominated in the Community Leadership category.
The MariaDB Foundation Sea Lion Champions program celebrates the people and organizations who help make the MariaDB ecosystem stronger, more open, and more useful for everyone.
Behind every open-source project, there are contributors whose work takes many forms. Some write code. Some review, test, document, teach, organize, advocate, support users, build tools, or bring MariaDB into production environments where it proves its value every day. Together, they help MariaDB remain a vibrant, collaborative, and industry-relevant database platform.
To highlight this diversity of contributions, we are launching a new series of interviews with nominees for the MariaDB Foundation Sea Lion Champions program.
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Continue reading “MariaDB Foundation Sea Lion Champions Nominees: Federico Razzoli”
TAF 3.0 introduces the new TAF Results Backend, a structured results database and parser pipeline that delivers fully automated performance change detection. This system uses a deterministic workload hash, schema‑driven baselines, and stored‑procedure‑driven comparison. No procedural comparison code. No special‑case logic. Everything is clean and automatic.
Workload Hash
Every test run gets a workload hash and parser builds it from:
- test + suite identity
- system identity
- database maker + engine
- database version normalized to major only (MariaDB, MySQL, PG, any maker)
- configuration identity
- workload parameters (threads, rows, tables, ranges, warmup, connector)
- harness + client versions
- iteration count
- requested duration
This hash is the identity of the workload.
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Continue reading “TAF 3.0 — Results Backend With Automated Performance Change Detection”
During the last MariaDB Foundation Board Meeting (24 June 2026), Barry shared how it can be difficult to deploy an upgrade immediately and that they sometimes have to wait for one that fixes security bugs. Wait for the validation, wait for the fix, and the release. Even if the MariaDB engineers are doing incredible work, it might still not be fast enough for the security team.
That’s where Barry requested MariaDB implement a query-rewriter plugin, like the one in MySQL, to address the fact that, in a multi-tenant environment, certain queries that would trigger known vulnerabilities are never legitimately used by applications.
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Continue reading “MariaDB Server Plugins: disabled functions”
MariaDB 13.1 Preview is full of nice things.
Some are immediately visible to developers, like the new JSON operators. Some are very useful to DBAs, such as configuration validation. And some are about making security and access control easier to manage.
Today, let’s look at one of those: DENY, also known as negative grants.
Yes, negative grants.
It sounds a bit strange the first time you hear it, but the idea is very simple:
Sometimes it is easier to say “you can access everything here, except this”.
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Continue reading “MariaDB 13.1 Feature in Focus: DENY / Negative Grants”
MariaDB Foundation is pleased to welcome Continuent as a new Silver Sponsor.
Continuent develops solutions for organizations running business-critical applications on MariaDB and other MySQL-compatible databases. Its flagship product, Tungsten Cluster, helps organizations manage database availability, disaster recovery and distributed deployments across on-premises, cloud and hybrid environments.
The company has worked with open-source database technologies for more than two decades and brings extensive experience from demanding production environments across SaaS, financial services, telecommunications, e-commerce and other industries.
“Continuent has a long history in the MariaDB and wider open-source database ecosystem.
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Continue reading “Continuent joins MariaDB Foundation as a Silver Sponsor”
MariaDB Server has long supported a flexible plugin architecture. Plugins allow developers to extend server functionality in areas such as data types, auditing, storage engines, information schema tables, and more.
Today, MariaDB Server plugins are typically developed in C or C++, like the server’s codebase. At least for a while
Even with the current plugin-writing approach, familiarity with MariaDB internals is beneficial because it enables you to do things you otherwise cannot. But it is not required.
A new development idea, MDEV-40189: Support plugins written in various languages, explores whether MariaDB Server could make plugin development accessible from additional programming languages.
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Continue reading “Lowering the Barrier for MariaDB Plugin Development: Plugins in More Languages”
MariaDB Foundation is pleased to announce that Nextcloud has renewed its Silver sponsorship for another year.
Nextcloud and MariaDB are widely used together by organisations that want greater control over their data and infrastructure. Both projects form part of a broader open-source ecosystem that enables businesses, public-sector organisations and individuals to build digital services without unnecessary dependence on proprietary platforms.
Over the past year, our collaboration has also developed through the Privacy-First Solution Stack, which brings together Nextcloud, Passbolt and MariaDB Server in a practical open-source architecture for secure collaboration, password management and data storage.
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Continue reading “Nextcloud renews its Silver sponsorship of MariaDB Foundation”