Planet for the MySQL Community

Aligning MySQL Extensions with Existing Component Services

2026-08-19T17:37:59+00:00

The VillageSQL Extension Framework now lets developers directly consume MySQL component services within their extensions.

Postgres pioneer credits Oracle with helping his database take over the world

2026-08-19T12:37:00+00:00

Big Red's acquisition of MySQL sent users running toward the open source alternative, says Michael Stonebraker

Stop guessing at gcache: inspect Galera/PXC write sets with gcache-inspector

2026-08-19T08:23:50+00:00

The common practice is to size the Galera Cache based on write volume measured during peak load, but often it is more of a guesswork. The writeset cache capacity planning is crucial to shorten the maintenance time and avoid long state transfers while the cluster runs with reduced compute power. Now, if you could understand … Continued

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“If GitHub was stable, these alternatives would not be as interesting”: Cursor launches Origin as GitHub goes dark

2026-08-18T19:47:17+00:00

♦

Cursor has officially thrown its hat into the code-hosting ring with Origin, a Git-compatible platform built for a world where

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DuckDB 2.0 coming this fall with client/server mode

2026-08-18T18:35:44+00:00

DuckDB, the analytics database with high-end features in a single easily deployed binary, is due to release a major update, version 2.0, this fall.

In a blog post on the DuckDB site, the project’s maintainers outlined several key features that motivated a major version bump. The single biggest is a client/server mode, allowing DuckDB to function both as a compact

What a careful MySQL to MariaDB migration still misses

2026-08-18T16:58:35+00:00

The MariaDB Migrator announcement post introduced the MySQL-to-MariaDB migration tool and walked through its four modes. This post is about […]

Help Test the MySQL Upgrade Advisor: A Community Upgrade-Planning Wizard for MySQL Shell

2026-08-18T14:44:21+00:00

Choosing how to upgrade a MySQL database is rarely just a question of source and target versions. The best approach can depend on database size, storage engines, replication topology, available infrastructure, acceptable downtime, backup readiness, application compatibility, and rollback requirements. A small standalone database with a long maintenance window may be a good candidate for […]

Seravo becomes a Silver Sponsor of MariaDB Foundation

2026-08-18T13:35:41+00:00

MariaDB Foundation is delighted to welcome Seravo as a Silver Sponsor, turning a long-standing relationship in the open-source ecosystem into formal support for the future of MariaDB. …

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Seravo becomes a Silver Sponsor of MariaDB Foundation appeared first on MariaDB.org

Village News: MySQL News + Events (18 August 2026)

2026-08-18T12:00:36+00:00

A curated roundup of August 2026's top MySQL and open-source database news, featuring MySQL 9.7 updates, Postgres, and upcoming global events.

MariaDB 12.3 LTS Webinar: Performance, Scalability, High Availability & the AI-Native Database

2026-08-18T10:45:31+00:00

Our MariaDB 12.3 LTS webinar is now available as a free PDF download. Over 60 minutes, Shiv Iyer — Founder & CEO of MinervaDB and a database engineer who has spent three decades inside MySQL, [...]

Poisoned Postgres connection pools

2026-08-18T00:00:00+00:00

An engineer's worst nightmare is waking up to a seemingly read-only database with no clear issue in sight. Let's dig into why this happens, and how AI can help solve it.

Fixing Old Software Bugs Without Thinking

2026-08-18T00:00:00+00:00

I previously came across an issue in my benchmarking work where I relied on the Latency Histogram section of sysbench output. On Linux it worked fine — I generally ran my workload there, so it never mattered.

Percona University Comes to Uruguay

2026-08-17T16:34:42+00:00

Percona University is coming to Montevideo. On September 23rd, 2026, we’re getting together for a full day of technical talks on open source software, and you are invited! If you work or study with open source software in Uruguay, this one is for you. It’s a whole day of learning, with the people who build … Continued

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MariaDB High Availability: Maximum Availability Solutions in MariaDB 12.3 LTS

2026-08-17T11:03:37+00:00

MariaDB high availability reached a new baseline with MariaDB Server 12.3 LTS, GA on 2026-05-29 as version 12.3.2. For the first time, a MariaDB LTS release ships parallel replication between Galera Clusters (MDEV-20065), closing the [...]

What is a data topology?

2026-08-17T00:00:00+00:00

A data topology describes the sharding scheme a Neki router uses to map logical PostgreSQL tables to physical shards and route queries.

Curating DuckDB Datasets Leveraging AI

2026-08-17T00:00:00+00:00

In Curated MySQL Data Sets for Realistic Testing I described datasets assembled the manual way — download, schema, load, validate, document — over hours or days per source. This post is the follow-up I promised: what changes when AI assists the same workflow, using DuckDB as the target engine and GeoNames as the first example.

Extending MariaDB with Native Aggregate Plugins: Laying the Groundwork for HyperLogLog

2026-08-16T16:00:46+00:00

MariaDB already allows developers to add new Pluggable Data Types and scalar Plugin Functions. One missing piece has been Pluggable Aggregate Functions operating on PDTs. That matters for functionality such as HyperLogLog, where an extension needs to aggregate values into a custom statistical sketch while preserving its native SQL type. …

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Why INSERT IGNORE should not be used

2026-08-16T00:00:00+00:00

Let’s say you’re building a reference table from source data, e.g. a silver medallion table from a primary source. In this example I am using a file of random locations on the globe extracted from OpenStreetMap (OSM) as my primary source.

What Constitutes Clean Data?

2026-08-15T00:00:00+00:00

Clean data is one of those terms everyone uses and few define precisely. Row counts match? No nulls in key columns? Values within expected ranges? All useful checks — and all insufficient once you move from a table view to a visualization view.

MariaDB InnoDB Disk Space & Fragmentation

2026-08-14T22:07:02+00:00

As a DBA, disk space has always worried me. In fact, the biggest problem for a MySQL/MariaDB DBA is the large, fragmented InnoDB Tablespaces. It was even more problematic when a single tablespace handled everything. But even with a tablespace per table (innodb_file_per_table=ON) fragmentation on large tables can still be an issue and waste disk […]

MariaDB Foundation Advances TAF with HammerDB 6.0 and xt_reservoir Integration

2026-08-14T15:48:21+00:00

Overview
While validating MariaDB RSS stability under stored procedure workloads, I ran into unexpected memory growth. The goal was straightforward: confirm that MariaDB was not leaking memory when running TPROC-C stored procedure workloads. …

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MariaDB Foundation Advances T

More Control, More Visibility: Deferred Maintenance & Events in MySQL HeatWave

2026-08-14T15:05:22+00:00

MySQL HeatWave now offers more control and transparency around maintenance. With Deferred Maintenance and Maintenance Events, customers can better align database maintenance with their business schedules and operational processes to reduce disruption. Customers can now temporarily disable disruptive maintenance which requires system reboots. To ensure the ongoing security of customer environments,

What's New With Golang Generics

2026-08-14T00:00:00+00:00

Go is conservative with adding new features, but it does happen. Generics were new once. Here's some ways that generics have evolved in recent versions, and how Dolt incorporates them.

Curated MySQL Data Sets for Realistic Testing

2026-08-14T00:00:00+00:00

Synthetic benchmarks have their place, but I have always preferred working with real data. Not client production data — that stays private — but publicly available datasets that reflect the messy shapes, skewed distributions, and indexing challenges you encounter in the wild.

MariaDB Community Server 10.6.28 now available

2026-08-13T20:30:08+00:00

MariaDB is pleased to announce the immediate availability of the MariaDB Community Server 10.6.28 maintenance release. This is the final […]

More to Explore: What’s New on Planet MySQL

2026-08-13T18:17:03+00:00

Planet MySQL has always been about discovering what’s happening across the MySQL community. Now, there’s even more to explore. We’ve added new ways to discover the projects and products that make up the broader MySQL ecosystem, find upcoming MySQL events, and search the wealth of content shared by the community. At the center of these […]

Replicating from InnoDB into a DuckDB storage engine

2026-08-13T17:23:27+00:00

Our first post showed MySQL 9.7 with one change: mark a table ENGINE=DuckDB and its analytical queries run in DuckDB instead of InnoDB. The question we kept getting after that was about replication. Can you keep a normal InnoDB primary for the writes, and run a replica where the big tables are ENGINE=DuckDB? Then the … Continued

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MySQL Database Security: A 12-PointChecklist for 2026

2026-08-13T12:40:15+00:00

Database misconfigurations are among the most common causes of data breaches — and most of them are preventable. The majority of MySQL security improvements are straightforward, do not require specialized […]

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MariaDB 13.1 Feature in Focus: JSON Operators and JSON_TABLE Improvements

2026-08-13T09:50:53+00:00

MariaDB 13.1 introduces the long-awaited `->` and `->>` JSON operators, together with `FORMAT JSON` support in `JSON_TABLE()`. Discover how these improvements simplify JSON queries, preserve nested objects and arrays, and improve compatibility with MySQL applications.

MariaDB 13.1 Feature in Focus: JSON Operators and JSON_TABLE Improvements

2026-08-13T09:45:51+00:00

JSON support in MariaDB has improved significantly over the years.
We have functions to create JSON documents, extract values, modify objects, inspect arrays, compare documents, and even transform JSON into relational rows using JSON_TABLE(). …

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MariaDB 13.1 Feature in Focus: JS

Doltgres is as Fast as MySQL is Slow

2026-08-13T00:00:00+00:00

Overview of recent performance optimizations to Doltgres that brought it on par with MySQL

How to set up change data capture for real-time database pipelines

2026-08-12T12:08:46+00:00

Positions a 2026 step-by-step CDC guide covering Debezium, Kafka Connect, MySQL binlogs, and PostgreSQL WAL.

How to reduce slow query incidents in high-traffic MySQL apps

2026-08-12T10:55:32+00:00

Promises an eight-step MySQL slow-query process covering logs, EXPLAIN, indexes, pooling, timeouts, and alerting.

COSCUP 2026: Planning your upgrade to MySQL 9.7

2026-08-12T00:00:00+00:00

I recently had the pleasure of presenting Planning your upgrade to MySQL 9.7 at COSCUP 2026 in Taipei, Taiwan. COSCUP (Conference for Open Source Coders, Users and Promoters) is one of the largest open source conferences in Asia, and the community there is always engaged and technically sharp.

Migrate RDS and Aurora logs to CloudWatch Infrequent Access

2026-08-11T16:19:05+00:00

Organizations running Amazon RDS and Amazon Aurora often pay full CloudWatch Logs ingestion rates for database logs they rarely access. This post shows how to build an automated, tag-driven solution that migrates RDS and Aurora CloudWatch log groups from the Standard to the Infrequent Access log class and cuts log ingestion costs by about 50%.

From Replication to Resilience: Miguel Araújo on Building the Operational Layer of MySQL High Availability

2026-08-11T13:28:22+00:00

Q1. As the tech lead for AdminAPI, you’ve spent years helping shape how MySQL users deploy and manage InnoDB Cluster, ReplicaSet, and ClusterSet environments. From your experience, what are some of the most important...

MySQL Replication: How to Set It Up and Monitor It Effectively

2026-08-11T12:16:15+00:00

MySQL replication is one of the most relied-upon features in production MySQL environments. It powers read scaling, disaster recovery, analytics offloading, and geographic redundancy. It is also one of the […]

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Percona for MongoDB: RHEL 10, Its Derivatives, and Debian 13 – On Both x86_64 and ARM

2026-08-11T12:15:41+00:00

We’re happy to announce that Percona Server for MongoDB (PSMDB) 8.0.28-12 extends platform support to RHEL 10 and its derivatives (Oracle Linux 10, Rocky Linux 10, AlmaLinux 10, and other RHEL-compatible distributions) for both x86_64 and ARM (aarch64) architectures. This release also adds support for Debian 13 “Trixie” on x86_64 and ARM64. We’ll continue to … Conti

Amazon RDS for MariaDB now supports MariaDB 12.3

2026-08-11T08:54:00+00:00

Starting today, Amazon RDS for MariaDB supports MariaDB major version 12.3, the latest Long-Term Support release from the MariaDB community. This release supports MariaDB 12.3.2 minor version.

MariaDB 12.3 includes Oracle TO_DATE() function compatibility, reducing the code changes needed when migrating applications from Oracle to MariaDB. It adds an IS JSON predicate, so you can

How to set up automated database failover testing

2026-08-11T08:05:24+00:00

Covers 2026 failover testing for MySQL, PostgreSQL, and MongoDB-RTO targets, health checks, trigger scripts, and troubleshooting.

Making the PostgreSQL Documentation Even Better

2026-08-11T06:40:00+00:00

While working on our project “PostgreSQL for Dolphins and Sea Lions,” I pored over the PostgreSQL documentation on replication.

Since I’m not quite up to speed on this topic yet, I like to look up certain terms (parameters, functions, etc.) every now and then to see exactly what they mean or how they work (RTFM!). That’s exactly why links were originally invented—the very thing that first

The dangers of Postgres subtransactions

2026-08-11T00:00:00+00:00

Subtransactions can slow down your entire PostgreSQL server and break your high availability strategy by keeping new read replicas from accepting connections.

MariaDB Foundation is pleased to welcome Auree as a Silver Sponsor.

2026-08-10T15:34:54+00:00

Auree is building a cloud-independent platform for deploying and operating highly available open source databases, including MariaDB, inside customers’ own cloud accounts. Its Bring Your Own Cloud model allows organisations to choose their cloud provider, region, infrastructure size, and security environment while Auree automates database provisioning, monitoring, backups, clustering, and

Why Agentic AI Architecture Needs a Database, Not Just a Vector Store

2026-08-10T13:00:00+00:00

Agentic AI architecture is the system design that lets an AI agent perceive context, reason over it, call tools, maintain memory, and take actions across multiple steps. It spans the model, the orchestration layer, and the data infrastructure that makes an agent’s work durable rather than disposable. Most teams get the model and framework right […]

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Teaching MariaDB About Your Domain

2026-08-10T11:31:31+00:00

When we talk about extending a database server, we usually think about features that could benefit a very large number of users. A new authentication mechanism, a storage engine, an audit plugin, a new generic data type such as UUID or INET, additional JSON functions… these are relatively easy to justify because their potential audience […]

MySQL 9.7 LTS: Troubleshooting Replication Lag Using New Metrics

2026-08-10T09:13:48+00:00

Learn how to troubleshoot MySQL replication lag in MySQL 9.7 LTS using the new Replication Applier Metrics Component for deeper observability.

MariaDB 12.3 LTS: Advances and Building Fault-Tolerant MariaDB Infrastructure at Internet Scale

2026-08-10T09:10:03+00:00

MariaDB 12.3 is the current long-term support release of MariaDB Community Server. It reached Stable/GA on 28 May 2026 and is maintained until June 2029, making it the first LTS line since MariaDB 11.8. For [...]

MySQL and MariaDB High Availability vs. Disaster Recovery: What’s the Difference (and Why It Matters)

2026-08-08T09:51:09+00:00

High availability keeps MySQL and MariaDB applications running through routine local failures, while disaster recovery restores service after a site or regional outage. This article explains how RTO, RPO, distance, synchronous replication and asynchronous replication shape each strategy, and how Continuent Tungsten Cluster combines local HA with multi-site DR.

MariaDB Node.js Connector 3.5.4 and 3.4.7 now available

2026-08-07T17:48:20+00:00

MariaDB is pleased to announce the immediate availability of the MariaDB Connector/Node.js 3.5.4, 3.4.7, 3.3.4, and 3.2.5 GA releases. Download […]

The open way of Percona Search for MongoDB

2026-08-07T14:55:06+00:00

Percona Search for MongoDB is Percona’s downstream distribution of mongot, the search engine that provides MongoDB’s full-text and vector search capabilities. With this addition, you can power your applications with AI and advanced search techniques – anywhere, and without vendor lock-in. It’s the same search engine that powers MongoDB Atlas Search. Percona Search for MongoDB

The Complete Agent State Stack: Memory, Files, and Serverless Database Persistence for AI Apps

2026-08-07T13:00:00+00:00

A serverless database is a fully-managed database that automatically scales compute and storage with demand, requires no server provisioning or capacity planning, and bills only for actual usage, including scaling to zero when idle. The provider handles infrastructure; you handle data. That definition covers the category. It doesn’t cover the problem most teams actually face […]

The DuckDB MySQL engine at 500 GB

2026-08-07T12:09:29+00:00

We ran DuckDB MySQL storage engine at scale factor 500. It is around 500 GB of raw TPC-H, three billion lineitem rows on an 80-core server with 187 GB of RAM. Three engines on the same box: InnoDB, our MySQL+DuckDB engine, and plain DuckDB as the reference. Here is what came out. InnoDB finished 18 … Continued

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Retail Data Analytics: Ultimate 2026 Modern Retail Stack

2026-08-07T10:45:01+00:00

Retail data analytics is the difference between a merchandiser who reprices a slow-moving SKU on Tuesday morning and one who discovers the markdown opportunity in a month-end deck. Modern retail runs on a data platform, [...]

MySQL Index Optimization: How to Speed Up Your Database Queries

2026-08-07T08:49:43+00:00

If there is one change that can turn a 10-second MySQL query into a millisecond one, it is adding the right index. And if there is one change that can […]

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Concurrency vs. Throughput: why more parallelism can make databases slower

2026-08-07T00:00:00+00:00

Increasing throughput sometimes requires reducing parallelism. A look into why this is the case for Vitess + MySQL databases

Why Attend TiDB SCaiLE 2026: Same Complexity, Different Clock Speeds

2026-08-06T20:04:58+00:00

A single user action in an agentic application no longer maps to a single database query. It spawns agent instances that branch context in milliseconds, hold memory across sessions, and provision their own tenants without waiting for a human. At Manus, agents create more than 90% of new database clusters. The stacks underneath them were […]

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Doltgres 1.0

2026-08-06T00:00:00+00:00

Doltgres, the Postgres-flavored version of Dolt, is now 1.0 and ready for production.

Open Source Data Layers Will Win the AI Future

2026-08-05T19:20:17+00:00

For most of the cloud era, infrastructure decisions followed a familiar pattern: choose the fastest path to production, accept some proprietary dependencies, and optimize later. AI breaks that pattern. Coding agents now reshape applications in hours, while models, frameworks, and workload shapes change underneath them. That leaves the data layer as the one place a […]

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Understanding MySQL Replication "fatal error 1236": "Replica has more GTIDs than the source has, using the source's SERVER_UUID"

2026-08-05T13:50:42+00:00

This MySQL replication error — fatal error 1236 / Replica has more GTIDs than the source has, using the source's SERVER_UUID — shows the importance of thinking before acting. I am glad a non-DBA Colleague asked me about it, because if he had restarted replication, it would have caused a much bigger mess. Often, we are tempted — or pushed — to just restart things

How to Prepare a Database for a PCI-DSS Audit (2026)

2026-08-05T11:58:01+00:00

Prepare your MySQL, PostgreSQL, or MongoDB database for a PCI-DSS audit. Learn how to scope your CDE, encrypt data, enforce RBAC, and configure audit logging.

MySQL vs MariaDB in 2026: What Every DBA Needs to Know

2026-08-05T10:52:57+00:00

MySQL and MariaDB share a common origin — MariaDB was forked from MySQL in 2009 by its original creator following Oracle’s acquisition. For several years, they stayed close enough that […]

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Building on Open Ground: Ilia Kors on Why Aqtra Chose MariaDB as the Native Foundation of Its Enterprise Platform

2026-08-05T08:51:44+00:00

Q1. Aqtra is building a Development Infrastructure Layer that enables organisations, cloud providers, and service partners to create and operate business applications, ERP solutions, portals, and automation services on a common foundation. That is a...

ClusterControl 2.5.0 brings ClickHouse support to on-prem, cloud and hybrid environments

2026-08-05T08:38:18+00:00

ClusterControl 2.5.0 is here, and it marks a milestone for the platform: ClickHouse joins the family of supported database engines — and with it, a capability no analytics vendor’s cloud can offer you. Wherever you run ClusterControl — on-premises, in any cloud, or hybrid — you can now deploy ClickHouse either as a standalone OLAP […]

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MySQL 8.0.17 GTID Crash Safety Improvement

2026-08-04T22:30:04+00:00

I have known for some times that there is an interesting improvement in MySQL 8.0.17 regarding GTID Crash Safety, but I have not had the time nor the need to look into it before. When writing my last post (Understanding MySQL Replication "fatal error 1236": [...]), I saw something interesting related to this, and it is now time to cover this on my blog. From my point of view, this change is

Everyone Records the MySQL Audit Log. Nobody Reads It.

2026-08-04T20:29:10+00:00

Everyone records audit logs. Almost nobody reads them, because reading them means grep on the database server, a cursor with no WHERE clause, or a log pipeline that costs thousands a year. There is a cheaper shape: keep the answer, not the log. And you do not need an audit plugin to get it.

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What Is Data Sovereignty and How Does MariaDB Protect Sovereignty in Cloud Databases?

2026-08-04T18:33:49+00:00

Every organization now operates in a world where data doesn’t just need to be secure – it needs to be […]

Hear Ye, Hear Ye: A Guide to MariaDB’s Governance Model

2026-08-04T18:07:22+00:00

Be it known: MariaDB Server now has a clearer, publicly documented governance framework covering technical roles, subsystem ownership, decision-making, response expectations and continuity.
Open source begins with access to the code. …

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Hear Ye, Hear Ye: A Guide to MariaDB’s Governance Model appe

How to Avoid Hidden Duplicate Key Errors in MySQL utf8mb4 Migrations

2026-08-04T17:36:19+00:00

Learn how character set and collation changes (latin1/utf8mb3 to utf8mb4_0900_ai_ci) introduce duplicate key errors in MySQL and how to validate source data beforehand.

Monthly Product Pulse: August 2026—Oracle Technical Resources

2026-08-04T14:27:23+00:00

Welcome to the August edition of Monthly Product Pulse, your monthly round-up of the latest technical resources from Oracle product teams. This month’s highlights include AI development tutorials, Oracle APEX community opportunities, new Oracle Spatial capabilities, Oracle MicroTx updates, and the latest MySQL technical content. Whether you’re building AI-powered applications, modernizi

Migrating Real-Time Data into TiDB with Debezium CDC

2026-08-04T13:00:17+00:00

Moving data into a new database is rarely a one-shot copy. Migrating off a legacy system, adopting a distributed SQL database, carrying out a heterogeneous database migration, or standing up an analytical replica all share the same challenge. You have to move a large, already-populated dataset and keep it continuously in sync until you are […]

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Recovery Optimization for Large MySQL Transactions

2026-08-04T12:20:32+00:00

This article is also available in Chinese: 中文版. Browse all English articles. Have you ever run into a mysqld process that has been starting for a long time and still won’t come up? When that happens, you can use perf top to check what the MySQL process is mainly doing. If what you see looks like the figure below —...

Where can you find MySQL from August through October 2026?

2026-08-04T09:51:23+00:00

August 3, 2026 7 minute read Lenka Kasparova MySQL Community Manager The MySQL Community team will continue to be active across conferences, user group meetups, open source events, and regional community activities throughout August, September, and October 2026. While...

MySQL Backup Best Practices: A Complete Guide for DBAs in 2026

2026-08-04T08:49:02+00:00

Most teams believe they have a solid backup strategy. In practice, many have a backup process they set up once, have not tested recently, and would discover is broken only […]

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Online Migration from Binlog to GTID Replication in MySQL 8.x

2026-08-04T08:15:44+00:00

Learn how to convert traditional file/position MySQL replication to GTID-based replication online in MySQL 8.x without rebuilding replicas or taking application downtime.

Using CloudWatch Database Insights to troubleshoot query performance from calling services

2026-08-03T18:00:23+00:00

Learn how to use the calling services feature in Amazon CloudWatch Database Insights to identify which applications are calling your databases and view their performance metrics, so you can pinpoint root causes and contact the right team in minutes rather than hours.

MySQL Development as it Happens – Innovating Together

2026-08-03T14:41:38+00:00

Henrik IngoMySQL Community Architect In May we hosted the first MySQL Contributor Summit 2026. We arrange such Summits every quarter, and it’s a forum where contributors come together and make proposals, and then discuss them, on what they wish to work on, or see someone else work on, in future MySQL versions. All of the presentations are now […]

Where can you find MySQL from August through October 2026?

2026-08-03T14:19:30+00:00

The MySQL Community team will continue to be active across conferences, user group meetups, open source events, and regional community activities throughout August, September, and October 2026. While some of our August events were featured in our previous event update, we’ve included them here again with the latest information. Whether you’re interested

Artificially Delayed Replication with PostgreSQL

2026-08-03T07:53:00+00:00

While working on our project titled “PostgreSQL for Dolphins and Sea Lions,” I pored over the PostgreSQL documentation on replication. What struck me was that PostgreSQL does NOT support artificially delayed replication—at least according to this documentation.

After I’d already been thinking about how one might possibly cobble together artificially delayed replication using PostgreSQL’s

No Index GroupBy Optimization

2026-08-03T00:00:00+00:00

Sneak peek at one of the optimizations applied to Dolt and Doltgres

CloudJump III Optimizing Cloud Databases for Tiered Storage(SIGMOD 2026)

2026-08-03T00:00:00+00:00

在云原生数据库的演进中, 计存分离让计算层和存储层可以独立扩展, 共享存储让多个计算节点访问同一份数据成为可能.

Wirekite becomes Silver Sponsor of MariaDB Foundation

2026-08-02T20:09:53+00:00

We are pleased to welcome Wirekite as a new Silver Sponsor of MariaDB Foundation.
Wirekite is an enterprise data movement platform focused on high-performance extract, load, migration, and replication workflows. …

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Wirekite becomes Silver Sponsor of MariaDB Foundation appeared first on MariaDB.org<

What’s New At Releem - June 2026

2026-08-01T02:54:00+00:00

Over the past few months, we’ve been expanding Releem into more database environments while making recommendations easier to understand and act on. June continues that work with updates designed to shorten the path from identifying an issue to resolving it safely.

Upgrading Oracle Linux when running Oracle databases

2026-07-31T16:33:10+00:00

I recently had to upgrade an Oracle Linux production server running 19.30 Oracle databases for one of our customer. In this post, I will share with you the full set of steps that need to be carried out to run an in-place Oracle Linux upgrade when running Oracle databases. The method will be the same […]

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MySQL July 2026 GA Releases Now Available

2026-07-31T14:51:30+00:00

The July 2026 MySQL releases are now available, including: MySQL 26.7.0 is the first generally available Innovation release following MySQL 9.7 LTS and the first MySQL release to use the new calendar-versioning model. MySQL 9.7.2 and MySQL 8.4.11 continue the quarterly maintenance cadence for the current MySQL Long-Term Support release lines. A new calendar-versioning model […]

Stored Procedures memory consumption in Percona Server for MySQL

2026-07-31T11:50:51+00:00

1. What it is about This investigation began as a performance comparison for different memory allocators. However, during benchmarking, I discovered unexpected effects deserving a more detailed explanation. I hope you find these findings both interesting and useful. Imagine you need to set up a MySQL database server. Every detail is planned: the operating system, … Continued

The pos

How to Use the MySQL Slow Query Log to Find and Fix Performance Bottlenecks

2026-07-31T10:33:17+00:00

Every MySQL performance problem leaves a record. The slow query log is where that record lives — a straightforward, built-in tool that captures every query taking longer than a threshold […]

The post How to Use the MySQL Slow Query Log to Find and Fix Performance Bottlenecks appeared first on Webyog.

Summary of MySQL Public Discussion #5: The Contributor Experience

2026-07-31T06:00:00+00:00

The fifth MySQL Public Discussion as part of our Community Engagement plan. The plan includes accelerating innovation in MySQL Community Edition, increasing community contributions and expanding the MySQL ecosystem overall. This session was focused on the contributor experience and the ongoing work to make contributing to MySQL more transparent and accessible. The session covered MySQL […]

Massively parallel Postgres backups

2026-07-31T00:00:00+00:00

PlanetScale backs up petabyte-scale sharded Postgres databases in hours using parallel infrastructure, object storage, and WAL replay.

Announcing ProxySQL 3.0.10, 3.1.10, and 4.0.10

2026-07-31T00:00:00+00:00

ProxySQL 3.0.10, 3.1.10, and 4.0.10 are out, led by a security fix in the compressed-packet path, AWS RDS Blue/Green monitoring, per-hostgroup query timeouts, and complete configuration round-tripping.

DataEngBytes Sydney Overview

2026-07-31T00:00:00+00:00

I have just returned from my first DataEngBytes conference in Sydney. Here is a quick summary on my thoughts for the event. I plan to go into more detail on great points from presentations in later posts.

Percona Server for MongoDB 8.3 Technical Preview Is Now Available

2026-07-30T17:36:14+00:00

Percona Server for MongoDB 8.3 is available today as a Technical Preview. It is not for production. It is for your lab, your staging cluster, and your benchmark harness – and for sharing with us what works and what does not. Especially if this version is your segue to leverage upcoming full-text and vector search … Continued

The post Percona Server for MongoDB 8.3 Technical Pr

Vector Search Meets Distributed SQL: Why Agentic AI Does Not Need Another Database

2026-07-30T16:31:33+00:00

Key Takeaways Add a vector database to the existing stack. Sync it. Maintain it. Debug it when it drifts. Teams building agentic applications have largely accepted that sequence as the price of admission for working with embeddings, and the fourth step is the one worth pausing on. Drift is not an incidental bug waiting to […]

The post Vector Search Meets Distributed SQL: Why Agentic

MySQL Best Practice : not using date / time types, nor ENUM

2026-07-30T16:22:18+00:00

Today, I was reminded of a MySQL Best Practice, probably generalizable to all databases : using simple types, not complex types. Such complex types to avoid include the date and time data types (including TIMESTAMP) and ENUM. Let's see why. A little history about this, Baron Schwartz, a MySQL Legend who is not involved in the community anymore, compared using the TIMESTAMP type to

MariaDB again faces questions over Galera's open source future

2026-07-30T11:01:00+00:00

Support for the MySQL build ends in September as the company develops separate premium replication technology

MariaDB Java Connector 3.5.10, 3.4.4, 3.3.6, and 2.7.15 now available

2026-07-29T21:34:39+00:00

MariaDB is pleased to announce the immediate availability of the MariaDB Connector/J 3.5.10, 3.4.4, 3.3.6, and 2.7.15 releases. Release Notes […]

AI Chat With DBeaver Community Edition

2026-07-29T16:21:44+00:00

AI Chat With DBeaver Community EditionJuly 29, 2026

DBeaver recently introduced interactive chat capabilities into the free, open-source Community Edition. What does that mean?

It means some of your database tasks can be accomplished significantly faster!

First, you can ask for information without coding SQL. I love Structured Query Language, but it is m

When Tungsten Replication "Stalls" but Nothing Has Failed: A MySQL Metadata-Query Story

2026-07-29T14:45:31+00:00

A real-world troubleshooting guide showing how MySQL metadata query behavior can cause Tungsten Replicator to appear stalled despite healthy cluster status, with root-cause analysis and preventive configuration recommendations.

MySQL Performance Tuning: 8 Proven Techniques for Faster Queries

2026-07-29T12:21:02+00:00

Slow MySQL queries are one of the most common database problems — and one of the most solvable. Most performance issues don’t require new hardware or a rewrite. They require […]

The post MySQL Performance Tuning: 8 Proven Techniques for Faster Queries appeared first on Webyog.

After rewriting SQLite in Rust, Turso turns its sights on Postgres

2026-07-29T11:28:00+00:00

Cloud database upstart wants one virtual machine core to power multiple SQL frontends

From a Production Problem to MariaDB: Headout’s Open-Source Contribution Journey

2026-07-29T07:01:00+00:00

A production bottleneck at Headout led to a new MariaDB Server improvement. This is the story of how engineers, maintainers and AI-assisted development turned a real-world problem into an upstream open-source contribution.

From a Production Problem to MariaDB: Headout’s Open-Source Contribution Journey appeared first on MariaDB.org

MariaDB 12.3: Faster Vector Search with Matryoshka Optimization

2026-07-28T18:29:55+00:00

Achieving Fast Vector Search in MariaDB MariaDB Server 12.3 makes vector search faster where it matters most: the high-recall levels […]

Post-Quantum Cryptography support in MySQL

2026-07-28T17:00:00+00:00

Overview OpenSSL 3.5 integrates a number of algorithms resistant to attack by future quantum computers, commonly referred as Post-Quantum Cryptography (PQC). These include: Possibility of storing the vast amounts of TLS encrypted traffic now and decrypting it later once the quantum computers become capable enough is considered a real problem, so the governments and standards […]

Backups Using the MySQL Clone Operation

2026-07-28T09:40:00+00:00

We recently tested the PostgreSQL backup tool pg_basebackup and were very impressed with its remote backup functionality, which allows for both physical local and physical remote backups.

This led us to wonder whether a physical remote backup is also possible using the “new” MySQL Server Clone feature, which was introduced in MySQL 8.0.17 (July 2019).

The MySQL Clone o

TiDB Log Compaction: Faster Point-in-Time Recovery for Large Clusters

2026-07-28T06:25:48+00:00

For a large distributed SQL cluster, backup and restore define whether the business can recover from an accident inside a realistic service objective. As TiDB adoption grows across larger, more write-intensive workloads, many production clusters now hold tens or hundreds of terabytes of data. At that scale, point-in-time recovery (PITR) has to satisfy two goals that pull […]

MySQL 8.0 to 8.4 upgrade on RDS: how to prove your data survived

2026-07-28T00:44:04+00:00

Standard support for MySQL 8.0 on RDS ends on July 31. The in-place upgrade to 8.4 takes minutes and there is no way back. Here is how I checked, on a real RDS instance with every MySQL data type I could think of, that it did not change a single row.

The post MySQL 8.0 to 8.4 upgrade on RDS: how to prove your data survived appeared first on dbtrail.

Migrate self-managed PostgreSQL to Amazon RDS using the RDS console

2026-07-27T21:32:15+00:00

Migrate a self-managed PostgreSQL database on Amazon EC2 to Amazon RDS for PostgreSQL or Amazon Aurora PostgreSQL-Compatible Edition using the auto-migration capability in the Amazon RDS console, powered by AWS Database Migration Service (AWS DMS) homogeneous data migrations.

Adobe Commerce Chooses MariaDB as Its Default Database Platform

2026-07-27T12:49:48+00:00

Adobe Commerce is making MariaDB its default and recommended database
platform.

Adobe Commerce Chooses MariaDB as Its Default Database Platform appeared first on MariaDB.org

ScalaHosting Becomes a Gold Sponsor of MariaDB Foundation

2026-07-27T09:11:10+00:00

Global cloud hosting provider supports the continued development and adoption of open-source MariaDB
MariaDB Foundation is pleased to welcome ScalaHosting as a Gold Sponsor, strengthening the relationship between the MariaDB community and one of the hosting industry’s established cloud infrastructure providers. …

Continue reading \"ScalaHosting Becomes a Gold Sponsor of M

TLS Certificate Pinning and Best Practices in Azure Database for MySQL

2026-07-27T04:58:50+00:00

Transport Layer Security (TLS) encrypts data in transit between client applications and the server and authenticates the service endpoint in client-server authentication.

Azure Database for MySQL server certificates are issued by well-known trusted public Certificate Authorities (CAs), including Microsof

Introducing 🍃MClusterAdmin: A Lightweight GUI Tool for MongoDB DBAs

2026-07-27T00:00:00+00:00

Over the years working on various MongoDB troubleshooting cases, I’ve been wondering how to handle the longish JSON outputs from the most common diagnostic commands, like rs.status(), sh.status(), or db.currentOp(), not to mention db.serverStatus()! They are just painful and slow to read. I even came up with various scripts to present the data in table format, similar to what we know from MySQL, bu

MITRE ATLAS - A 2025 Review

2026-07-27T00:00:00+00:00

The MITRE ATLAS Matrix provides a working knowledge base of adversary tactics, techniques, and real-world case studies specifically for Artificial Intelligence (AI) and Machine Learning (ML) systems. It adapts the established MITRE ATT&CK adversary tactics and techniques matrix which is the standard reference for traditional IT cybersecurity.

MariaDB Performance Monitoring: 20 Essential Metrics Every DBA Should Track for Troubleshooting

2026-07-26T19:29:15+00:00

Why MariaDB Performance Monitoring Fails Without Baselines MariaDB performance monitoring is what separates a diagnosis from a guess. Most MariaDB incidents are never actually diagnosed. When a production cluster degrades at 02:00, the on-call DBA [...]

The Queen and the “Half That Wasn’t Told”

2026-07-26T18:55:29+00:00

The Queen of Sheba did not travel lightly.
She arrived in Jerusalem with difficult questions, a large caravan, camels carrying spices, and an impressive quantity of gold. …

Continue reading \"The Queen and the “Half That Wasn’t Told”\"

The Queen and the “Half That Wasn’t Told” appeared first on MariaDB.org

Say the Name: MariaDB, MySQL, and the Ecosystem We Share

2026-07-25T16:01:29+00:00

Names are important. They help us identify people, projects, products, pets, database servers, and occasionally the correct bug tracker. This may sound obvious, but the database world has spent more than fifteen years proving that it is not. MySQL and MariaDB share a substantial amount of history, syntax, tooling, knowledge, applications, and community. They also […]

The Agent Context Plane: How One Cluster Fixed the $50K Agent Bug

2026-07-24T14:32:46+00:00

Real-time data has been the promise of the analytics stack for a decade. Dashboards refresh, pipelines run, and a human reads the result. That model holds right up until you ask an agent to act on the data instead of look at it. At TiDB SCaiLE Europe 2026 in Stockholm, Bernard Kavanagh, Solutions Architect at […]

The post The Agent Context Plane: How One Cluster Fixed the $50K Agent

IBM continues as a Platinum Sponsor of MariaDB Foundation

2026-07-24T13:12:09+00:00

We are delighted to announce that IBM is continuing its support of MariaDB Foundation as a Platinum Sponsor.
IBM’s sponsorship brings together two major enterprise computing platforms, IBM® …

Continue reading \"IBM continues as a Platinum Sponsor of MariaDB Foundation\"

IBM continues as a Platinum Sponsor of MariaDB Foundation appeared first on MariaDB.org

Say the Name: MariaDB, MySQL, and the Ecosystem We Share

2026-07-24T06:58:58+00:00

MariaDB and MySQL share history, tools, protocols and a large technical community. But compatibility does not mean identity—especially when reporting bugs. A MariaDB Connector/C issue submitted to the MySQL bug tracker offers a funny reminder to say the product’s actual name.

Say the Name: MariaDB, MySQL, and the Ecosystem We Share appeared first on MariaDB.org

Postgres backups under the hood

2026-07-24T00:00:00+00:00

With backups being such a vital part of keeping your data safe, how do they actually work?

Foundational Frameworks for GenAI Security Analysis

2026-07-24T00:00:00+00:00

Three frameworks form the analytical foundation of this series’ threat analysis, selected for their complementary coverage of the GenAI security landscape and their broad adoption across enterprise security practices. The MITRE Adversarial Threat Landscape for AI Systems (MITRE ATLAS) maps tactics and techniques specific to AI systems.

Percona Operator for MongoDB 1.23.0: ClusterSync Migration, Vector Search, and PVC Snapshot Backups

2026-07-23T19:55:51+00:00

Percona Operator for MongoDB 1.23.0 makes the operator a place you move to, not just a place you start. A new ClusterSync component clones a live source and follows its change streams, so leaving a hosted service is a short cutover rather than a long outage. Alongside it, this release adds semantic vector search and … Continued

The post Percona Operator for MongoDB 1.23.0: ClusterSy

Amazon RDS for MySQL supports MySQL 9.7 in Amazon RDS Database Preview Environment

2026-07-23T18:05:00+00:00

Amazon RDS for MySQL now supports version community MySQL 9.7 in the Amazon RDS Database Preview Environment, allowing you to evaluate the latest Release on Amazon RDS for MySQL. This preview environment provides a sandbox where you can test applications and explore new MySQL 9.7 capabilities before they become generally available.

MySQL 9.7 is the latest Long-Term Support rel

The MySQL GUI Features Every Professional DBA Needs in 2026

2026-07-23T11:31:40+00:00

Choosing a MySQL GUI is one of those decisions that looks simple from the outside — they all let you run queries and browse tables — but the right choice […]

The post The MySQL GUI Features Every Professional DBA Needs in 2026 appeared first on Webyog.

MariaDB GTID Info & Flashback Plugin

2026-07-23T05:49:16+00:00

Reversing Transactions Directly from the Binary Log Some ideas never completely disappear. They remain somewhere in your brain, waiting for the right opportunity—or the right API—to come back. For me, recovering rows from the binary log is one of those ideas. More than ten years ago, I started experimenting with a simple question: If row-based […]

What's new in Postgres 19

2026-07-23T00:00:00+00:00

`VACUUM` reclaims dead-tuple space but doesn't shrink a table. PostgreSQL 19 Beta 2 adds an in-core online rewrite with REPACK (CONCURRENTLY), and much more.

A first look at MySQL 26.7 Early Access

2026-07-23T00:00:00+00:00

MySQL has dropped its newest release , categorized as “Early Access” and available at labs.mysql.com/ . While this post is not going to go into depth, I wanted to at least validate the management changes you verify between normal MySQL upgrades.

Why Agent Memory Needs a Database That Can Write Back

2026-07-22T20:08:21+00:00

I’ve spent the last year helping enterprise teams put AI agents into real workflows: Fraud detection, infrastructure monitoring, customer intelligence. The conversations follow a predictable pattern. The first question is always about the model. Which LLM? Which orchestrator? The second question, about six weeks after go-live, is always about the data. Why is the agent […]

The

Oracle’s July update fixes ten 10.0 vulnerabilities in Fusion Middleware

2026-07-22T18:18:03+00:00

Oracle’s July 2026 Critical Patch Update, its largest ever, contains 1,449 new security patches spanning 32 product families, from Oracle Database and E-Business Suite to PeopleSoft, GoldenGate, Java SE, and Fusion Middleware.

Fusion Middleware was particularly hard hit, with new security patches for 355 security vulnerabilities, 219 of them remotely exploitable

PostgreSQL Point-in-Time Recovery with Oops-Queries

2026-07-22T15:26:00+00:00

While working on the topic “PostgreSQL for Dolphins and Sea Lions,” I discovered that in the PostgreSQL universe, the topic of point-in-time recovery tends to be sidestepped when it comes to specific statements or transactions. And when examples are provided, they primarily focus on DDL statements rather than DML statements.

If you want to recover to some previous point in ti

How to Migrate from MySQL Galera Cluster to Percona XtraDB Cluster

2026-07-22T09:56:28+00:00

On December 1, 2025, MariaDB announced that MySQL Galera Cluster will reach end of life on September 30, 2026. After that date, the MySQL build of Galera stops receiving maintenance and binary releases, and all new clustering features land only in MariaDB Galera Cluster. MariaDB’s recommended path is an in-place migration onto their own server. … Continued

The post How to Migr

Deploying the MariaDB Privacy-First Stack Anywhere with Terraform

2026-07-22T09:07:49+00:00

In my previous post, I introduced the MariaDB Privacy-First Stack.
Nextcloud for collaboration, Passbolt for passwords and secrets, and MariaDB Server for the data. …

Continue reading \"Deploying the MariaDB Privacy-First Stack Anywhere with Terraform\"

Deploying the MariaDB Privacy-First Stack Anywhere with Terraform appeared first on MariaDB.org

"Why Didn't Our Database Fail Over?" - When NOT Failing Over Is the Right Answer

2026-07-22T08:20:30+00:00

Technical explanation of why a high availability cluster may intentionally avoid failover, exploring quorum, replication state, cluster decision-making, and the safeguards that protect data integrity during failures.

MySQL 9.7 Community Edition: Smarter Join Planning with the Hypergraph Optimizer

2026-07-22T06:00:00+00:00

With the release of MySQL 9.7 Community Edition, the Hypergraph Optimizer is now available to everyone. This is a significant addition to MySQL and one that has generated a lot of excitement in the MySQL community. The promise is simple: better execution plans for complex queries, especially those with many joins. Like most new features, […]

Where is the technology breakdown? Can AI help?

2026-07-22T00:00:00+00:00

On a major financial institution website I was asked to complete a contact form. This organization has millions of existing customers. This is not a startup, yet the quality of work is something a junior developer would fail at an interview if they provided the answer.

AI-powered incident analysis for Amazon RDS using automated forensic artifacts

2026-07-21T17:02:23+00:00

In this post, we demonstrate a serverless approach to continuous forensic artifact collection for Amazon RDS and Amazon Aurora databases. By capturing point-in-time snapshots of database internals on a cadence and storing them in Amazon S3, you create a time-series record that AI tools can analyze in seconds. This turns what was hours of manual investigation into an instant conversation.

OCI Cache and MySQL HeatWave: Better Together for High-Performance Applications

2026-07-21T12:14:36+00:00

Modern applications are expected to deliver instant responses while processing increasingly large volumes of data. Achieving this level of performance isn’t simply a matter of making the database faster.It requires placing the right workload on the right layer of the architecture. Some operations require ultra-fast repeated reads, others demand transactional consistency, while analytical q

From PostgreSQL 12 to MariaDB 11: A Gradual Fintech Migration with 23% Lower TCO

2026-07-21T09:13:23+00:00

Database migrations are rarely only about replacing one database server with another.
In real production systems, especially in fintech, a migration is usually about reducing risk, keeping the application online, improving scalability, and giving teams more room to evolve the architecture without freezing product development. …

Continue reading \"From PostgreSQL 12 to MariaDB 1

Commit Optimization for Large MySQL Transactions

2026-07-21T05:09:02+00:00

This article is also available in Chinese: 中文版. Browse all English articles. If you use and operate MySQL, you’ve surely run into a strange slow query like this: An INSERT that’s normally instant took 1.3s, and the slow-query log shows no long lock wait. Every statement in a multi-statement transaction had already finished, yet the COMMIT alone took 1.3s. When...

Binlog Transmission Optimization for Large MySQL Transactions

2026-07-21T04:42:07+00:00

This article is also available in Chinese: 中文版. Browse all English articles. Large transactions are a notorious problem in MySQL: they cause not only replication lag but also stability problems. A previous article, MySQL Large Transaction Commit Optimization, covered the problems a large transaction causes at commit time and the optimizations we made in AliSQL. This article looks at the...

Why My Mac Was Not Using Post-Quantum SSH With GitHub (And How I Fixed It)

2026-07-21T00:00:00+00:00

In my previous post I made the case that the only post-quantum protection that counts is the algorithm your connection actually negotiates. This post is what happened when I checked my own laptop.

ACID at Scale: Where ORMs and MySQL Disagree

2026-07-20T20:53:52+00:00

If you have ever watched an ORM-heavy application meet a sharded MySQL backend, you know the moment I mean. The code looks right. The tests pass. Then production traffic arrives, and you start seeing the impossible: An order without its line items, a user whose profile says one thing and whose billing record says another, […]

The post ACID at Scale: Where ORMs and MySQL Disagree app

MySQL on OKE: Database Operations as Kubernetes State

2026-07-20T14:26:46+00:00

MySQL is one of the databases developers trust most when an application needs a proven, familiar, open source relational engine. Kubernetes has become the orchestration layer teams rely on to run and scale modern workloads. Put them together, and the question gets interesting: how do you run MySQL with the same declarative, repeatable operating model […]

OurSQL Foundation Gives MySQL Community an Independent Voice

2026-07-20T14:00:24+00:00

♦A new nonprofit aims to strengthen MySQL's future by giving users and developers a stronger voice while Oracle retains ownership and development control. The post OurSQL Foundation Gives MySQL Community an Independent Voice appeared first on LinuxInsider.

Optimizing Replication Lag for Large Transactions and DDL in MySQL

2026-07-20T12:43:51+00:00

This article is also available in Chinese: 中文版. Browse all English articles. Since MySQL 5.6, the MySQL replication team has been working to reduce replication lag. The first step was schema-level parallel application of the binlog, but schema-level parallelism only helps when writes are spread across many databases; in the common case, where most write traffic hits a single database,...

MariaDB 13.1 Feature in Focus: Validate Your Configuration Before Starting the Server

2026-07-20T11:04:46+00:00

Have you ever modified a MariaDB configuration file, restarted the service, and immediately regretted it? You wanted to change: but accidentally wrote: One missing letter. That is enough to turn a perfectly healthy database server into a service that refuses to start. And of course, this kind of mistake never happens during a quiet maintenance […]

MariaDB 13.1 Feature in Focus: Validate Your Configuration Before Starting the Server

2026-07-20T10:54:10+00:00

Have you ever modified a MariaDB configuration file, restarted the service, and immediately regretted it?
You wanted to change:
but accidentally wrote:
One missing letter.
That is enough to turn a perfectly healthy database server into a service that refuses to start. …

Continue reading \"MariaDB 13.1 Feature in Focus: Validate Your Configuration Before Starting the

MariaDB Tips & Tricks: Where does my configuration variable value come from?

2026-07-20T09:46:52+00:00

As you may already know, there are many places where a MariaDB system variable can get its value. It can come from: And when several configuration files are involved, finding the effective source is not always obvious. Fortunately, MariaDB provides this information in INFORMATION_SCHEMA.SYSTEM_VARIABLES. Let’s check this in action with max_connections. Checking the current value […]

Using AI to modernize a Java project

2026-07-20T08:05:00+00:00

How I used AI coding agents to modernize a Java library.

Running Ito, a Runtime Analysis Code Review Tool, on Doltgres

2026-07-20T00:00:00+00:00

For the past six weeks, we've been running Ito, a runtime analysis code review tool that works off of GitHub PRs and builds and runs your application instead of just reading the diff. We've had success using this on our Doltgresql repo and in this blog post we'll show what it's caught, how it works, and where it's let us down.

Every UPDATE Leaves a Ghost: MVCC, Bloat, and VACUUM in PostgreSQL

2026-07-20T00:00:00+00:00

What happens to old row versions after nobody needs them? They become dead tuples, and over time they bloat your tables. Go deeper into PostgreSQL MVCC with runnable psql examples.

Q Day Is Coming: A Plain-English Guide to Post-Quantum Cryptography

2026-07-20T00:00:00+00:00

Every time you see the padlock in your browser, push code over SSH, or your application connects to a database, TLS or SSH is quietly doing two jobs. First, it proves you are talking to the real server and not an impostor.

From Tokyo to Seoul to Taipei: MySQL Community Conversations Across JAPAC

2026-07-17T17:08:56+00:00

Over the past year, we have taken important steps to increase transparency and engagement across the MySQL ecosystem. Through public roadmap discussions, Early Access releases, publication of worklogs, bug transparency and backlog reduction, community public discussions, increased use of GitHub discussions, and contributor events, we have created more opportunities for the community to understand w

From One Week to 22 Minutes: How Bolt Migrated MySQL to TiDB

2026-07-17T14:12:12+00:00

When a table crosses one terabyte, MySQL does not fail. It just starts charging for everything. A single index change takes over a week, blocks every other change queued behind it on the cluster, and demands a full shadow copy of the table just to run. At Bolt, whose ride-hailing, micromobility, delivery, and car rental […]

The post From One Week to 22 Minutes: How Bolt Migrated MyS

ClickHouse Schema Design and Data Modeling

2026-07-17T12:48:53+00:00

Sometimes, we see ClickHouse queries that should normally complete in milliseconds take several seconds to finish or worse, time out entirely. When that happens, there is a good chance that the schema is the real culprit. The problem is often not the query itself, nor is it a hardware bottleneck. Instead, it can stem from […]

The post ClickHouse Schema Design and Data Modeling appea

Perconians at WeAreDevelopers World Congress 2026: Agents Everywhere, Security Wake-Up Calls, and Buzzword Bingo

2026-07-17T11:00:00+00:00

On July 9–10, the two of us - Sandra (Engineering, Percona for MongoDB) and Radek (Product, Percona for MongoDB) - packed our backpacks and headed to Berlin for the WeAreDevelopers World Congress Europe 2026 (WAD). The 11th edition of the congress gathered 15,000 developers and 500+ speakers for two intense days, and we came back with full notebooks, fresh ideas, and one very clear message from the

A Native ADBC Driver for MariaDB

2026-07-17T05:57:20+00:00

Apache Arrow Database Connectivity (ADBC) provides a standard interface for exchanging data between applications and databases using Apache Arrow. You can think of it as an Arrow-oriented alternative to traditional database APIs such as ODBC and JDBC. The important difference is that ADBC is designed around columnar data. Query results are returned as streams of […]

Connect MySQL to Cursor with MCP (Step-by-Step)

2026-07-17T00:00:00+00:00

Connect Cursor to MySQL through a hosted MCP server. Create a restricted user, configure mcp.json, verify schema access, and test denied writes.

Best MySQL MCP Servers 2026: benborla29 & Alternatives

2026-07-17T00:00:00+00:00

Compare the benborla29 MySQL MCP server with Python, DBHub, and hosted alternatives by setup, credentials, permissions, and deployment model.

VillageSQL Extensions with versioning

2026-07-17T00:00:00+00:00

VillageSQL has just released it’s latest version 0.0.5 , describing this as stable release for installations with full MySQL 8.4.10 compatibility. With my primary work around extensions, specifically vsql-statistics , I took the new versioning features for a test.

Novita Artifact Hosting + TiDB: Deploying AI-Generated Apps With One SDK Call

2026-07-16T17:52:57+00:00

AI coding agents such as Cursor, Claude Code, and Devin can now produce a working application from a single prompt. However, most of this code still never reaches production. The blocker is rarely code quality. It is deployment. This blog explains how Novita Artifact Hosting turns an agent’s sandbox output into a live application, and […]

The post Novita Artifact Hosting + TiDB: Dep

Firefox add-on: lefred’s GroupKeep

2026-07-16T17:38:00+00:00

Firefox has had native Tab Groups (since version 141) to help organize your browsing… and I love this feature! However, what a disappointment when I realized that once Firefox closed, the groups were lost! But hey, this is open source, isn’t it? And Firefox easily supports extensions, so I am happy to announce lefred’s GroupKeep […]

When the Sea Lion teaches the Duck how to bark!

2026-07-16T12:45:13+00:00

You may have recently seen that MariaDB Server supports the DuckDB Storage Engine [1][2]. And that’s great. After my first look at it, Roman created those 3 MDEVs with my suggestions: And he started working on it! If we also check the roadmap, we can see that the DuckDB Engine will bring support for the […]

MySQL Major Version Upgrade Checklist – how to

2026-07-16T12:00:00+00:00

This article provides MySQL Major Version Upgrade Checklist along with video, one may follow to ease the upgarde task.

The post MySQL Major Version Upgrade Checklist – how to first appeared on Change Is Inevitable.

Introducing Mountaineers: A Way to Say Thank You

2026-07-16T11:00:00+00:00

You filed a bug report at 11pm because you’d already done the work to isolate it. You answered a forum question that had been sitting unanswered for three days. You wrote a PR. You spent an hour on a call telling us what’s broken about a tool you use every day. None of that is small, and none of it should go unnoticed.

No One Can Plan the Future of Infra: TiDB's AI Evolution Journey

2026-07-16T07:22:47+00:00

How customer demand pulled TiDB from database, to filesystem, to workspace, to unified storage for agents.

If you only look at the outcome, TiDB's product shape has been changing very quickly in the AI era.

It went from a database to a serverless database; from a database an agent can create and destroy on demand, to a filesystem, a cloud drive, and a coding workspace; and then,

When Your Database Grows a File System — The Story Behind TiDB Cloud's Filesystem Interface

2026-07-16T07:00:39+00:00

Why a database filesystem makes sense for AI workloads with massive unstructured data.

We recently shipped a Filesystem interface on TiDB Cloud and built a file service demo on top of it called drive9.

As a distributed OLTP database, many people's first reaction is probably: are you kidding? A filesystem interface on a database?

Honestly, we thought it was absurd too — unti

Missed the May 2026 MySQL Contributor Summit? Watch Every Session On Demand

2026-07-16T06:00:00+00:00

The inaugural MySQL Contributor Summit, held in May 2026, brought together Oracle engineers, customers, partners, and members of the open source community for a full day of technical collaboration focused on the future of MySQL. The Summit featured more than 20 sessions covering topics including AI integration, performance, observability, replication, developer experience, extensibility, and commun

Dolt in Four Flavors

2026-07-16T00:00:00+00:00

We now have the Dolt database that is right for you, whether that is classic Dolt, Doltgres, DoltLite, or Dumbo. Soon, all these databases will work with DoltHub, DoltLab, Hosted Dolt, and Dolt Workbench.

From SQLite to MariaDB: When Your Application Needs to Grow

2026-07-15T18:45:56+00:00

SQLite is fantastic. Really. For a developer starting a new project, it is difficult to find something easier: no server to install, no network configuration, no user management, no backup strategy to define on day one. You create a file, you open it from your application, and you are ready to store data. That is […]

Announcing VillageSQL Server 0.0.5

2026-07-15T18:15:49+00:00

Announcing VillageSQL Server 0.0.5: in-place extension upgrades, version pinning, variable-length custom types, and statement hooks.

Multi-Cluster Replication, FIPS Mode, and More with MariaDB Enterprise Kubernetes Operator 26.06

2026-07-15T17:13:46+00:00

What is the MariaDB Enterprise Kubernetes Operator? The MariaDB Enterprise Kubernetes Operator makes it easier to run and manage MariaDB […]

Amazon RDS and Aurora now support R8g and M8g database instances in additional AWS Regions

2026-07-15T17:00:00+00:00

AWS Graviton4-based R8g database instances are now generally available for Amazon Aurora (MySQL and PostgreSQL compatibility) and Amazon RDS for PostgreSQL, MySQL, and MariaDB in Asia Pacific (Hyderabad, Melbourne, Malaysia), Europe (London, Paris, Zurich), AWS GovCloud (US-East), South America (Sao Paulo), and Mexico (Central) regions. Additionally, M8g instances are now supported for Amazon RD

Database Index Optimizer

2026-07-15T14:55:00+00:00

Recently, a client asked me if the “time-consuming” task of checking indexes could be left to an index optimizer. Of course it can…

What exactly do we want to check?

Tables without a Primary Key
Duplicate indexes
Partially redundant indexes
Unused indexes

MariaDB, MySQL, and Percona Server Tables without a Primary Key

SQ



“The database is the product”: What breaks when memory devices scale
2026-07-15T12:00:00+00:00
♦Imagine you just finished a two-hour meeting. You were wearing a small AI work companion that promised to capture the
The post “The database is the product”: What breaks when memory devices scale appeared first on The New Stack.


GTID Mode on a Tungsten Replicator Target Node: What's Safe, What's Not, and How DDL Really Travels
2026-07-15T09:32:39+00:00
Technical guide to enabling GTID mode on a Tungsten Replicator target node, covering compatibility, replication internals, DDL propagation, and operational considerations for safe deployment.


Two-level hashing for improved scans in distributed databases
2026-07-15T06:40:03+00:00
In a distributed database using hash partitioning for the tables there is usually two options when you scan a table. Either you know the partition key and only scan a single partition, or you scan all partitions.

Assume you are scanning for hundreds of rows. It could be a table containing the files in a directory as an example, or it could be the events from a user. In both cases both va


Inside MySQL 9.7 LTS Features
2026-07-15T05:00:23+00:00
MySQL 9.7, a Long-Term Support (LTS) release, incorporates a variety of potential features spanning across multiple technical domains. This article covers some of the primary features introduced and evaluates their practical utility within the MySQL database environment. Following the End-of-Life (EOL) status of MySQL 8.0, this subsequent LTS release is designed to provide enhanced stability 


Time-travel for PostgreSQL: one SELECT vs a full restore vs replaying the WAL
2026-07-15T01:53:33+00:00
PostgreSQL now lets you ask what a row contained at any moment in the past, using a normal SELECT. This post shows the idea with one small example,…
The post Time-travel for PostgreSQL: one SELECT vs a full restore vs replaying the WAL appeared first on dbtrail.


Making 768 servers look like 1
2026-07-15T00:00:00+00:00
How to make 768 distinct Postgres servers look like 1 to your applications.


Open-source AI is just “4 months behind” closed frontier models — and 10x cheaper
2026-07-14T16:04:23+00:00
♦A quiet revolution is brewing in the AI model space. The dominance of proprietary closed frontier models has been cemented
The post Open-source AI is just “4 months behind” closed frontier models — and 10x cheaper appeared first on The New Stack.


TiDB Cloud Cross-Region PITR: Disaster Recovery Without a Second Production Stack
2026-07-14T15:19:34+00:00
For mission-critical TiDB Cloud Dedicated customers, high availability cannot stop at the region boundary. Single-region HA protects against node failures, availability-zone incidents, and localized infrastructure problems. When an entire cloud region becomes unavailable, customers need a verified recovery point in another region, a predictable restore path, and a cost model that does


Whitepaper: MariaDB, IBM Storage Virtualize, and VMware — Integrations, Implementation, and Best Practices
2026-07-14T10:28:49+00:00
MariaDB on VMware vSphere backed by IBM Storage Virtualize block storage has become the default operating model for enterprise database estates, and this whitepaper explains how to architect, implement, and operate it well. Running MariaDB [...]


MariaDB Hidden Gem: Online Schema Change without pt-osc
2026-07-14T09:12:48+00:00
When people hear “online schema change” in the MySQL and MariaDB world, many immediately think about pt-online-schema-change. And for good reasons: for years, changing a large table in production was one of those tasks that could ruin your day. Recently, I discovered that MariaDB includes a very useful hidden gem I completely missed: the ability […]


MariaDB Hidden Gem: Online Schema Change without pt-osc
2026-07-14T09:12:43+00:00
When people hear “online schema change” in the MySQL and MariaDB world, many immediately think about pt-online-schema-change. And for good reasons: for years, changing a large table in production was one of those tasks that could ruin your day. … 
Continue reading \"MariaDB Hidden Gem: Online Schema Change without pt-osc\"
The post MariaDB Hidden Gem: Online Schem


Instant Schema Changes in Airtable’s New Database
2026-07-13T17:44:42+00:00
In our last post, we explained why we rewrote Airtable’s in-memory database in Rust. This post is about a specific tradeoff that came with it: keeping schema changes fast.
Our legacy JavaScript database could add or remove a column without rewriting any existing rows, so schema changes were very quick. The new database’s row layout is more compact and faster to read, but that comes with a


Building and testing MySQL 8.0.46 / 8.4.9 / 9.7.0 under macOS
2026-07-13T14:38:53+00:00

Oracle MySQL 8.0.46, 8.4.9, and 9.7.0 are out (while I was drafting this, 8.4.10 and
9.7.1 came out too - based on them being security hotfixes and on source diff review
I assume they build and test the same), thus I did my usual testing of compiling
(Release, Debug, and Debug with ASan and UBSan) and running the testsuite under macOS
26.5.2 on Apple Silicon, with Xcode 26.6, and a range of Hom


Building and testing the MySQL 26.7.0 early access build on macOS
2026-07-13T14:38:44+00:00

Oracle released the MySQL 26.7.0 community early access build. I did my part in my
usual way (previously: 9.7.0 in the early access series; 8.0.46 / 8.4.9 / 9.7.0 in
the main series).


Build


As has been the rule for a while now, there is no need to use the bundled third-party
libraries, as the Homebrew versions work. The current Xcode (26.6) builds the 26.7.0
early access build fine i


MyDumper Locking Mechanisms Revisited: Introducing SAFE_NO_LOCK
2026-07-13T12:24:41+00:00
About a year ago, we discussed how MyDumper refactored its locking mechanisms to move away from old, rigid flags and transitioned towards more flexible, streamlined execution. Since then, the MyDumper community hasn’t stood still. In recent releases, the locking architecture was further standardized under a single overarching option: --sync-thread-lock-mode. Along with this modernization c


Dynamic Data Masking (DDM) with MySQL Enterprise Edition 9.7: Reduce your sensitive data exposure.
2026-07-13T11:48:33+00:00
With the new LTS (Long Term Support) release of MySQL 9.7.0 dev.mysql.com/doc/relnotes/mysql/9.7/en/ , Dynamic Data Masking (DDM) is one of the new features introduced as part of Enterprise Edition. The recent blog by Mike Frank, MySQL Product Management Director, details why DDM is important in every industry where PII (Personal Identifiable Information) data is stored […]


InnoDB Flushing is simple – explained
2026-07-13T05:15:00+00:00
As a junior once I asked a seasoned MySQL DBA (Abuelo) “How do you stay so calm in critical situations?”Abuelo DBA then uttered golden words: “Son, I keep my dirty…
The post InnoDB Flushing is simple – explained first appeared on Change Is Inevitable.


Dolt + TeamCity: Data Commits Now Trigger Builds
2026-07-13T00:00:00+00:00
A community plugin teaches TeamCity to treat a Dolt database as version control: data commits trigger builds, data tests, and binary packages.


When the Postgres query planner goes rogue
2026-07-13T00:00:00+00:00
How PlanetScale Database Traffic Control contained a runaway Postgres query after the planner abandoned an index.


How to Do UPDATE … LIMIT in PostgreSQL (With Standard SQL Alternatives)
2026-07-11T17:29:28+00:00
If you have ever migrated a workload from MySQL to PostgreSQL, you have probably hit a wall the first time you tried to run a statement like UPDATE mytable SET status = 'done' LIMIT 100;. [...]


HTAP Was Right. AI Agents Are Proving Why.
2026-07-10T19:15:05+00:00
When Databricks introduced LTAP (Lake Transactional and Analytical Processing) at this year’s Data + AI Summit, it sparked an important conversation about the future of enterprise data platforms. The announcement deserves attention because it recognizes a fundamental shift: modern AI applications can no longer treat transactional and analytical data as separate worlds. We agree. Where [


Running DuckDB as a MySQL 9.7 storage engine
2026-07-10T13:38:16+00:00
ducksdb-mysql-engine is an experimental build of MySQL 9.7 where a table you mark ENGINE=DuckDB answers analytical queries from DuckDB instead of InnoDB. Same server, same connection, no second copy of the data. On TPC-H at scale factor 10, InnoDB times out on 6 of the 22 queries and burns 1317 seconds on the 16 it … Continued
The post Running DuckDB as a MySQL 9.7 storage engine ap


MariaDB 13.1 Feature in Focus: BLOB, TEXT, JSON and GEOMETRY Support in the HEAP Engine
2026-07-10T04:29:32+00:00
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. … 
Continue reading \"MariaDB 13.1 Feature in Focus: BLOB, TEXT, JSON and GEOMETRY Support in the HEAP Engine\"
The po


Doltgres Reaches 99% Compliance on SQL Logic Tests
2026-07-10T00:00:00+00:00
Doltgres now passes 99% of our SQL Logic Test suite, hitting one of our key correctness targets for the Doltgres 1.0 launch on August 6th.


TiDB
2026-07-09T19:34:52+00:00
TiDB is an open source distributed SQL database featuring hybrid transactional and analytical processing (HTAP) capabilities in a single system. It is MySQL-compatible, horizontally scalable, and designed for applications requiring both real-time OLTP and...


An Easy Path from MySQL to MariaDB: Introducing MariaDB Migrator
2026-07-09T18:05:57+00:00
Migrating from MySQL to MariaDB is not considered to be an overly complex process.  After all, the two databases share […]


Why a five-minute sniff test is your secret supply chain defense
2026-07-09T16:00:00+00:00
♦In its updated 2025 guidance on SBOMs, the Cybersecurity and Infrastructure Security Agency (CISA) states, “An SBOM should include information
The post Why a five-minute sniff test is your secret supply chain defense appeared first on The New Stack.


MySQL 9.x: Moving Away From SHA1 and MD5
2026-07-09T13:20:51+00:00
TL;DR If you use MD5(), SHA1(), or SHA() in MySQL today, start planning the move to SHA2(). Beginning with MySQL 9.6, MD5(), SHA1(), and SHA() are no longer native built-in SQL functions in the server binary. They are available through the Legacy Hashing Component: That component should be treated as a stopgap solution. It gives […]