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Tudor Golubenco

@tudor.golubenco.org

171 followers 219 following 78 posts

CTO at Xata.io, a Postgres hosting platform. We're maintaining several Postgres-related open source tools: pgroll, pgstream, xata agent

Posts Replies Media

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 30/06/2026

Xata is now on Google Cloud. Spin up an isolated Postgres branch from your production data in 3 seconds, in-region in us-central1 (Iowa). Every coding agent, PR, and CI run gets its own production-like database. No shared staging, no migration.

Tudor Golubenco @tudor.golubenco.org · 25/06/2026

Very proud that we are be able to sponsor pgBackRest and therefore help with the continuing maintenance of the project. It's rock solid and fast, the properties you want from the backup solution. It's the safety net we offer to all @xata.io customers.

Very proud that we are be able to sponsor pgBackRest, and therefore help with the continuing maintenance of the project. It's rock solid and fast, the properties you want from the backup solution...

Very proud that we are be able to sponsor pgBackRest, and therefore help with the continuing maintenance of the project. It's rock solid and fast, the properties you want from the backup solution. It...

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 25/06/2026

We run 100% vanilla Postgres. No fork, no modifications. A deliberate decision from day one to build a platform around Postgres, with branching at the storage layer instead of inside the database. This means the whole Postgres ecosystem just works with Xata.

Tudor Golubenco @tudor.golubenco.org · 22/06/2026

Each branch is a full Postgres compute instance, with copy-on-write at the storage layer. So you get instant branching with all the data.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 18/06/2026

Branching gives every engineer and every agent their own Postgres. Now every branch has its own logs. Read, filter, and search them in the console, or match a pattern in one click. Same logs in your terminal with xata branch logs.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 11/06/2026

Introducing the latest in Postgres for agentic workloads. Agents can now branch or wake your Postgres database instantly.

Tudor Golubenco @tudor.golubenco.org · 19/05/2026

We’ll make it available on @xata.io soon, and I hope other Postgres services are going to offer it as well. I think a pure open source time-series extension is something the Postgres ecosystem really needs.

Tudor Golubenco @tudor.golubenco.org · 19/05/2026

It’s still slower than analytics-focused DBs like clickhouse or duckdb, but actually not that far behind. Consider getting that kind of performance without ever having to take the data out of Postgres.

Tudor Golubenco @tudor.golubenco.org · 19/05/2026

It’s very early days, but the benchmarks already look really good. On ClickBench, it’s significantly faster than Timescale on almost all queries. The combined score is 4.7 times better.

Tudor Golubenco @tudor.golubenco.org · 19/05/2026

There’s something I’ve been feverishly working on, and I just turned the repo public: pg_deltax, a fast time-series extension for PostgreSQL. Basically an Apache-licensed Timescale alternative. Please give it a star: github.com/xataio/deltax

ClickHouse: x1.15
pg_deltax: x2.19
TimescaleDB: x10.04

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 07/05/2026

Every Xata Postgres branch now has a managed PgBouncer endpoint, in the same memory envelope as the database. Auto-tuned to 0.9 of max_connections. 10,000 client connections per branch. Hibernates with the branch. Append `-pooler` to your branch ID. Writeup: xata.io/blog/a-conne...

Postgres connection pooling per branch | Xata by Noémi Ványi

Every Xata Postgres branch includes a built-in PgBouncer pooler in transaction mode. Tuned for serverless and edge, scales to zero with the branch.

Tudor Golubenco @tudor.golubenco.org · 01/05/2026

Thanks, and I agree with age != maturity. Btw, we did have a good deal of issues with SPDK and is the reason we are moving away from it (not sure if the blog post is clear enough on that). The rest has been kind with us so far.

Tudor Golubenco @tudor.golubenco.org · 01/05/2026

Not sure I'd call ZFS and NVMe-oF fringe tech, but I get what you mean :) . Our user-space implementation of NVMe-oF is new, but well tested and hardened. Besides that everything else is mature tech. Overall it's actually a significant simplification of our platform, which is what I like the most.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 30/04/2026

We rebuilt the storage engine behind Xata Cloud. Today we're talking about why: xata.io/blog/xatasto...

Xatastor: ZFS + NVMe-oF for millions of Postgres instances by Tudor Golubenco

Read the technical details of our new distributed storage system, which is the key to scaling to a huge number of Postgres instances.

Tudor Golubenco @tudor.golubenco.org · 30/04/2026

I’ve written a blog post on why and how we built our own distributed storage engine. We’re calling it Xatastor and enables us to scale to a huge number of Postgres instances and branches. It’s based on ZFS and NVMe-oF as key technologies. xata.io/blog/xatasto...

Xatastor: ZFS + NVMe-oF for millions of Postgres instances by Tudor Golubenco

Read the technical details of our new distributed storage system, which is the key to scaling to a huge number of Postgres instances.

Tudor Golubenco @tudor.golubenco.org · 27/04/2026

Friends don't let friends let their agents access the prod db directly.

Tudor Golubenco @tudor.golubenco.org · 15/04/2026

Github (★s appreciated) github.com/xataio/xata

GitHub - xataio/xata: Open source, cloud native, Postgres platform with copy-on-write branching and scale-to-zero

Open source, cloud native, Postgres platform with copy-on-write branching and scale-to-zero - xataio/xata

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Tudor Golubenco @tudor.golubenco.org · 15/04/2026

Blog post with the technical walk-through: xata.io/blog/open-so...

Xata - open source Postgres platform with CoW branching by Tudor Golubenco

Xata core is now available as open source under the Apache 2 license. It adds copy-on-write branching, scale-to-zero compute to Postgres.

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Tudor Golubenco @tudor.golubenco.org · 15/04/2026

Also, the more agents do dev work for you, the more important scale-to-zero is, to keep infra costs low.

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Tudor Golubenco @tudor.golubenco.org · 15/04/2026

I’m obviously biased, but I think this is the ideal product for the coding agents era. Code is cheap now, but validating it with realistic data is not simple. Synthetic or seeded data is limited, copying the data with pg_dump takes ages.

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Tudor Golubenco @tudor.golubenco.org · 15/04/2026

Today we're open sourcing the Xata platform, a cloud-native Postgres platform. - Fast copy-on-write branching. - Automatic scale-to-zero. - 100% Vanilla Postgres. We run upstream Postgres, no modifications. - Production grade: HA, failover/switchover, upgrades, PITR, IP filtering, etc.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 15/04/2026

Xata is now open source. Apache 2.0. Postgres platform with Copy-on-write branching at the storage layer. Copy a TB-sized database in seconds. Inactive copies scale to zero automatically. 100% vanilla Postgres.

Reposted by Tudor Golubenco

Planet PostgreSQL @planet.postgresql.org · 15/04/2026

Tudor Golubenco: Introducing Xata OSS: Postgres platform with branching, now Apache 2.0 postgr.es/p/8C_ #postgresql

Tudor Golubenco @tudor.golubenco.org · 01/02/2026

And posts made by humans are called “fake”

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 12/01/2026

Batching is often used to process large volumes of data but a batch size that works in one network setup can perform poorly in another. We applied automatic batch size tuning to Postgres snapshots in pgstream to adapt across different network environments. Check the post 👇 xata.io/blog/postgre...

Optimizing data throughput for Postgres snapshots with batch size auto-tuning by Esther Minano Sanz

Why static batch size configuration breaks down in real world networks and how automatic batch size tuning improves snapshot throughput.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 11/12/2025

Postgres constraints are the rules that keep your data clean. Types tell you *what* can be stored but constraints enforce *what must be true*. If a row violates a rule, Postgres rejects it. No silent corruption. A few well-chosen constraints prevent entire classes of bugs. xata.io/blog/constra...

What you should know about constraints in PostgreSQL | xata.io by Gulcin Yildirim Jelinek

In this blog, we explore Postgres constraints through the pg_constraint catalog, covering table vs. column constraints, constraint triggers, domains and more.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 09/12/2025

We explored giving AI agents access to compute (via Sandbox) and database via Xata branches and some “commandments” to follow a developer-like workflow.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 08/12/2025

Can an AI Agent follow the same workflow that human developers can? We explored giving AI agent access to the database branch, a compute sandbox to execute code and instructions to follow a developer workflow (in plain English) and the experiment was a success.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 01/12/2025

Using Neovim with Claude Code? Xata engineer @richardgill.org shares a practical setup to: - See agent-written changes instantly - Reload git diffs in real time - Yank code with file locations so Claude gets proper context 📝 Tips for configuring Neovim for Claude Code xata.io/blog/configu...

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 31/10/2025

Club Xata Rome 2025: our biannual reset. We traded Zoom for a shared table and left with sharper plans + stronger bonds.

The Villa Getaway: Club Xata Rome 2025 by Natalia Woroniec

Somewhere between a team retreat and a family holiday, our week in Rome was about connection, ideas, and joy of being in one place together. A reminder of what can happen when the whole team shares…

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 25/09/2025

PostgreSQL 18 is here 🎉 🐘 • Async I/O (io_uring/worker), faster reads • More index hits (skip scan, OR) • uuidv7(), virtual generated cols • OAuth2; Ask for Xata access and try PostgreSQL 18.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 31/07/2025

The summer edition of the London Postgres Meetup is behind us! Thanks to the organisers for a great evening. Chris Ellis gave a sharp talk on UUIDs, and Andrew Farries introduced pgroll, our open-source tool for zero-downtime schema changes. Always a joy to talk Postgres over pints!

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 09/07/2025

🔗 "pgroll latest url" gives you a ready-to-use Postgres connection string for the newest schema version. Perfect for CD pipelines 🛠️ More: xata.io/blog/pgroll-... #pgroll #Postgres #DevOps

pgroll 0.14 - new commands and control over version schemas by Andrew Farries

pgroll 0.14 is released with several new subcommands and better control over how version schema are created.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 04/07/2025

🚀 pgroll v0.14 is out! New subcommands, more control over version schemas, and smoother upgrades for your pgroll versions. Read the release blog 👉 xata.io/blog/pgroll-... #Postgres #pgroll #SchemaMigrations #DevOps

pgroll 0.14 - new commands and control over version schemas by Andrew Farries

pgroll 0.14 is released with several new subcommands and better control over how version schema are created.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 25/06/2025

Part 2 of our Postgres branching series is live. This time we compare costs across 5 real-world scenarios 💰 • CI/CD previews • High availability • Multi-tenant SaaS • Model training • Ephemeral agent DBs See how Xata, Neon & Supabase compare 📊 xata.io/blog/neon-vs...

PostgreSQL Branching: Xata vs. Neon vs. Supabase - Part 2 by Alex Francoeur

Take a closer look at PostgreSQL branching by comparing Xata, Neon, and Supabase on architecture, features, and real-world costs.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 20/06/2025

🚀 pgstream v0.7.1 is here! ✨ JSON transformers to transform json/jsonb data with set and delete operations 📊 Snapshot progress tracking ⚡ Wildcard support for snapshots Check the blogpost here → xata.io/blog/pgstrea... Let us know what you think, your feedback & contributions are appreciated!

pgstream v0.7.1: JSON transform, snapshot progress, wildcard by Ahmet Gedemenli

Learn how pgstream v0.7.1 transforms JSON data, improves snapshot experience with progress tracking and wildcard support.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 09/06/2025

Part 1 of our two-post series breaks down how Xata, Neon, and Supabase each implement PostgreSQL branching. In this first post, we cover features, internals, and trade-offs between the different solutions ⚔️ xata.io/blog/neon-vs...

PostgreSQL Branching: Xata vs. Neon vs. Supabase - Part 1 by Alex Francoeur

Take a closer look at PostgreSQL branching by comparing Xata, Neon, and Supabase on architecture, features, and real-world costs.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 29/05/2025

🐘 pgstream v0.6, our open-source Postgres CDC tool, now available 🚀 Custom template transformers 📝, built-in observability to quickly identify bottlenecks 🔭 and snapshot performance improvements 🏎️ Read more:

pgstream v0.6.0: Template transformers, observability, and performance improvements by Ahmet Gedemenli

Learn how pgstream v0.6 simplifies complex data transformations with custom templates, enhances observability and improves snapshot performance.

Tudor Golubenco @tudor.golubenco.org · 24/05/2025

Thanks for posting, made my day 😀

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 22/05/2025

Just released: Xata Agent v0.3.1 🧠 Now with: 🔧 Custom MCP tools & servers 🤖 Local LLMs via Ollama ✅ Support for reasoning models (O1 & O4-mini) 🎨 A refined UI to manage tools and servers Learn more → xata.io/blog/xata-ag... Try it out → github.com/xataio/xata-...

Xata Agent 0.3.1: Custom MCP servers, Ollama integration, reasoning models by Gulcin Yildirim Jelinek

Version 0.3.1 of the open-source Xata Agent adds support for custom MCP servers and tools, introduces Ollama as a local LLM provider, and includes support for reasoning models O1 and O4-mini.

Tudor Golubenco @tudor.golubenco.org · 22/05/2025

I'll be at the Berlin AI meetup tonight, speaking about our @xata.io Agent. Looking forward to it! lu.ma/2025-may-ber...

May Berlin AI Meetup · Luma

Come join us for an evening of inspiring presentations, workshops, and code in and around all things AI! If you’ve got questions or ideas to share, feel free…

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 21/05/2025

From OpenAPI to a working MCP server: see how Xata built real-time AI tooling using Kubb and @vercel.com's @nextjs.org js.org adapter. Practical breakdown: codegen, tool gen, and deployment. Check it out:👇 xata.io/blog/built-x...

From OpenAPI spec to MCP: how we built Xata's MCP server by Alexis Rico

Learn how we built an OpenAPI-driven MCP server using Kubb, custom code generators, and Vercel’s Next.js MCP adapter.

Reposted by Tudor Golubenco

Hacker News Top 100 Bot (Unofficial) @hn100.bsky.social · 17/05/2025

Xata: Postgres at scale, with copy-on-write branching and anonymization Discussion

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 14/05/2025

📣 We have a brand new Postgres platform with: Instant Copy-on-Write branching Built-in data anonymization Separation of storage and compute 100% vanilla Postgres It’s for staging/dev environments as well as for production workloads. Blog post: xata.io/blog/xata-po... And more details in 🧵

Xata: Postgres with data branching and PII anonymization | xata

Relaunching Xata as "Postgres at scale". A Postgres platform with Copy-on-Write branching, data masking, and separation of storage from compute.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 09/05/2025

🛠️ pgroll v0.12.0 just dropped! New in this release: • Interactive create command • --verbose mode for migration clarity • Add primary keys with create_constraint • migrate is now idempotent for safer CI • YAML is default for pull 🦋 Read the blog:

pgroll 0.12.0 update

pgroll v0.12 includes usability improvements like verbose mode and idempotent migrate command.

Tudor Golubenco @tudor.golubenco.org · 16/04/2025

Packed release of the Xata Agent!

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 16/04/2025

🚀 Xata Agent v0.2.0 launched! Level-up your PostgreSQL monitoring & troubleshooting with: 📖 Custom Playbooks (create, fork & adapt) 💬 Enhanced Chat with persistence & artifacts 🌩️ Native support for GCP CloudSQL instances 🤖 Gemini & GPT 4.1 models integration Learn more → xata.io/blog/postgre...

Xata Agent v0.2.0: Powered-up chat, custom playbooks, GCP support & more

Version 0.2.0 introduces a redesigned chat interface, customizable playbooks, support for monitoring PostgreSQL instances on Google Cloud Platform and various improvements across the board.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 08/04/2025

🔥 New pgroll release! v0.11 brings: 🔌 YAML support for migrations 🕓 Timestamps now with timezone info 📛 `name` field is now optional 🎻 Tables without primary key or unique column can be backfilled 🧹 Better errors Zero-downtime Postgres migrations, now smoother. 📖 Blog: pgroll.com/blog/pgroll-...

pgroll 0.11.0 update: YAML migration, drop name requirement | pgroll

We've just released v0.10 of pgroll, our open-source schema migration tool for Postgres. It includes support for YAML migration files.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 04/04/2025

pgstream is an open-source CDC tool for #Postgres, and the new v0.4 release now adds Postgres-to-Postgres replication, snapshots, and data transformations. Handle schema changes seamlessly & anonymize sensitive data easily. Demo and tutorial details👇

pgstream v0.4.0: Postgres-to-Postgres replication, snapshots & transformations

Learn how the latest features in pgstream refine Postgres replication with near real-time data capture, consistent snapshots, and column-level transformations.

Reposted by Tudor Golubenco

Xata - Postgres at Scale @xata.io · 03/04/2025

Built an LLM-based app? How do you know it still works after tweaking prompts or switching models? Xata Engineer, @richardgill.org built a TypeScript Eval for the open-source Xata Agent using the @vercel.com AI SDK + Vitest. Here's how he did it 👇 xata.io/blog/llm-eva...

Writing an LLM Eval with Vercel's AI SDK and Vitest

LLM Evals - testing for applications using LLMs