@AltertableAI

We're building an AI-driven, proactive, unified platform that redefines how modern companies leverage their data.

 Paris
altertable.ai/
Joined April 2025
  • Tweets27
  • Following207
  • Followers80
There is no single “winning” lakehouse table format in 2026. What has emerged instead is a more interesting split. altertable.ai/blog/2026-04-1…

Lakehouse table formats in 2026 | Altertable

There is no single “winning” lakehouse table format in 2026. What has emerged instead is a more interesting split.

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Unpopular opinion: your data warehouse is fine. Agents don't need a new one. They need context: definitions, permissions, what changed since yesterday. Keep it where it lives, or host it with us. Either way, add the context.
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Altertable retweeted
Sylvain
@sylv_1_Jun 16
Observability is key. But the data volume is brutal 🥵
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Most AI analytics products focus on query generation. The harder systems problem is context retrieval: before any LLM writes a single line of SQL. If that retrieval layer is fuzzy, the answer is wrong even when the SQL looks perfect. Altertable is built around that boundary.
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𝙾𝚁𝙳𝙴𝚁 𝙱𝚈 𝚝𝚜 𝙳𝙴𝚂𝙲 𝙻𝙸𝙼𝙸𝚃 𝙽 is one of the easiest ways to accidentally benchmark your storage engine instead of your product. If metadata can’t prune most files, “recent events” quietly becomes a full-table tax. That’s not a query problem. It’s a layout problem.
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There probably won’t be one winning lakehouse table format. #Iceberg, #Delta, #Hudi and #DuckLake make different bets on metadata layout, mutation semantics, and engine interoperability. But what are your boundary conditions at 10k files, realtime ingest, and mixed engines?
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AI's Event Backbone altertable.ai/blog/2026-03-1…

AI's Event Backbone | Altertable

AI-native products generate a new kind of infrastructure problem. Here's how to build the event backbone for your AI system.

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Working with @TheDesignCrew on our website was a blast ✨ Seb , Lucas & team took our super complex data infrastructure concepts and turned them into visuals people actually understand. So grateful and so proud of what we built 🙌 Check it out → altertable.ai
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From STDIO to OAuth altertable.ai/blog/2025-10-2…

From STDIO to OAuth | Altertable

How MCP evolved from local stdio to OAuth 2.0 for cloud-scale AI, using Dynamic Client Registration for secure agent access.

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Speed Shapes Understanding altertable.ai/blog/2025-10-0…

Speed Shapes Understanding | Altertable

Speed isn't just a luxury: it's the difference between insight and inertia. We've been deep in TPC-H benchmarks, tuning our analytical engine for AI agents.

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NetQuack 4000x Faster altertable.ai/blog/2025-09-3…

NetQuack 4000x Faster | Altertable

We rewrote NetQuack DuckDB extension, replacing regex with character parsing. Result: 4000x faster—37 seconds down to 0.012 seconds.

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Upstreaming with AI altertable.ai/blog/2025-09-2…

Upstreaming with AI | Altertable

How we contributed 17 upstream PRs in 90 days—where AI accelerated our workflow, what we learned, and practical tips for open source success with AI assistance.

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Altertable retweeted
Sylvain
@sylv_1_27 Sep 2025
Replying to @arthurlenoir @AltertableAI
Well, if we remove the gperf-generated code it’s not that much, and absolutely worth it! I committed the generated code so anyone can compile without having gperf on their machine. Including CI.
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Altertable retweeted
Sylvain
@sylv_1_26 Sep 2025
Just 3h today to push a 4000x optimization to an OSS project we use (github.com/hatamiarash7/duck…). I didn't do a single line of C++ since 10y. This would have taken me 3 weeks before the AI era. 😅 AI didn’t just speed me up, it changed how I think. At @AltertableAI we're not just building faster, we’re building differently 🤘 This is the new norm 🚀

Optimize URL parsing with ClickHouse-inspired architecture and gperf TLD lookup by redox · Pull...

Hello @hatamiarash7 , as you might have seen @utay and I started to be fairly active on https://github.com/hatamiarash7/duckdb-netquack as we use DuckDB more and more at Altertable. Knowing what Cl...

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Rethinking the Lakehouse altertable.ai/blog/2025-07-3…

Rethinking the Lakehouse | Altertable

Breaking down our storage and query architecture: why we're leaning into Apache Iceberg and why DuckDB is emerging as our real-time query engine of choice.

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Des anciens de Sorare et d’Algolia lancent une startup pour repenser le «data stack» des entreprises à l’aide de l’IA maddy.news/3FU65w9 - via @bymaddyness / @AltertableAI
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Trois anciens de @Sorare et @algolia lancent @AltertableAI 👀 Leur mission : aider les entreprises à exploiter pleinement le potentiel de leurs données grâce à l’IA. Levée de fonds réussie avec @20vcFund, @kimaventures et des business angels. La data en entreprise va se réinventer 👇 maddyness.com/2025/06/25/des…

Des anciens de Sorare et d’Algolia lancent une startup pour repenser le «data stack» des entrepri...

maddyness.com
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L'offensive de 20VC, le fonds de Harry Stebbings, dans la French Tech lesechos.fr/start-up/ecosyst…

L'offensive de 20VC, le fonds de Harry Stebbings, dans la French Tech

Le fonds britannique, qui compte trois investisseurs français dans ses rangs, a mené le tour de table de 2,5 millions d'euros d'Altertable.

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Altertable raises €2.5M Seed round to reinvent the enterprise data stack as a unified, AI-native platform. ⚡ linkedin.com/posts/sylvainut…

🚀 Big news: We’ve raised a €2.5M pre-seed round led by 20VC, joined by Drysdale Ventures, Kima...

🚀 Big news: We’ve raised a €2.5M pre-seed round led by 20VC, joined by Drysdale Ventures, Kima Ventures, and incredible angels from Datadog, Pigment, Algolia, Sorare, Front and Twilio Segment. Why...

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Altertable retweeted
Sylvain
@sylv_1_24 Jun 2025
📊 We’ve spent over a decade stitching together product analytics and BI: adding prettier charts, more tools... and longer pipelines 🤦 But the basics haven’t changed: · Most data sits idle 💤 · Most questions require context-hopping 🤸 · And dashboards rarely deliver decisions 🤔 We’re moving beyond dashboards: toward always-on data agents that spot trends, suggest actions, and keep you in control. Read more about our approach: altertable.ai/blog/2025-06-2…
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