Peter Boncz
@peterabcz
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Professor Analytical Data Systems @cwi_da and @VUamsterdam. researcher, systems architect, educator, entrepreneur
Amsterdam
Joined December 2009
DuckDB v1.4 introduced the much-requested feature of database encryption. In our new blog post, Lotte Felius (@ccfelius) and Hannes Mühleisen explain how the encryption works under the hood: https://t.co/tuynswKQpH
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LDBC has rebranded as the Graph Data Council to reflect our broad interest in graph data management technology. This still includes Linked Data and benchmarks but also extends to graph schema and standard query languages (GQL and SQL/PGQ).
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Prateek Gaur and co at @Snowflake reproduced the (great) results for the ALP encoding algorithm from @cwi_da / @afroozeh3 / @peterabcz. ALP achieves ZSTD levels of compression and much faster decode. We are discussing adding it to @ApacheParquet: https://t.co/gxwF5QqtNO
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Laurens Kuiper from @duckdblabs presented @duckdb's new memory assignment policy to run multi-join pipelines out-of-core with gracious performance degradation when join hash tables increasingly do not fit in RAM A well-attended and delivered talk! paper: https://t.co/CTjpSy7YDz
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Tobias Schmidt (TUM) at @VLDBconf presented SQLStorm, which uses LLMs to generate a huge amount of large queries. SQLStorm now has 18K different complex queries and runs on a large real-world dataset (stackoverflow) paper: https://t.co/FHPslF1ZjN code: https://t.co/SRfOEyLNro
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Very honored to receive the @VLDBconf 2025 Test of Time Award for the Join Order Benchmark (JOB). Kudos to my very talented TUM co-authors, specifically Viktor Leis who was the driving force + gave a great award talk. paper: https://t.co/XKWd98fFqp JOB: https://t.co/bHM7MtkNZY
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Azim Afroozeh @afroozeh3 gave a great talk @VLDBconf 2025 in London on our new FastLanes file format. FastLanes compresses 1.4x better than Parquet/snappy and allows 40x faster reads on the PublicBI dataset! Paper: https://t.co/B3vIxB6RCs Code: https://t.co/25o9qBYgnR
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And.. Azim Afroozeh put a lot of effort in open-sourcing the ALP floating point compressor ( https://t.co/gw0qhFeDSN). Leonardo Kuffo had written with him the SIGMOD2024 paper which now won a reproducibility award! + 🙏🙏 to the reproducibility committee - this is a ton of work
But @cwi_da has no reason to complain, here in Berlin. Leonardo Kuffo at the preceding DaMoN2025 workshop won the Best Paper Award for a study that showed that for vector databases, it matters a lot which AWS CPU you pick. Congratulations to him!
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But @cwi_da has no reason to complain, here in Berlin. Leonardo Kuffo at the preceding DaMoN2025 workshop won the Best Paper Award for a study that showed that for vector databases, it matters a lot which AWS CPU you pick. Congratulations to him!
SIGMOD2025 for the 1st time used a schedule where most papers are presented as posters only Tips for next time - gather user interest data prior to deciding poster/paper & room assignment - present posters in a (high ceiling) room with good acoustics & allot enough space + time
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SIGMOD2025 for the 1st time used a schedule where most papers are presented as posters only Tips for next time - gather user interest data prior to deciding poster/paper & room assignment - present posters in a (high ceiling) room with good acoustics & allot enough space + time
SIGMOD Opening was fully packed. Joe Hellerstein and Azza Abouzied welcomed the audience. Christos H. Papadimitriou gave an inspiring talk on "How to Build a Brain". Followed by honoring Carlo Zaniolo with the Codd Innovation Award. Fotos: HPI Fotoklub/Raphael Kunert
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The opening talk of #systemsdistributed, organized by our friends @TigerBeetleDB in the @EYE_film museum in Amsterdam, was given by Hannes Mühleisen of @duckdblabs about: DuckLake ( https://t.co/2BP6hVz3It) and this was very well received movie poster refers back to CIDR2025 😄
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DuckLake: leverage DB tech for Data Lake metadata. works on @duckdb, postgres, MySQL & SQLite provides: - multi-statement & multi-table transactions - SQL views - delta queries - encryption - low latency: no S3 metadata & inlining: store small inserts in-catalog and more!
Today we're launching DuckLake, an integrated data lake and catalog format powered by SQL. DuckLake unlocks next-generation data warehousing where compute is local, consistency central, and storage scales till infinity. DuckLake is an open standard and we've implemented it in
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PDX: A Data Layout for Vector Similarity Search Introduces a vertical data layout for vectors that accelerates similarity search through dimension-by-dimension processing, outperforming SIMD-optimized kernels. 📝 https://t.co/bDHFcg4oDn 👨🏽💻 https://t.co/9ZBcQDN2aG
github.com
⚡ Faster similarity search with PDX: A vertical data layout for vectors - cwida/PDX
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We strive to ensure that the DuckDB project stays open-source in the long term. That's why we set up the DuckDB Foundation, an Amsterdam-based non-profit organization, in 2021. The Foundation owns the intellectual property of the DuckDB project and enshrines the availability of
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It's becoming harder to stomach typing *tweets* into this still lively platform, with the behavior of its new owner in full view everyday. Truly pray for US democracy to endure, and our transatlantic bonds to persist as they enable civilization as we know it.
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Welcome @evers_vanessa as new CWI director! Excited my institute will be able to draw on your expertise in integrating AI & tech in social interactions. More than ever, it is important we advance technology in ways it positively contributes to societies. https://t.co/XmW8xcnVka
cwi.nl
The Board of NWO-I, the institute organization of NWO, appointed Prof. Vanessa Evers as Director of CWI, the national research institute for mathematics and computer science in the Netherlands.
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DaMoN - The 21st International Workshop on Data Management on New Hardware will be co-located with SIGMOD/PODS 2025. The submission deadline is March 14th, 2025. Checkout the website for further instructions. https://t.co/L7weL9zmHD
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CIDR2025 is a wrap. Loved the talks & audience questions, Gong Show, @duckdb reception.. @TheOfficialACM pres Yannis Ioannidis talked on open science. Proceedings are in ACM DL & VLDB (see https://t.co/b6yKEGhHiU). 🙏 all in+outside @cwi_da who helped organize!!
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In five days the CIDR2025 conference ( https://t.co/b6yKEGif8s) will start, and we are expecting around 170 attendees from all over the world. On an completely unrelated note, the exotic "goldeneye" duck was just spotted in The Netherlands! See: https://t.co/828H32cEGF
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