researcher, systems architect, educator, entrepreneur
PhD students also contributed:
- Laurens Kuiper: new k-way parallel mergesort duckdb.org/2025/09/24/sorting-again.html
- Lotte Felius @ccfelius.bsky.social: on-disk DB encryption
- Denis Hirn: materialized CTEs
PhD students also contributed:
- Laurens Kuiper: new k-way parallel mergesort duckdb.org/2025/09/24/sorting-again.html
- Lotte Felius @ccfelius.bsky.social: on-disk DB encryption
- Denis Hirn: materialized CTEs
A well-attended and -delivered talk!
paper: vldb.org/pvldb/vol18/p2748-kuiper.pdf
A well-attended and -delivered talk!
paper: vldb.org/pvldb/vol18/p2748-kuiper.pdf
SQLStorm now has 18K different complex queries and runs on a large real-world dataset (stackoverflow)
paper: vldb.org/pvldb/vol18/...
code: github.com/SQL-Storm/SQ...
SQLStorm now has 18K different complex queries and runs on a large real-world dataset (stackoverflow)
paper: vldb.org/pvldb/vol18/...
code: github.com/SQL-Storm/SQ...
Kudos to my very talented TUM co-authors, specifically Viktor Leis who was the driving force & gave a great award talk.
paper: www.vldb.org/pvldb/vol18/p5531-viktor.pdf
JOB: event.cwi.nl/da/job
Kudos to my very talented TUM co-authors, specifically Viktor Leis who was the driving force & gave a great award talk.
paper: www.vldb.org/pvldb/vol18/p5531-viktor.pdf
JOB: event.cwi.nl/da/job
FastLanes compresses 1.4x better than Parquet/snappy and allows 40x faster reads on the PublicBI dataset!
Paper: vldb.org/pvldb/vol18/p4629-afroozeh.pdf
Code: github.com/cwida/FastLanes
FastLanes compresses 1.4x better than Parquet/snappy and allows 40x faster reads on the PublicBI dataset!
Paper: vldb.org/pvldb/vol18/p4629-afroozeh.pdf
Code: github.com/cwida/FastLanes
Next stop is @vldb.bsky.social London to present
- github.com/cwida/FastLanes v0.1 of a new big data format
- spilling multi-operator joins (via @duckdb.org)
- the SQLStorm benchmark of 30k LLM-generated complex queries (via TUM)
Next stop is @vldb.bsky.social London to present
- github.com/cwida/FastLanes v0.1 of a new big data format
- spilling multi-operator joins (via @duckdb.org)
- the SQLStorm benchmark of 30k LLM-generated complex queries (via TUM)
PDX is a vertical layout that can accelerate vector search in principle in any vector index technique (it makes the distance calculation faster, using better SIMD + pruning).
ir.cwi.nl/pub/35044/3504…
github.com/cwida/PDX
PDX is a vertical layout that can accelerate vector search in principle in any vector index technique (it makes the distance calculation faster, using better SIMD + pruning).
ir.cwi.nl/pub/35044/3504…
github.com/cwida/PDX
+ 🙏🙏 to the reproducibility and artifacts committee - this is a ton of work.
+ 🙏🙏 to the reproducibility and artifacts committee - this is a ton of work.
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!
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!
Tips for next time:
- gather user interest data prior to deciding poster-or-paper & room assignment.
- present posters in a (high ceiling) room with good acoustics & allot enough presentation space + time.
photos: HPI Fotoklub/Raphael Kunert
Tips for next time:
- gather user interest data prior to deciding poster-or-paper & room assignment.
- present posters in a (high ceiling) room with good acoustics & allot enough presentation space + time.
📆 June 17 (Tuesday), 8:00 PDT / 17:00 CEST
✍️ Register at lu.ma/mt9f8xh1?tk=...
@duckdb.org about:
DuckLake (ducklake.select)
and this was very well received
movie poster refers back to CIDR2025 😄
@duckdb.org about:
DuckLake (ducklake.select)
and this was very well received
movie poster refers back to CIDR2025 😄
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!
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!
duckdb -ui
Learn more:
duckdb.org/2025/03/12/d...
duckdb -ui
Learn more:
duckdb.org/2025/03/12/d...
Excited we will be able to draw on her expertise in integrating AI&tech in social interactions.
More than ever, it is important technology is advanced in ways it positively contributes to society.
www.cwi.nl/en/news/vanessa-evers-appointed-new-director-of-cwi
Excited we will be able to draw on her expertise in integrating AI&tech in social interactions.
More than ever, it is important technology is advanced in ways it positively contributes to society.
www.cwi.nl/en/news/vanessa-evers-appointed-new-director-of-cwi
Lived the many interesting papers & discussions, Gong Show, @duckdb reception..
ACM president Yannis Ioannidis gave an inspiring talk on open science.
Proceedings are in ACM DL & VLDB (see cidrdb.org).
🙏 all in+outside @cwi-amsterdam.bsky.social who helped organize!!
Lived the many interesting papers & discussions, Gong Show, @duckdb reception..
ACM president Yannis Ioannidis gave an inspiring talk on open science.
Proceedings are in ACM DL & VLDB (see cidrdb.org).
🙏 all in+outside @cwi-amsterdam.bsky.social who helped organize!!
On an unrelated note, the exotic "goldeneye" duck was just spotted in The Netherlands!
See: bit.ly/duck-goldeneye
On an unrelated note, the exotic "goldeneye" duck was just spotted in The Netherlands!
See: bit.ly/duck-goldeneye
👉 www.youtube.com/watch?v=Fzci...
Catch me at @fosdem.bsky.social on Feb 1 in the Data Analytics room, where I’ll continue spreading the word about #DuckPGQ and #SQL/#PGQ. Hope to see you there! 🚀 #FOSDEM2025
👉 www.youtube.com/watch?v=Fzci...
Catch me at @fosdem.bsky.social on Feb 1 in the Data Analytics room, where I’ll continue spreading the word about #DuckPGQ and #SQL/#PGQ. Hope to see you there! 🚀 #FOSDEM2025
A well-deserved award, recognizing the innovations in @duckdb.org - the most successful open-source DB system to come from @cwi-amsterdam.bsky.social
Let me also honor his 1st PhD student, Mark Raasveldt (DuckDB Labs CTO), instrumental in shaping the project.
A well-deserved award, recognizing the innovations in @duckdb.org - the most successful open-source DB system to come from @cwi-amsterdam.bsky.social
Let me also honor his 1st PhD student, Mark Raasveldt (DuckDB Labs CTO), instrumental in shaping the project.
Andy will again be in Amsterdam for CIDR2025 (Jan 19-22) & there are 4 days to register for it: cidrdb.org/cidr2025/registration.html
Andy will again be in Amsterdam for CIDR2025 (Jan 19-22) & there are 4 days to register for it: cidrdb.org/cidr2025/registration.html
Check its exciting program: www.cidrdb.org/cidr2025/pro...
It will be held January 19-22 in the Amsterdam Mövenpick hotel.
Plan your trip quickly, because registration closes on Thursday!
Check its exciting program: www.cidrdb.org/cidr2025/pro...
It will be held January 19-22 in the Amsterdam Mövenpick hotel.
Plan your trip quickly, because registration closes on Thursday!
A huge thanks to the community for supporting DuckPGQ for graph analytics. Stay tuned—the next update will bring property graph creation over attached databases!
Explore DuckPGQ here: duckdb.org/community_ex...
A huge thanks to the community for supporting DuckPGQ for graph analytics. Stay tuned—the next update will bring property graph creation over attached databases!
Explore DuckPGQ here: duckdb.org/community_ex...
I’ll share how #DuckDB unlocks graph analytics with SQL/PGQ from the SQL:2023 standard using the #DuckPGQ extension.
📍 Free to attend & livestreamed on YouTube!
📅 Details + register: duckdb.org/events/2025/...
🚀 Hope to see you there!
I’ll share how #DuckDB unlocks graph analytics with SQL/PGQ from the SQL:2023 standard using the #DuckPGQ extension.
📍 Free to attend & livestreamed on YouTube!
📅 Details + register: duckdb.org/events/2025/...
🚀 Hope to see you there!