Lightnews — Scholar-powered news

Haralampos Gavriilidis @harrygav.bsky.social · Aug 26

VLDB'25 Demo Paper: www.user.tu-berlin.de/harry_g/asse...

AIDB@VLDB'25 Paper: www.vldb.org/2025/Worksho...

CDMS@VLDB'25 Extended Abstract: www.vldb.org/2025/Worksho...

SIGMOD'25 Paper: dl.acm.org/doi/10.1145/...

Project Website: www.polydbms.org

2

Haralampos Gavriilidis @harrygav.bsky.social · Aug 26

All work was done at @bifold.berlin / @tuberlin.bsky.social
and partially supported by @softwarecampus.bsky.social.

1 2

Haralampos Gavriilidis @harrygav.bsky.social · Aug 26

Based on the PolyDB Project, together with my collaborators Leonhard Rose, Joel Ziegler, Jonathan Gerloff, Benedikt Didrich, Midhun Kaippillil Venugopalan, Kaustubh Beedkar, @matthiasboehm7.bsky.social, and Volker Markl.

1 1

Haralampos Gavriilidis @harrygav.bsky.social · Aug 26

👉 At the #CDMS Workshop I will give a lightning talk on interoperability and composability in #federated #DataSystems, showing how XDB (our work from #ICDE2023) enables federated query processing and XDBC enables efficient cross-system #DataTransfer.

1 1

Haralampos Gavriilidis @harrygav.bsky.social · Aug 26

👉 At the #AIDB Workshop Bene will present our work on ADAPT, a data-driven optimizer that automatically tunes transfer parameters to changing environments. With Benedikt Didrich, Vasilis Gkolemis, @matthiasboehm7.bsky.social, and Volker Markl.

1 1

Haralampos Gavriilidis @harrygav.bsky.social · Aug 26

Step into the cockpit, set the parameters, and win prizes while shielding Earth from meteor strikes. With Joel Ziegler, Midhun Kaippillil Venugopalan, Benedikt Didrich, @matthiasboehm7.bsky.social, and Volker Markl. Thanks to Stefanie Lenk for the awesome graphics!

1 1

Haralampos Gavriilidis @harrygav.bsky.social · Aug 26

🚀What do data transfer and space missions have in common?

A lot of parameters you need to tune in complex environments!
👉At #VLDB2025 we will showcase Enter the Warp, an interactive game that turns data transfer into a space mission using XDBC, our work presented at #SIGMOD2025

1 1 4

Haralampos Gavriilidis @harrygav.bsky.social · Jun 20

🎧 Sounds interesting? Lets chat next week at @sigmod2025.bsky.social

Paper: dl.acm.org/doi/10.1145/...
Podcast: disseminatepodcast.podcastpage.io/episode/hara...
Project website: www.polydbms.org

1

Haralampos Gavriilidis @harrygav.bsky.social · Jun 20

Work done in collaboration with Kaustubh Beedkar, @matthiasboehm7.bsky.social , and Volker Markl at @bifold.berlin and Technische Universität Berlin, and supported by @softwarecampus.bsky.social.

1 1 3

Haralampos Gavriilidis @harrygav.bsky.social · Jun 20

We argue that existing data transfer tools fall short in today's diverse environments. We introduce XDBC, a framework for fast and scalable data transfer across heterogeneous systems and infrastructures, whether you're working with #PostgreSQL, #Pandas, #ApacheSpark, or anything in between.

1 2

Haralampos Gavriilidis @harrygav.bsky.social · Jun 20

🚀 📄 Paper and Podcast Drop! 🎙️
Our #SIGMOD2025 paper on #data #transfer was just published on ACM.
Bored to read? The podcast with Jack Waudby on The Disseminate podcast is out too.

1 2

Haralampos Gavriilidis @harrygav.bsky.social · May 11

Paper: ieeexplore.ieee.org/document/101...
Demo: www.vldb.org/pvldb/vol16/...
Project website: www.polydbms.org

Haralampos Gavriilidis @harrygav.bsky.social · May 11

The XDB research project is a collaboration with Leonhard Rose, Joel Ziegler, Jonathan Gerloff, Benedikt Didrich, Kaustubh Beedkar, and Volker Markl at @bifold.berlin & @tuberlin.bsky.social and supported by @softwarecampus.bsky.social!

1 2

Haralampos Gavriilidis @harrygav.bsky.social · May 11

It was great to get feedback, connect with people from industry, and talk all things #PostgreSQL. #PGConf is such a vibrant community: Thanks to everyone for the engaging discussions!

1 1

Haralampos Gavriilidis @harrygav.bsky.social · May 11

🐘Really enjoyed presenting part of my PhD work (at @bifold.berlin/@tuberlin.bsky.social) on XDB for #decentralized query processing in #federated #databases at @pgconfde.bsky.social!

pgconfde.bsky.social @pgconfde.bsky.social · May 9

Haralampos Gavriilidis speaks about Decentralized Query Processing Across PostgreSQL Instances at pgconf.de 2025

1 1 2

Reposted by Haralampos Gavriilidis

BIFOLD Berlin Institute for the Foundations of Learning and Data @bifold.berlin · Apr 30

Thank you to Stefan Halfpap, Haralampos Gavriilidis, Lukas Pirch, and Stephanie Brandl for their excellent tutorials this afternoon at #BIFOLDDay2025.
We look forward to the Spring Reception starting at 4 PM!

@lpirch.bsky.social @stephaniebrandl.bsky.social @harrygav.bsky.social

1 3 8

Haralampos Gavriilidis @harrygav.bsky.social · Apr 18

Paper: www.sciencedirect.com/science/arti...

DuckDB Extension: duckdb.org/community_ex...

Core Parser with links to R & Python bindings, and the PostgreSQL extension: github.com/polydbms/she...

Haralampos Gavriilidis @harrygav.bsky.social · Apr 18

Work done in collaboration with @elenitz.bsky.social and Volker Markl at the @tuberlin.bsky.social @bifold.berlin and supported by @softwarecampus.bsky.social

1 1 1

Haralampos Gavriilidis @harrygav.bsky.social · Apr 18

Kudos to Felix Henze for leading the core parser implementation, Jonas Benn for building the @duckdb.org extension, and Joel Ziegler for the #postgresql extension!

1

Haralampos Gavriilidis @harrygav.bsky.social · Apr 18

I recently joined Jack Waudby on the @disseminate as part of the "DuckDB in Research Podcast" series to talk about SheetReader and our DuckDB community extension.

1 1

Haralampos Gavriilidis @harrygav.bsky.social · Apr 18

Parsing #Excel #spreadsheets at lightning speed — that’s exactly what we built SheetReader for!

DuckDB @duckdb.org · Apr 18

📢 The fifth and final episode of the “DuckDB in Research” podcast series is out!

Haralampos Gavriilidis | SheetReader: Efficient spreadsheet parsing

🎧 Apple: podcasts.apple.com/us/podcast/h...

🎧 Spotify: open.spotify.com/episode/2CRR...

1 2 7

Haralampos Gavriilidis @harrygav.bsky.social · Mar 13

Find out more about my project: www.polydbms.org

PolyDB Project | TU Berlin

www.polydbms.org

1

Haralampos Gavriilidis @harrygav.bsky.social · Mar 13

A huge thank you to the Software Campus team Stefan Jazdzejewski, Susanne Kegler, Natalia Teixeira Silva, and Tiziana Maglia for making this program such a valuable experience and Holger Konle from DLR Projektträger for his invaluable support throughout the project!

1 1

Haralampos Gavriilidis @harrygav.bsky.social · Mar 13

Through my project #PolyDB, I had the chance to lead a team of amazing research assistants, travel to top conferences, and meet incredible people—experiences that wouldn’t have been possible without Software Campus.

1 1

Haralampos Gavriilidis @harrygav.bsky.social · Mar 13

Being part of Software Campus has been an incredible opportunity to bridge academia and industry, with great leadership trainings and 100k€ funding for research, travel, and equipment—I highly recommend applying if you're a PhD student in Germany! 🚀

Software Campus @softwarecampus.bsky.social · Mar 11

It's #Interview Time 🙌

@harrygav.bsky.social, is a PhD candidate in #DataManagementSystems at #BIFOLD & #TUBerlin.
His #SoftwareCampusProject #PolyDB is about contributing to a more #sustainable future in which #Data accessibility for applications is guaranteed.

softwarecampus.de/en/teilnehme...

1 1 6