I am happy to report the blog is now published to the Parquet website: https://parquet.apache.org/blog/2026/09/22/alp-adaptive-lossless-floating-point-encoding-in-apache-parquet/
On Fri, Sep 18, 2026 at 2:22 PM Andrew Lamb <[email protected]> wrote: > Now that we have completed the 2.14 release of Parquet, we are ready to > publish the ALP blog. > > I spent a little more time today ~obsessing~ editing, and I think it is > ready. If anyone else would like to review, please let us know otherwise > I hope to publish it early next week > > You can find a rendered preview here: > https://alamb.github.io/parquet-site/blog/2026/09/18/alp-adaptive-lossless-floating-point-encoding-in-apache-parquet/ > > The PR is here: https://github.com/apache/parquet-site/pull/195 > > > Andrew > > p.s. For anyone who reviewed previous versions, the major changes are > acknowledgements section and I updated the ecosystem adoption text (I > copy/pasted the current wording below for your convenience) > > ----- > > Acknowledgements > ALP was first published in a SIGMOD 2024 paper by Azim Afroozeh, Leonardo > Kuffó, and Peter Boncz from the Database Architectures Group at CWI. The > Vortex and Lance formats adopted ALP early, demonstrating its benefits in > industrial applications. In late 2025, the community began the > standardization process. Along with the authors of this blog, many > community members contributed, including Divjot Arora, Arnav Balyan, Devan > Benz, Ryan Blue, Alkis Evlogimenos, Vinoo Ganesh, Adrian Garcia Badaracco, > Curt Hagenlocher, Amogh Jahagirdar, Micah Kornfield, Robert Kruszewski, > Julien Le Dem, Kevin Liu, Steve Loughran, Ismaël Mejía, mwish, Antoine > Pitrou, Adam Reeve, Ed Seidl, Russell Spitzer, Matt Topol, Jeffrey Vo, > Daniel Weeks, Gang Wu, and Zehua Zou. > > Ecosystem Adoption > The encoding was released as part of parquet-format 2.14.0 in September > 2026. ALP is already supported in at least one major open source > implementation (the parquet 60.0.0 Rust crate), and we expect other Parquet > implementations to add support in the coming months. Please check the > Implementation Status page for the current state of support. You can also > try it today on your own datasets using the tool in the ALP benchmark > repository. > > > On Sat, Aug 29, 2026 at 8:22 AM Andrew Lamb <[email protected]> > wrote: > >> An update here: we have added the BYTE_STREAM_SPLIT + ZSTD >> >> Also, thank you to Arnav, Russell and Jigao for their comments >> >> Again, if anyone would like to review the current draft it is at [1] and >> a rendered preview is at [2]. >> >> Andrew >> >> >> [1]: https://github.com/apache/parquet-site/pull/195 >> [2]: >> https://alamb.github.io/parquet-site/blog/2026/08/14/alp-adaptive-lossless-floating-point-encoding-in-apache-parquet/ >> >> >> On Tue, Aug 25, 2026 at 1:34 PM Andrew Lamb <[email protected]> >> wrote: >> >>> Thanks Antoine, >>> >>> I will work with Kosta to update the numbers for the post. In the >>> interim, in case anyone is interested, you can see early results here[1]. >>> Spoiler is that BYTE_STREAM_SPLIT + ZSTD >>> * Gets the best average compression ratio >>> * Same average compression speed as PLAIN+ZSTD (both about 2x faster >>> than ALP) >>> * An order of magnitude slower for decompression and random lookup than >>> ALP >>> >>> Andrew >>> >>> [1]: https://github.com/alamb/alp_benchmark/issues/3 >>> >>> On Tue, Aug 25, 2026 at 4:44 AM Antoine Pitrou <[email protected]> >>> wrote: >>> >>>> >>>> It would be nice if the post included BYTE_STREAM_SPLIT + ZSTD in the >>>> benchmark comparisons. >>>> >>>> Regards >>>> >>>> Antoine. >>>> >>>> >>>> Le 23/08/2026 à 17:17, PRATEEK GAUR a écrit : >>>> > Enjoyed working with Kosta and Andrew on this. >>>> > >>>> > I was waiting for the email to show up in my inbox after Kosta sent >>>> it. >>>> > >>>> > But then realized this might have gone to spam. >>>> > Hoping replying to the email thread will pull it out of spam for >>>> others. >>>> > >>>> > Best >>>> > Prateek >>>> > >>>> > On Sat, Aug 22, 2026 at 9:22 AM Kosta Tarasov < >>>> [email protected]> >>>> > wrote: >>>> > >>>> >> Hi everyone, >>>> >> >>>> >> Andrew, Prateek, and I have been working on the ALP blog[1] and we >>>> think >>>> >> it's ready for review/comment. >>>> >> >>>> >> The blog covers the motivation for ALP, performance results, a >>>> technical >>>> >> overview, and ecosystem adoption. >>>> >> >>>> >> A rendered preview is available[2]. >>>> >> >>>> >> Thanks, >>>> >> Kosta >>>> >> >>>> >> [1]: https://github.com/apache/parquet-site/pull/195 >>>> >> >>>> >> [2]: >>>> >> >>>> https://alamb.github.io/parquet-site/blog/2026/08/14/alp-adaptive-lossless-floating-point-encoding-in-apache-parquet/ >>>> >> >>>> > >>>> >>>> >>>>
