+1 (non binding) Great to see this landing!
On Wed, Jul 22, 2026 at 8:48 AM Gang Wu <[email protected]> wrote: > > +1 (binding) > > I agree that the spec wording and doc organization still need more work but > they are not blocking. Happy to see that ALP is finally moving forward with > a vote! > > On Wed, Jul 22, 2026 at 4:42 AM Julien Le Dem <[email protected]> wrote: > > > +1 Thank you Prateek for your leadership > > > > On Mon, Jul 20, 2026 at 6:46 AM PRATEEK GAUR <[email protected]> wrote: > > > > > Hello everyone, > > > > > > This is a vote to add ALP (Adaptive Lossless floating-Point) as a new > > > encoding in Parquet, as discussed in the design document and proposal > > pull > > > request. > > > > > > We've had discussions on this in the design document ( > > > > > https://docs.google.com/document/d/1xz2cudDpN2Y1ImFcTXh15s-3fPtD_aWt/edit) > > > and the proposal pull request ( > > > https://github.com/apache/parquet-format/pull/557), as well as the > > > discussion thread ( > > > https://lists.apache.org/thread/tjtln1mmjqfoql1ls2dw9xpdk91r1909). > > > > > > Reference implementations are available in > > > > > > - parquet-java (https://github.com/apache/parquet-java/pull/3397) > > > - Arrow C++ (https://github.com/apache/arrow/pull/48345) > > > - Arrow Go (https://github.com/apache/arrow-go/pull/704). > > > - Test artifacts : https://github.com/apache/parquet-testing/pull/100 > > > > > > Cross-language compatibility is verified: the Arrow C++ decoder reads > > > Java-written data bit, covering V1 and V2 pages, multiple vector sizes, > > and > > > several real datasets — zero mismatches. > > > > > > This vote will be open for at least 72 hours: > > > > > > [ ] +1: Add ALP encoding to the Parquet spec > > > [ ] +0: Not going to block, but prefer . . . > > > [ ] -1: Do not add ALP to Parquet > > > > > > Thank you for all the feedback, input, and involvement in developing this > > > new encoding! > > > > > > Thanks, > > > Prateek Gaur > > > > >
