+1 (binding) On Fri, Oct 23, 2026, 9:28 AM huaxin gao <[email protected]> wrote:
> +1 (non-binding) > > On Fri, Oct 23, 2026 at 8:06 AM Gang Wu <[email protected]> wrote: > >> +1 (binding) >> >> On Fri, Oct 23, 2026 at 5:32 PM Eduard Tudenhöfner < >> [email protected]> wrote: >> >>> +1 (binding) >>> >>> On Fri, Oct 23, 2026 at 12:06 AM Amogh Jahagirdar <[email protected]> >>> wrote: >>> >>>> +1 (binding) >>>> >>>> On Thu, Oct 22, 2026 at 2:27 PM Fokko Driesprong <[email protected]> >>>> wrote: >>>> >>>>> +1 (binding) >>>>> >>>>> On 2026/10/22 19:00:04 Russell Spitzer wrote: >>>>> > +1 (bind) >>>>> > >>>>> > On Thu, Oct 22, 2026 at 11:41 AM Andrei Tserakhau via dev < >>>>> > [email protected]> wrote: >>>>> > >>>>> > > +1 (non-binding) >>>>> > > >>>>> > > On Thu, Oct 22, 2026 at 8:14 PM Anurag Mantripragada < >>>>> > > [email protected]> wrote: >>>>> > > >>>>> > >> +1 (non-binding) >>>>> > >> >>>>> > >> This applies nicely for column updates too. Thanks Anoop. >>>>> > >> >>>>> > >> ~ Anurag >>>>> > >> >>>>> > >> On Thu, Oct 22, 2026 at 11:11 AM Szehon Ho < >>>>> [email protected]> >>>>> > >> wrote: >>>>> > >> >>>>> > >>> +1 (binding) >>>>> > >>> >>>>> > >>> On Thu, Oct 22, 2026 at 11:03 AM Hongyue Zhang < >>>>> [email protected]> >>>>> > >>> wrote: >>>>> > >>> >>>>> > >>>> +1 (non-binding) >>>>> > >>>> >>>>> > >>>> On Thu, Oct 22, 2026 at 10:49 AM Ryan Blue <[email protected]> >>>>> wrote: >>>>> > >>>> >>>>> > >>>>> +1 (binding) >>>>> > >>>>> >>>>> > >>>>> On Thu, Oct 22, 2026 at 10:46 AM Steven Wu < >>>>> [email protected]> >>>>> > >>>>> wrote: >>>>> > >>>>> >>>>> > >>>>>> +1 (binding) >>>>> > >>>>>> >>>>> > >>>>>> On Thu, Oct 22, 2026 at 9:56 AM Anoop Johnson < >>>>> [email protected]> >>>>> > >>>>>> wrote: >>>>> > >>>>>> >>>>> > >>>>>>> Hi, everyone - >>>>> > >>>>>>> >>>>> > >>>>>>> Following the discussion on v4 stats tightness [1], I'd like >>>>> to call >>>>> > >>>>>>> a vote on the spec change that replaces the per-column >>>>> `tight_bounds` field >>>>> > >>>>>>> with a single file-level `tight_stats` flag. >>>>> > >>>>>>> >>>>> > >>>>>>> Summary of the change: >>>>> > >>>>>>> >>>>> > >>>>>>> - Stats tightness is tracked once per file with a >>>>> `tight_stats` >>>>> > >>>>>>> flag on the tracked file instead of a `tight_bounds` >>>>> field on >>>>> > >>>>>>> every column's stats struct. >>>>> > >>>>>>> - The tightness flag covers all statistics (bounds and >>>>> null, >>>>> > >>>>>>> NaN, and value counts), not just bounds, so metadata-only >>>>> > >>>>>>> queries can trust the counts as well. >>>>> > >>>>>>> - When the `tight_stats` flag is absent, readers must >>>>> assume >>>>> > >>>>>>> stats are not tight. >>>>> > >>>>>>> - A deletion vector no longer implicitly makes stats wide; >>>>> > >>>>>>> `tight_stats` is the authoritative indicator, and engines >>>>> are >>>>> > >>>>>>> allowed to retighten stats without rewriting data files. >>>>> > >>>>>>> >>>>> > >>>>>>> References: >>>>> > >>>>>>> >>>>> > >>>>>>> 1. Discussion thread: >>>>> > >>>>>>> >>>>> https://lists.apache.org/thread.html/tv7bvqctdfh5qng1sx5rp8r4r00nsv60 >>>>> > >>>>>>> >>>>> > >>>>>>> 2. Design options doc: >>>>> > >>>>>>> >>>>> https://docs.google.com/document/d/13DbwnwKQXjvY3vRcFJo-qVAQWk-GB4zLzzYmFdPntZg/ >>>>> > >>>>>>> >>>>> > >>>>>>> 3. Spec PR: https://github.com/apache/iceberg/pull/18585 >>>>> > >>>>>>> >>>>> > >>>>>>> Please vote within the next 72 hours. >>>>> > >>>>>>> >>>>> > >>>>>>> [ ] +1 Adopt the tight_stats spec change >>>>> > >>>>>>> [ ] +0 >>>>> > >>>>>>> [ ] -1 Do not adopt, with reason >>>>> > >>>>>>> >>>>> > >>>>>>> Thanks, >>>>> > >>>>>>> Anoop >>>>> > >>>>>>> >>>>> > >>>>>> >>>>> > >>>>> >>>>
