Adam's issues seemed related to the ListingTable API which Comet doesn't go
through. That said, I can't reproduce the issue in DataFusion alone, so
I'll retract my -1 and just defer the Comet upgrade until we can understand
it. If it is a true performance regression in DF, I suspect we can do a
54.1.

On Fri, Jun 5, 2026 at 1:28 PM Andrew Lamb <[email protected]> wrote:

> I believe Adam reported something similar in Vortex that was related to the
> new limits on the metadata cache size:
> https://github.com/apache/datafusion/issues/21080#issuecomment-4633904202
>
> On Fri, Jun 5, 2026 at 1:24 PM Matt Butrovich <[email protected]>
> wrote:
>
> > -1 (non-binding).
> >
> > Comet is seeing large performance regressions in TPC-H and TPC-DS SF1000
> > that seems related to metadata parsing in Parquet. At first I was
> wondering
> > if it had something to do with the predicate caching added in DF54, but I
> > have no conclusions yet. If we can find a config to change and add to the
> > upgrade guide, I could be swayed to remove my -1. I will continue to
> > investigate today and try to reproduce in just DataFusion.
> >
> >
> https://github.com/apache/datafusion/issues/21080#issuecomment-4633642413
> >
> > On Fri, Jun 5, 2026 at 5:14 AM Marko Milenković <[email protected]>
> > wrote:
> >
> > > +1 (binding)
> > >
> > > Thanks Matt, Andrew and all others involved
> > >
> > >
> > > --
> > > Marko Milenković
> > >
> > >
> > >
> > >
> > > > On 4 Jun 2026, at 00:32, Andrew Lamb <[email protected]> wrote:
> > > >
> > > > Hi,
> > > >
> > > > I would like to propose a release of Apache DataFusion version
> 54.0.0.
> > > >
> > > > This release candidate is based on commit:
> > > > 45d943dfb8699dc9cb9ef2320e955b73e3e6c03b [1]
> > > > The proposed release tarball and signatures are hosted at [2].
> > > > The changelog is located at [3].
> > > >
> > > > Please download, verify checksums and signatures, run the unit tests,
> > and
> > > > vote
> > > > on the release. The vote will be open for at least 72 hours.
> > > >
> > > > Only votes from PMC members are binding, but all members of the
> > community
> > > > are
> > > > encouraged to test the release and vote with "(non-binding)".
> > > >
> > > > The standard verification procedure is documented at
> > > >
> > >
> >
> https://github.com/apache/datafusion/blob/main/dev/release/README.md#verifying-release-candidates
> > > > .
> > > >
> > > > [ ] +1 Release this as Apache DataFusion 54.0.0
> > > > [ ] +0
> > > > [ ] -1 Do not release this as Apache DataFusion 54.0.0 because...
> > > >
> > > > Here is my vote:
> > > >
> > > > +1
> > > >
> > > > [1]:
> > > >
> > >
> >
> https://github.com/apache/datafusion/tree/45d943dfb8699dc9cb9ef2320e955b73e3e6c03b
> > > > [2]:
> > > >
> > >
> >
> https://dist.apache.org/repos/dist/dev/datafusion/apache-datafusion-54.0.0-rc1
> > > > [3]:
> > > >
> > >
> >
> https://github.com/apache/datafusion/blob/45d943dfb8699dc9cb9ef2320e955b73e3e6c03b/dev/changelog/54.0.0.md
> > >
> > >
> > > ---------------------------------------------------------------------
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> > > For additional commands, e-mail: [email protected]
> > >
> > >
> >
>

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