Hi all,

The PR is up for review:

https://github.com/apache/iceberg/pull/15112

Thanks,
Alex


On Wed, Jan 21, 2026 at 6:49 PM Ryan Blue <[email protected]> wrote:
>
> A VOTE for REST spec updates usually happens after the changes are available 
> to review.
>
> On Wed, Jan 21, 2026 at 9:39 AM Alexandre Dutra <[email protected]> wrote:
>>
>> Thank you all!
>>
>> I think we have an agreement here. I'm happy to start working on the
>> PR, but I recall that a VOTE thread is necessary for this type of
>> modification. Should we initiate the vote now, or wait until the PR is
>> ready for merging (and vote on the PR contents)?
>>
>> Thanks,
>> Alex
>>
>> On Wed, Jan 21, 2026 at 1:08 AM Yufei Gu <[email protected]> wrote:
>> >
>> > +1 from me.
>> > Promoting the signer endpoint to the table level makes it more consistent 
>> > with other table scoped APIs, and it cleanly provides the 
>> > catalog(warehouse), namespace and table context without relying on 
>> > provider specific properties.
>> >
>> > Yufei
>> >
>> >
>> > On Tue, Jan 20, 2026 at 12:08 PM Christian Thiel 
>> > <[email protected]> wrote:
>> >>
>> >> +1 from me too, thanks Alex!
>> >> I tested returning the new Endpoint as the `s3.signer.endpoint` config of 
>> >> a LoadTableResult against all Iceberg Releases from 1.6.1 with Spark as 
>> >> well as pyiceberg 0.9 and 0.10 without problems. As long as the behaviour 
>> >> of the Endpoint stays the same for S3, I don't see any issues.
>> >>
>> >> On Tue, 20 Jan 2026 at 18:43, Jean-Baptiste Onofré <[email protected]> 
>> >> wrote:
>> >>>
>> >>> +1
>> >>>
>> >>> Regards
>> >>> JB
>> >>>
>> >>> On Fri, Jan 16, 2026 at 3:29 PM Alexandre Dutra <[email protected]> 
>> >>> wrote:
>> >>>>
>> >>>> Hi all,
>> >>>>
>> >>>> We discussed remote signing last Wednesday during the catalog sync
>> >>>> meeting and we all agreed that the default signing endpoint [1] is too
>> >>>> rigid. It lacks information about the table and namespace, but is also
>> >>>> unaware of catalogs/warehouses, which can be challenging when the same
>> >>>> signer client has to access multiple catalogs.
>> >>>>
>> >>>> One of the ideas that emerged was to promote the signer endpoint to
>> >>>> the "top-level" spec, under the table path. In short, it would become
>> >>>> something like this:
>> >>>>
>> >>>> /v1/{prefix}/namespaces/{namespace}/tables/{table}/sign
>> >>>>
>> >>>> Promoting the endpoint makes it more aligned with similar ones, like
>> >>>> the table credentials endpoint. It also solves the problem of passing
>> >>>> the namespace, table and warehouse identifiers to the server.
>> >>>>
>> >>>> The endpoint would become provider-agnostic though. The current
>> >>>> endpoint structure appears to be sufficiently generic, showing no
>> >>>> S3-specific quirks. For example, implementing Azure support using SAS
>> >>>> tokens seems feasible at first glance without any apparent obstacles
>> >>>> (that I could think of). But there might be implications that I'm not
>> >>>> immediately seeing.
>> >>>>
>> >>>> Of course, we would need to migrate the existing table properties to
>> >>>> more neutral names, e.g.:
>> >>>>
>> >>>> s3.signer.uri -> signer.uri
>> >>>> s3.signer.endpoint -> signer.endpoint
>> >>>>
>> >>>> What are your thoughts on this idea?
>> >>>>
>> >>>> Thanks,
>> >>>> Alex
>> >>>>
>> >>>> [1]: 
>> >>>> https://github.com/apache/iceberg/blob/55bfc7e82d03b5038bc5d0da852bd16615486926/aws/src/main/resources/s3-signer-open-api.yaml#L61

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