Hi Michael,

I see the request on that PR as quite specific:

> Wouldn't it make sense to design the API first before making persistence
changes?

Instead, the approach on the PR seems to sort of "backdoor" in an API
change without an ML thread by first making the persistence-related changes
that optimize that API. Indeed, when the question was posed about what the
tangible benefit of the PR might be, you replied:

> As an example, JB recently brought up working on the UI - it would be
nice if the UI could print some information about the table without loading
the entire metadata

Presumably the UI would do this through some API, no? Or else how would
#2735 facilitate the UI doing this? However, you also commented:

> What API?
> Not every field stored in the persistence layer serves a public-facing API

In light of this its current state #2735 seems to be a sort of re-imagining
of #433, but without any of the tangible benefits or measurements around
perf. As it stands, I don't see how the project benefits from merging #2735
and tried to probe this with my questions on the PR. This question seems to
remain unaddressed.

You did comment that the PR being blocked implied a question about whether
it was "unsafe or incorrect", which is confusing to me -- one could propose
adding to Polaris some class that correctly and safely implements image
rotation, but without a viable use-case for that class I would hope we
wouldn't merge that code.

As to the other recent comment that it could be useful to add things to
persistence without any API exposing them, I'm not so sure about that. You
gave the example of the task interface, but there have been several
proposals to rework the task system exactly because it's not very
well-engineered. My understanding has historically been that the metastore
exists in service of the catalog service, which is exposed over a REST API.
Happy to discuss this more.

In short, if there's no benefit to merging #2735, I don't see why we would
rush into merging it. If our intent is to add some API that this PR might
optimize, why not design, discuss, and implement this API first before
going ahead with a premature optimization?

--EM



On Mon, Oct 13, 2025 at 10:55 AM Michael Collado <[email protected]>
wrote:

> Hey folks
>
> I got approval on https://github.com/apache/polaris/pull/2735 ten days
> ago,
> but a request for changes last Monday without any specific request or
> objection. I've asked a couple of times what the objection is, but haven't
> heard a response. As far as I can see, there's no technical reason to block
> this change. What's the community stance on this PR? At least three people
> (aside from myself) have suggested that the feature is useful. Does anyone
> feel that there is a technical reason for blocking this PR from merging? If
> there is a concrete objection, I'm happy to hear it, but if people feel
> this is generally useful, I'd like to move forward with merging.
>
> Mke
>

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