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Which issue does this PR close?

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What changes are included in this PR?

Are these changes tested?

Are there any user-facing changes?

@github-actions github-actions bot added core Core DataFusion crate execution Related to the execution crate labels Oct 9, 2025

/// Deregister the store previously registered with the same key. Returns the
/// deregistered store if it existed.
fn deregister_store(&self, url: &Url) -> Result<Arc<dyn ObjectStore>>;
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This is breaking, we can add a label. I'm thinking maybe we can have a default return value and remove it in another version but I don't know what would be a good default return value (I was thinking of just erroring).

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Do you mean that giving it a default value and letting users be aware of the new API in the next release, then removing the default value in the next release after next?

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Yes, but I am very open to doing it another way if there is a more standard way to deal with this.

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@alamb alamb Oct 21, 2025

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I suggest a good return value would be returning an unimplemented error

That would be backwards compatible and non API breaking

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Made the changes

@jonathanc-n jonathanc-n requested a review from xudong963 October 15, 2025 01:25
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@alamb Would you like to take a quick look?

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Thanks @jonathanc-n -- I left a suggestion for the default. Otherwise looks good to me


/// Deregister the store previously registered with the same key. Returns the
/// deregistered store if it existed.
fn deregister_store(&self, url: &Url) -> Result<Arc<dyn ObjectStore>>;
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@alamb alamb Oct 21, 2025

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I suggest a good return value would be returning an unimplemented error

That would be backwards compatible and non API breaking

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@alamb alamb added this pull request to the merge queue Oct 21, 2025
Merged via the queue into apache:main with commit 531af8e Oct 21, 2025
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@jonathanc-n I'm so sorry, I missed the PR. Good job!

/cc @zhuqi-lucas , the PR is merged

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Nice, thank you @jonathanc-n @alamb @xudong963 ! I will do follow-up in our internal project.

tobixdev pushed a commit to tobixdev/datafusion that referenced this pull request Nov 2, 2025
## Which issue does this PR close?

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- Closes apache#17854 .

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Support unregister_store for datafusion

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