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Which issue does this PR close?

  • Closes #.

Rationale for this change

Temporary file is created during test, see reproducer in datafusion-cli

yongting@Yongtings-MacBook-Pro-2 ~/C/datafusion (main=)> cargo test --package datafusion --test core_integration --all-features -- dataframe::test_copy_schema --exact --nocapture
   Compiling datafusion v50.3.0 (/Users/yongting/Code/datafusion/datafusion/core)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 2.50s
     Running tests/core_integration.rs (target/debug/deps/core_integration-dee3896b38f536b2)

running 1 test
test dataframe::test_copy_schema ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 801 filtered out; finished in 0.02s

yongting@Yongtings-MacBook-Pro-2 ~/C/datafusion (main=)> git status
On branch main
Your branch is up to date with 'upstream/main'.

Untracked files:
  (use "git add <file>..." to include in what will be committed)
        "datafusion/core/\"/"

nothing added to commit but untracked files present (use "git add" to track)

This PR fixes this test, and make CI stricter for similar temporary file creations.

What changes are included in this PR?

Are these changes tested?

Yes, I have run the CI without fix in my local repo, it's failing as expected: https://github.com/2010YOUY01/arrow-datafusion/actions/runs/18913128118/job/53989721867

After the fix, the CI should be able to pass.

Are there any user-facing changes?

@github-actions github-actions bot added development-process Related to development process of DataFusion core Core DataFusion crate labels Oct 30, 2025

let query = format!(
"COPY source_table TO '{:?}' STORED AS csv",
"COPY source_table TO '{}' STORED AS csv",
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Debug display with '{:?}' will make the path look like "/foo/bar", and " is treated as a directory name.

@2010YOUY01
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Thanks for the review!

@2010YOUY01 2010YOUY01 added this pull request to the merge queue Oct 30, 2025
Merged via the queue into apache:main with commit 9c116a5 Oct 30, 2025
28 checks passed
tobixdev pushed a commit to tobixdev/datafusion that referenced this pull request Nov 2, 2025
…#18374)

## Which issue does this PR close?

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enhancements and this helps us generate change logs for our releases.
You can link an issue to this PR using the GitHub syntax. For example
`Closes apache#123` indicates that this PR will close issue apache#123.
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- Closes #.

## Rationale for this change

<!--
Why are you proposing this change? If this is already explained clearly
in the issue then this section is not needed.
Explaining clearly why changes are proposed helps reviewers understand
your changes and offer better suggestions for fixes.
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Temporary file is created during test, see reproducer in
`datafusion-cli`

```sh
yongting@Yongtings-MacBook-Pro-2 ~/C/datafusion (main=)> cargo test --package datafusion --test core_integration --all-features -- dataframe::test_copy_schema --exact --nocapture
   Compiling datafusion v50.3.0 (/Users/yongting/Code/datafusion/datafusion/core)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 2.50s
     Running tests/core_integration.rs (target/debug/deps/core_integration-dee3896b38f536b2)

running 1 test
test dataframe::test_copy_schema ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 801 filtered out; finished in 0.02s

yongting@Yongtings-MacBook-Pro-2 ~/C/datafusion (main=)> git status
On branch main
Your branch is up to date with 'upstream/main'.

Untracked files:
  (use "git add <file>..." to include in what will be committed)
        "datafusion/core/\"/"

nothing added to commit but untracked files present (use "git add" to track)
```

This PR fixes this test, and make CI stricter for similar temporary file
creations.

## What changes are included in this PR?

<!--
There is no need to duplicate the description in the issue here but it
is sometimes worth providing a summary of the individual changes in this
PR.
-->

## Are these changes tested?

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We typically require tests for all PRs in order to:
1. Prevent the code from being accidentally broken by subsequent changes
2. Serve as another way to document the expected behavior of the code

If tests are not included in your PR, please explain why (for example,
are they covered by existing tests)?
-->
Yes, I have run the CI without fix in my local repo, it's failing as
expected:
https://github.com/2010YOUY01/arrow-datafusion/actions/runs/18913128118/job/53989721867

After the fix, the CI should be able to pass.

## Are there any user-facing changes?

<!--
If there are user-facing changes then we may require documentation to be
updated before approving the PR.
-->

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If there are any breaking changes to public APIs, please add the `api
change` label.
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