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[SPARK-58225][PYTHON] Delete unused TransformWithStateInPandasSerializer#57382

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[SPARK-58225][PYTHON] Delete unused TransformWithStateInPandasSerializer#57382
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@Yicong-Huang

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What changes were proposed in this pull request?

Delete the unused TransformWithStateInPandasSerializer. It became dead code after SPARK-58128 moved its logic into read_udfs() and SPARK-58190 removed its only subclass.

Why are the changes needed?

Dead-code cleanup. No remaining references.

Does this PR introduce any user-facing change?

No.

How was this patch tested?

Existing tests. No behavior change.

Was this patch authored or co-authored using generative AI tooling?

No.

@uros-b uros-b left a comment

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Thank you @Yicong-Huang and @HyukjinKwon!

@Yicong-Huang

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Thanks @HyukjinKwon @uros-b, merging

Yicong-Huang added a commit that referenced this pull request Jul 21, 2026
### What changes were proposed in this pull request?

Delete the unused `TransformWithStateInPandasSerializer`. It became dead code after SPARK-58128 moved its logic into `read_udfs()` and SPARK-58190 removed its only subclass.

### Why are the changes needed?

Dead-code cleanup. No remaining references.

### Does this PR introduce _any_ user-facing change?

No.

### How was this patch tested?

Existing tests. No behavior change.

### Was this patch authored or co-authored using generative AI tooling?

No.

Closes #57382 from Yicong-Huang/SPARK-58225.

Authored-by: Yicong Huang <17627829+Yicong-Huang@users.noreply.github.com>
Signed-off-by: Yicong-Huang <17627829+Yicong-Huang@users.noreply.github.com>
(cherry picked from commit e3eda67)
Signed-off-by: Yicong-Huang <17627829+Yicong-Huang@users.noreply.github.com>
@Yicong-Huang

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Merge Summary:

Posted by merge_spark_pr.py

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3 participants