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https://issues.apache.org/jira/browse/SPARK-40079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weichen Xu resolved SPARK-40079.
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Fix Version/s: 3.1.4
3.4.0
3.3.1
3.2.3
Resolution: Fixed
> Add Imputer inputCols validation for empty input case
> -----------------------------------------------------
>
> Key: SPARK-40079
> URL: https://issues.apache.org/jira/browse/SPARK-40079
> Project: Spark
> Issue Type: Bug
> Components: ML
> Affects Versions: 3.3.0
> Reporter: Weichen Xu
> Assignee: Weichen Xu
> Priority: Major
> Fix For: 3.1.4, 3.4.0, 3.3.1, 3.2.3
>
>
> If Imputer inputCols is empty, the `fit` works fine but when saving model,
> error will be raised:
> {quote}AnalysisException:
> Datasource does not support writing empty or nested empty schemas.
> Please make sure the data schema has at least one or more column(s).
> {quote}
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