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https://issues.apache.org/jira/browse/SPARK-49763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17884109#comment-17884109
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Babu Mahesh commented on SPARK-49763:
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PR : https://github.com/apache/spark/pull/48220
> [CSV Reader] Add Flag to Control Inference of Time-Only Columns as String or
> Timestamp During Schema Detection
> --------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-49763
> URL: https://issues.apache.org/jira/browse/SPARK-49763
> Project: Spark
> Issue Type: Task
> Components: SQL
> Affects Versions: 3.5.2
> Reporter: Babu Mahesh
> Priority: Minor
> Labels: pull-request-available
>
> This task involves adding a configurable flag to control the inference of
> time-only columns during schema detection in Spark. By default, Spark
> converts time-only columns to {{Timestamp}} type, which can lead to
> unintended behavior in certain use cases. This new flag will allow users to
> specify whether time-only columns should be inferred as {{Timestamp}} or as
> {{{}String{}}}.
> h3. Key Changes:
> * Introduce a flag (e.g., {{{}inferStringTypeForTimeOnlyColumn{}}}).
> * When the flag is set to {{{}true{}}}, time-only columns will be inferred
> as {{{}String{}}}.
> * When the flag is set to {{false}} (default), time-only columns will be
> inferred as {{{}Timestamp{}}}.
> * Update documentation to reflect the new option.
> * Ensure backward compatibility by defaulting to the current behavior.
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