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https://issues.apache.org/jira/browse/SPARK-39281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jia Fan updated SPARK-39281:
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Description: The optimization of {{DefaultTimestampFormatter}} has been
implemented in [#36562|https://github.com/apache/spark/pull/36562] , this
ticket adds the optimization of legacy format. The basic logic is to prevent
the formatter from throwing exceptions, and then use catch to determine whether
the parsing is successful.
> Speed up Timestamp type inference of legacy format in JSON/CSV data source
> --------------------------------------------------------------------------
>
> Key: SPARK-39281
> URL: https://issues.apache.org/jira/browse/SPARK-39281
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.4.0
> Reporter: Gengliang Wang
> Priority: Major
>
> The optimization of {{DefaultTimestampFormatter}} has been implemented in
> [#36562|https://github.com/apache/spark/pull/36562] , this ticket adds the
> optimization of legacy format. The basic logic is to prevent the formatter
> from throwing exceptions, and then use catch to determine whether the parsing
> is successful.
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