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Wenchen Fan reassigned SPARK-36803:
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Assignee: Ivan
> ClassCastException: optional int32 col-0 is not a group when reading legac
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https://issues.apache.org/jira/browse/SPARK-36803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-36803:
Assignee: (was: Apache Spark)
> ClassCastException: optional int32 col-0 is not a gro
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https://issues.apache.org/jira/browse/SPARK-36803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-36803:
Assignee: Apache Spark
> ClassCastException: optional int32 col-0 is not a group when rea