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https://issues.apache.org/jira/browse/SPARK-49787?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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L. C. Hsieh reassigned SPARK-49787:
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Assignee: L. C. Hsieh
> Cast between UDT and other types
> --------------------------------
>
> Key: SPARK-49787
> URL: https://issues.apache.org/jira/browse/SPARK-49787
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: L. C. Hsieh
> Assignee: L. C. Hsieh
> Priority: Major
>
> Our customer faced an error when migrating queries that write UDT column from
> Hive to Iceberg table.
> The error happens when Spark tries to cast UDT column to the data type (i.e.,
> the sql type of the UDT) of the table column. The cast is added by table
> column resolution rule for V2 writing commands.
> Currently `Cast` expression doesn't support casting between UDT and other
> types.
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