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https://issues.apache.org/jira/browse/SPARK-18950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15765624#comment-15765624
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Apache Spark commented on SPARK-18950:
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User 'bravo-zhang' has created a pull request for this issue:
https://github.com/apache/spark/pull/16365
> Report conflicting fields when merging two StructTypes.
> -------------------------------------------------------
>
> Key: SPARK-18950
> URL: https://issues.apache.org/jira/browse/SPARK-18950
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Cheng Lian
> Priority: Minor
> Labels: starter
>
> Currently, {{StructType.merge()}} only reports data types of conflicting
> fields when merging two incompatible schemas. It would be nice to also report
> the field names for easier debugging.
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