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https://issues.apache.org/jira/browse/SPARK-25178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16587841#comment-16587841
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Xiao Li commented on SPARK-25178:
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cc [~kiszk] Do you have a bandwidth to take this?
> Use dummy name for xxxHashMapGenerator key/value schema field
> -------------------------------------------------------------
>
> Key: SPARK-25178
> URL: https://issues.apache.org/jira/browse/SPARK-25178
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Kris Mok
> Priority: Minor
>
> Following SPARK-18952 and SPARK-22273, this ticket proposes to change the
> generated field name of the keySchema / valueSchema to a dummy name instead
> of using {{key.name}}.
> In previous discussion from SPARK-18952's PR [1], it was already suggested
> that the field names were being used, so it's not worth capturing the strings
> as reference objects here. Josh suggested merging the original fix as-is due
> to backportability / pickability concerns. Now that we're coming up to a new
> release, this can be revisited.
> [1]: https://github.com/apache/spark/pull/16361#issuecomment-270253719
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