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https://issues.apache.org/jira/browse/SPARK-37076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17431421#comment-17431421
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Apache Spark commented on SPARK-37076:
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User 'sarutak' has created a pull request for this issue:
https://github.com/apache/spark/pull/34341
> Implement StructType.toString explicitly for Scala 2.13
> -------------------------------------------------------
>
> Key: SPARK-37076
> URL: https://issues.apache.org/jira/browse/SPARK-37076
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.3.0
> Environment:
> Reporter: Kousuke Saruta
> Assignee: Kousuke Saruta
> Priority: Minor
>
> The string returned by StructType.toString is different between Scala 2.12
> and 2.13.
> * Scala 2.12
> {code}
> val st = StructType(StructField("a", IntegerType) :: Nil)
> st.toString
> res0: String = StructType(StructField(a,IntegerType,true)
> {code}
> * Scala 2.13
> {code}
> val st = StructType(StructField("a", IntegerType) :: Nil)
> st.toString
> val res0: String = Seq(StructField(a,IntegerType,true))
> {code}
> It's because the logic to make the prefix of the string was changed from
> Scala 2.13.
> Scala 2.12:
> https://github.com/scala/scala/blob/v2.12.15/src/library/scala/collection/TraversableLike.scala#L804
> Scala
> 2:13:https://github.com/scala/scala/blob/v2.13.5/src/library/scala/collection/Seq.scala#L46
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