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https://issues.apache.org/jira/browse/SPARK-20536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16400021#comment-16400021
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Apache Spark commented on SPARK-20536:
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User 'efimpoberezkin' has created a pull request for this issue:
https://github.com/apache/spark/pull/20832
> Extend ColumnName to create StructFields with explicit nullable
> ---------------------------------------------------------------
>
> Key: SPARK-20536
> URL: https://issues.apache.org/jira/browse/SPARK-20536
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Jacek Laskowski
> Priority: Trivial
>
> {{ColumnName}} defines methods to create {{StructFields}}.
> It'd be very user-friendly if there were methods to create {{StructFields}}
> with explicit {{nullable}} property (currently implicitly {{true}}).
> That could look as follows:
> {code}
> // E.g. def int: StructField = StructField(name, IntegerType)
> def int(nullable: Boolean): StructField = StructField(name, IntegerType,
> nullable)
> // or (untested)
> def int(nullable: Boolean): StructField = int.copy(nullable = nullable)
> {code}
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