dongjoon-hyun commented on a change in pull request #28935:
URL: https://github.com/apache/spark/pull/28935#discussion_r446594898
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
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@@ -2260,7 +2263,9 @@ class AstBuilder(conf: SQLConf) extends
SqlBaseBaseVisitor[AnyRef] with Logging
// Add Hive type string to metadata.
val rawDataType = typedVisit[DataType](ctx.dataType)
- val cleanedDataType = HiveStringType.replaceCharType(rawDataType)
+ val cleanedDataType = HiveNullType.replaceNullType(
+ HiveStringType.replaceCharType(rawDataType)
+ )
Review comment:
ditto.
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