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[minor] Improve documentation for HiveStringType's #21897

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[minor] Improve documentation for HiveStringType's #21897

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8 changes: 6 additions & 2 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/types/HiveStringType.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -56,14 +56,18 @@ object HiveStringType {
}

/**
* Hive char type.
* Hive char type. Similar to other HiveStringType's, these datatypes should only used for
* parsing, and should NOT be used anywhere else. Any instance of these data types should be
* replaced by a [[StringType]] before analysis.
*/
case class CharType(length: Int) extends HiveStringType {
override def simpleString: String = s"char($length)"
}

/**
* Hive varchar type.
* Hive varchar type. Similar to other HiveStringType's, these datatypes should only used for
* parsing, and should NOT be used anywhere else. Any instance of these data types should be
* replaced by a [[StringType]] before analysis.
*/
case class VarcharType(length: Int) extends HiveStringType {
override def simpleString: String = s"varchar($length)"
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