cloud-fan commented on code in PR #48883:
URL: https://github.com/apache/spark/pull/48883#discussion_r1863633533
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sql/api/src/main/scala/org/apache/spark/sql/types/CharType.scala:
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@@ -17,14 +17,19 @@
package org.apache.spark.sql.types
+import org.json4s.JsonAST.{JString, JValue}
+
import org.apache.spark.annotation.Experimental
+import org.apache.spark.sql.catalyst.util.CollationFactory
@Experimental
-case class CharType(length: Int) extends AtomicType {
+case class CharType(length: Int)
+ extends StringType(CollationFactory.UTF8_BINARY_COLLATION_ID,
FixedLength(length)) {
require(length >= 0, "The length of char type cannot be negative.")
override def defaultSize: Int = length
override def typeName: String = s"char($length)"
+ override def jsonValue: JValue = JString(typeName)
Review Comment:
shouldn't the json value include the length?
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