yeshengm commented on a change in pull request #33673:
URL: https://github.com/apache/spark/pull/33673#discussion_r684518909
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/NoSuchItemException.scala
##########
@@ -29,18 +29,24 @@ import org.apache.spark.sql.types.StructType
* Thrown by a catalog when an item cannot be found. The analyzer will rethrow
the exception
* as an [[org.apache.spark.sql.AnalysisException]] with the correct position
information.
*/
-class NoSuchDatabaseException(
- val db: String) extends NoSuchNamespaceException(s"Database '$db' not
found")
+case class NoSuchDatabaseException(db: String)
+ extends AnalysisException(s"Database '$db' not found")
Review comment:
Scala disallows a case class to inherit another case class.
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