Github user viirya commented on a diff in the pull request: https://github.com/apache/spark/pull/19604#discussion_r147604947 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JdbcUtils.scala --- @@ -440,8 +440,9 @@ object JdbcUtils extends Logging { case StringType => (array: Object) => - array.asInstanceOf[Array[java.lang.String]] - .map(UTF8String.fromString) + // some underling types are not String such as uuid, inet, cidr, etc. --- End diff -- underlying?
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