dongjoon-hyun commented on issue #24472: [SPARK-27578][SQL] Support INTERVAL ... HOUR TO SECOND syntax URL: https://github.com/apache/spark/pull/24472#issuecomment-497783773 Yep. I know. @lipzhu :) There is a trade-off always. Although Spark SQL was designed to be compatible with Hive, but we officially have unsupported features, too. - https://spark.apache.org/docs/latest/sql-migration-guide-hive-compatibility.html#unsupported-hive-functionality Since each SQL engine works differently, Apache Spark adds features based on the trade-off. Apache Spark cannot embrace all SQL engine behavior in terms of compatibility, and it's technically impossible.
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