cloud-fan commented on issue #24332: [SPARK-27423][SQL] Cast DATE <-> TIMESTAMP according to the SQL standard URL: https://github.com/apache/spark/pull/24332#issuecomment-481503356 a correction: the timestamp in Spark is TIMESTAMP WITH LOCAL TIMEZONE. It's non-SQL-standard(but Oracle has it) and is a little different from TIMESTAMP WITH TIMEZONE. TIMESTAMP WITH TIMEZONE means, each timestamp value has an associated timezone. TIMESTAMP WITH LOCAL TIMEZONE means, all the timestamp values have a session-global associated timezone. The casting behavior should be the same though.
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