MaxGekk commented on issue #28137: [SPARK-31361][SQL] Rebase datetime in parquet/avro according to file written Spark version URL: https://github.com/apache/spark/pull/28137#issuecomment-610228516 > It's not possible to do the opposite though, as forward compatibility is not guaranteed. @cloud-fan I would propose to write value of `spark.sql.legacy.parquet.rebaseDateTimeInWrite.enabled` to Parquet/Avro meta. So, Spark 3.0 could check the flag in read and decide either do rebasing or skip it. If the flag does not present in meta info (saved by Spark 2.4), just do rebasing.
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