yucai commented on issue #24004: [SPARK-27084][SQL] Add function alias for bitand/bitnot/bitor/bitxor URL: https://github.com/apache/spark/pull/24004#issuecomment-471311440 "shiftleft" and "shiftright" are from Hive, Hive compatibility is possible the original consideration. With bitand/bitnot/bitor/bitxor, people from TD can easier move to Spark, it is good part. It also could be a bigger topic about how to support various SQL dialect.
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