maropu commented on issue #27444: [SPARK-30614][SQL] The native ALTER COLUMN syntax should change one property at a time URL: https://github.com/apache/spark/pull/27444#issuecomment-582238585 We don't need to keep the legacy(existing) behaviour? I think the current one still looks useful for users. As @cloud-fan said above, a new syntax for multiple column changes looks fine to me. But, we need more discussion for that, so I think its worth keeping the current one.
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