rdblue commented on issue #25291: [SPARK-28554][SQL] implement basic catalog functionalities for JDBC v2 with a DS v1 fallback API URL: https://github.com/apache/spark/pull/25291#issuecomment-517816946 @cloud-fan, why does this convert from v2 plans to v1 plans? I don't think that v1 plans should be supported. To use v1 plans, the existing v1 code paths and support should be used. There's no need to mix v2 into it. The support that I think is the goal of this effort is to provide a v2 implementation that calls a v1 writer for append and read operations. I suggest clarifying the goal of this and possibly discussing it in the next v2 sync.
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