beyond1920 commented on issue #9193: [FLINK-13318][table-planner-blink] Fix Blink planner tests failing on Scala 2.12 by setting SerialVersionUID of UDF explicitly URL: https://github.com/apache/flink/pull/9193#issuecomment-514029207 +1 to wuchong's opinion. In fact, we don't need to force users to set serializationId. We only need to add SerialVersionUID to UDF in plan tests, in order to generate a stable xml plan.
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