wuchong commented on issue #9433: [FLINK-13708] [table-planner-blink] transformations should be cleared after execution in blink planner URL: https://github.com/apache/flink/pull/9433#issuecomment-525684963 There are three issues: 1) explain() + execute() ==> will execute the job twice 2) explain() + explain() ==> will display two same physical plans 3) execute() + execute() ==> will execute the job twice in the second execute Blink planner has all of three issue. And flink planner has 1) and 2) issues.
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