wuchong commented on issue #8712: [FLINK-12819][sql-client] Reuse TableEnvironment between different SQ… URL: https://github.com/apache/flink/pull/8712#issuecomment-502051439 Thanks for the pull request @docete . However, I think we can't reuse `TableEnvironment` between SQLs. Because `StreamExecutionEnvironment` is stateful and will cache the previous transformation. Which means it will re-run the first SQL job when submitting the second SQL job. I think we should decouple `StreamExecutionEnvironment` from `TableEnvironment` first, i.e. generate the` StreamGraph` by `TableEnvironment` itself. And then start this work.
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