Github user hequn8128 commented on the issue: https://github.com/apache/flink/pull/6233 Hi @snuyanzin , thanks for your PR. The code looks good and the `deepToString()` function returns result correctly. I could not spot any issues with the implementation. To make the PR better, I think we can add a test in `CliUtilsTest` to test the `rowToString` function, since code in the function also has been changed. BTW, the PR template can be done better. See for PR https://github.com/apache/flink/pull/5811 as an example. Best, Hequn
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