THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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As of Flink 1.19, json plans don't support DQLs, hence we simply return OK if an application cluster is submitted sucessfullysuccessfully.
JsonPlan Limitations
As described in FLIP-190, json plans have some limitations that also apply to the interactive execution of SQL Gateway application mode, below are the most significant ones:
- DQLs are not supported.
- Batch queries are not supported, because "Batch ExecNodes cannot be serialized into a JSON plan".
Public Interfaces
New Classes
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