Github user KurtYoung commented on the issue:
https://github.com/apache/flink/pull/3406
Hi @fhueske , i like your propose about moving the annotation from
`TableSource` to `TableSourceConverter`. Lets do it this way.
BTW, i noticed that you offered three possible methods to the
`TableSourceConverter`, i can only imagine `def requiredProperties:
Array[String]
` is necessary for now. It can help validating the converter and to decide
which converter we should use when multiple converters have the same
`TableType`.
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