Github user wuchong commented on a diff in the pull request:
https://github.com/apache/flink/pull/3039#discussion_r93759055
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/schema/TableSourceTable.scala
---
@@ -25,6 +25,6 @@ import org.apache.flink.types.Row
/** Table which defines an external table via a [[TableSource]] */
class TableSourceTable(val tableSource: TableSource[_])
extends FlinkTable[Row](
--- End diff --
I think it's not necessary to declare the return type is `Row`.
`TableSource` could return Pojo in the future.
So it should be declared like `DataSetTable` and `DataStreamTable`, such
as:
```scala
class TableSourceTable[T](val tableSource: TableSource[T])
extends FlinkTable[T](
```
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