Github user godfreyhe commented on a diff in the pull request:
https://github.com/apache/flink/pull/3520#discussion_r106100087
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/dataset/BatchTableSourceScan.scala
---
@@ -57,17 +60,24 @@ class BatchTableSourceScan(
)
}
+ override def copy(traitSet: RelTraitSet, newTableSource:
TableSource[_]): TableSourceScan = {
+ new BatchTableSourceScan(
+ cluster,
+ traitSet,
+ getTable,
+ newTableSource.asInstanceOf[BatchTableSource[_]]
--- End diff --
`TableSource` instance in `TableSourceTable` which can be get by
`getTable.unwrap(classOf[TableSourceTable[_]])` has not changed never, and it
may be different from newTableSource.
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