wuchong commented on a change in pull request #8718:
[FLINK-12824][table-planner-blink] Set parallelism for stream SQL
URL: https://github.com/apache/flink/pull/8718#discussion_r293765451
##########
File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/plan/nodes/physical/stream/StreamExecTableSourceScan.scala
##########
@@ -88,11 +89,17 @@ class StreamExecTableSourceScan(
replaceInput(ordinalInParent, newInputNode.asInstanceOf[RelNode])
}
+ def getSourceTransformation(
+ streamEnv: StreamExecutionEnvironment): StreamTransformation[_] = {
+
tableSource.asInstanceOf[StreamTableSource[_]].getDataStream(streamEnv).getTransformation
Review comment:
We should cache the source transformation in this node to avoid calling
`getDataSteram` multiple times which will lead to multiple source
transformation in JobGraph. And make sure to call this
`getSourceTransformation` instead of `getDataStream` in this class.
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