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_r293773998
##########
File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/plan/nodes/physical/stream/StreamExecCalc.scala
##########
@@ -116,11 +116,16 @@ class StreamExecCalc(
retainHeader = true,
"StreamExecCalc"
)
- new OneInputTransformation(
+ val ret = new OneInputTransformation(
inputTransform,
RelExplainUtil.calcToString(calcProgram, getExpressionString),
substituteStreamOperator,
BaseRowTypeInfo.of(outputType),
- inputTransform.getParallelism)
+ getResource.getParallelism)
+
+ if (getResource.getMaxParallelism > 0) {
+ ret.setMaxParallelism(getResource.getMaxParallelism)
Review comment:
Do we need to set max parallelism for calc? For example, a non-parallel
source following a calc, I think the calc can scale out.
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