Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3733#discussion_r113045326
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/datastream/DataStreamCalc.scala
---
@@ -45,7 +45,7 @@ class DataStreamCalc(
ruleDescription: String)
extends Calc(cluster, traitSet, input, calcProgram)
with CommonCalc
- with DataStreamRel {
+ with DataStreamRel[CRow] {
--- End diff --
`DataStreamRel` does not need a type parameter, IMO. All `DataStreamRel`
nodes should produce `CRow`.
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