Github user fhueske commented on a diff in the pull request: https://github.com/apache/flink/pull/4488#discussion_r131764752 --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/calcite/RelTimeIndicatorConverter.scala --- @@ -415,7 +406,13 @@ class RexTimeIndicatorMaterializer( case _ => updatedCall.getOperands.map { o => if (isTimeIndicatorType(o.getType)) { - rexBuilder.makeCall(TimeMaterializationSqlFunction, o) + if (isRowtimeIndicatorType(o.getType)) { --- End diff -- Not sure. The duplicated code is spread over 2 classes and differently parameterized. I tried to add a companion object to `RexTimeIndicatorMaterializer` and the method but this did not really improve the code, IMO.
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