Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/4199#discussion_r124990940
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/calcite/RelTimeIndicatorConverter.scala
---
@@ -349,6 +350,14 @@ class RelTimeIndicatorConverter(rexBuilder:
RexBuilder) extends RelShuttle {
isTimeIndicatorType(updatedCall.getOperands.get(0).getType) =>
updatedCall
+ case BasicOperatorTable.TUMBLE_ROWTIME |
+ BasicOperatorTable.TUMBLE_PROCTIME |
+ BasicOperatorTable.HOP_ROWTIME |
+ BasicOperatorTable.HOP_PROCTIME |
+ BasicOperatorTable.SESSION_ROWTIME |
+ BasicOperatorTable.SESSION_PROCTIME if
isTimeIndicatorType(updatedCall.getType) =>
+ updatedCall
--- End diff --
But you are right, it checks the return type and not the operands which is
a bug.
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