Github user KurtYoung commented on a diff in the pull request:
https://github.com/apache/flink/pull/3040#discussion_r95975427
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/dataset/DataSetCalc.scala
---
@@ -129,8 +131,35 @@ class DataSetCalc(
body,
returnType)
+ def getForwardIndices = {
+ //get indices of all modified operands
+ val modifiedOperands = calcProgram.
+ getExprList
+ .filter(_.isInstanceOf[RexCall])
+ .flatMap(_.asInstanceOf[RexCall].operands)
+ .map(_.asInstanceOf[RexLocalRef].getIndex)
--- End diff --
Shouldn't the modified fields are meaning to the input fields? So it should
be RexInputRef?
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