Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/4488#discussion_r131712146
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/codegen/CodeGenerator.scala
---
@@ -245,14 +244,18 @@ abstract class CodeGenerator(
returnType: TypeInformation[_ <: Any],
resultFieldNames: Seq[String])
: GeneratedExpression = {
- val input1AccessExprs = input1Mapping.map { idx =>
- generateInputAccess(input1, input1Term, idx)
+ val input1AccessExprs = input1Mapping.map {
+ case -1 => generateStreamRecordTimestampAcccess()
+ case -2 =>
generateNullLiteral(TimeIndicatorTypeInfo.PROCTIME_INDICATOR)
--- End diff --
Can we use constants for this special indices?
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