Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/4488#discussion_r131704681
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/StreamTableEnvironment.scala
---
@@ -502,6 +500,68 @@ abstract class StreamTableEnvironment(
}
/**
+ * Injects markers for time indicator fields into the field indexes.
+ * A rowtime indicator is represented as -1, a proctime indicator as -2.
+ *
+ * @param fieldIndexes The field indexes into which the time indicators
markers are injected.
+ * @param rowtime An optional rowtime indicator
+ * @param proctime An optional proctime indicator
+ * @return An adjusted array of field indexes.
+ */
+ private def adjustFieldIndexes(
+ fieldIndexes: Array[Int],
+ rowtime: Option[(Int, String)],
+ proctime: Option[(Int, String)]): Array[Int] = {
+
+ // inject rowtime field
+ val withRowtime = if (rowtime.isDefined) {
--- End diff --
we could use pattern matching here
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