wuchong commented on a change in pull request #11490:
[FLINK-15579][table-planner-blink] UpsertStreamTableSink should work on batch
mode
URL: https://github.com/apache/flink/pull/11490#discussion_r396488243
##########
File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/planner/plan/utils/UpdatingPlanChecker.scala
##########
@@ -68,4 +70,18 @@ object UpdatingPlanChecker {
}
}
}
+
+ def getUniqueKeyForUpsertSink(
+ sinkNode: Sink,
+ planner: PlannerBase,
+ sink: UpsertStreamTableSink[_]): Option[Array[String]] = {
+ // extract unique key fields
+ // Now we pick shortest one to sink
+ // TODO UpsertStreamTableSink setKeyFields interface should be
Array[Array[String]]
+ val sinkFieldNames = sink.getTableSchema.getFieldNames
+ UpdatingPlanChecker.getUniqueKeyFields(sinkNode.getInput, planner,
sinkFieldNames) match {
Review comment:
`UpdatingPlanChecker.getUniqueKeyFields` is only used by this method. Maybe
you can merge it into this method.
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