wuchong commented on a change in pull request #13721:
URL: https://github.com/apache/flink/pull/13721#discussion_r511707353
##########
File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/planner/plan/metadata/FlinkRelMdColumnUniqueness.scala
##########
@@ -304,6 +304,14 @@ class FlinkRelMdColumnUniqueness private extends
MetadataHandler[BuiltInMetadata
columns != null && util.Arrays.equals(columns.toArray, rel.getUniqueKeys)
}
+ def areColumnsUnique(
+ rel: StreamExecUpsertMaterialize,
+ mq: RelMetadataQuery,
+ columns: ImmutableBitSet,
+ ignoreNulls: Boolean): JBoolean = {
+ columns != null && util.Arrays.equals(columns.toArray, rel.uniqueKeys)
Review comment:
Good point!
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