Reo-LEI commented on a change in pull request #2898:
URL: https://github.com/apache/iceberg/pull/2898#discussion_r697892028



##########
File path: 
flink/src/test/java/org/apache/iceberg/flink/sink/TestFlinkIcebergSinkV2.java
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@@ -148,10 +159,6 @@ private void testChangeLogs(List<String> 
equalityFieldColumns,
                               List<List<Record>> expectedRecordsPerCheckpoint) 
throws Exception {
     DataStream<Row> dataStream = env.addSource(new 
BoundedTestSource<>(elementsPerCheckpoint), ROW_TYPE_INFO);
 
-    // Shuffle by the equality key, so that different operations of the same 
key could be wrote in order when

Review comment:
       Unfortunately, we could not assumes FlinkSink will got ordering input 
stream. Such as when using FlinkSQL, we could not easily to control network 
shuffle between two opr, and that will require user to have a good 
understanding of how FlinkSink even FlinkSQL works.




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