[GitHub] [iceberg] openinx commented on a change in pull request #2047: refactor Flink source tests so that future FLIP-27 source test ca…

[GitBox <gi...@apache.org>]

openinx commented on a change in pull request #2047:
URL: https://github.com/apache/iceberg/pull/2047#discussion_r585514126



##########
File path: flink/src/main/java/org/apache/iceberg/flink/data/RowDataUtil.java
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@@ -69,4 +74,30 @@ public static Object convertConstant(Type type, Object value) {
     }
     return value;
   }
+
+  /**
+   * Similar to the private {@link RowDataSerializer#copyRowData(RowData, RowData)} method.
+   * This skips the check the arity of rowType and from,
+   * because the from RowData may contains additional column for position deletes.
+   * Using {@link RowDataSerializer#copy(RowData, RowData)} will fail the arity check.
+   */
+  public static RowData clone(RowData from, RowData reuse, RowType rowType, TypeSerializer[] fieldSerializers) {

Review comment:
       How the FLIP-27 use this method ?  How did they construct their `TypeSerializer` ? 




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