Reo-LEI commented on a change in pull request #2863:
URL: https://github.com/apache/iceberg/pull/2863#discussion_r678365099
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File path:
flink/src/main/java/org/apache/iceberg/flink/sink/BaseDeltaTaskWriter.java
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@@ -69,6 +72,9 @@ public void write(RowData row) throws IOException {
switch (row.getRowKind()) {
case INSERT:
+ if (upsert) {
+ writer.delete(row);
+ }
Review comment:
I think we can only delete row on `UPDATE_AFTER` and keep
`UPDATE_BEFORE` do nothing to prevent delete one row twice
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