samredai commented on a change in pull request #3827:
URL: https://github.com/apache/iceberg/pull/3827#discussion_r777481886
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File path: site/docs/flink.md
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@@ -522,6 +522,18 @@ FlinkSink.forRowData(input)
env.execute("Test Iceberg DataStream");
```
+## Streaming upsert write
+
+Iceberg supports upsert based on the primary key when writing streaming data.
Review comment:
Would it be helpful to state here that this requires v2 tables?
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