stevenzwu commented on code in PR #5380:
URL: https://github.com/apache/iceberg/pull/5380#discussion_r944071871
##########
docs/flink-getting-started.md:
##########
@@ -634,6 +634,26 @@ FlinkSink.forRowData(input)
env.execute("Test Iceberg DataStream");
```
+## UPSERT mode
+
+Iceberg supports `UPSERT` based on the primary key when writing data into v2
table format.
+
+Enable the `UPSERT` mode on a table by adding the `write.upsert.enabled`
configuration. All writing will be in `UPSERT` mode unless you overwrite it
when building the writer:
Review Comment:
> All writing will be in `UPSERT` mode unless you overwrite it when building
the writer:
This part is not completed. "building the writer" is not followed by
example. I would actually suggest remove this part. Instead, you can follow up
with the previous sentence as "Here is an example create table SQL statement
with upsert table property".
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