Apache Iceberg MERGE INTO statement

[Marcus Paulo]

Hi Everyone,

I couldn't find anything related to the return of the command `MERGE INTO`
provided by Iceberg.

Is it supposed to return the merged rows?

```python
    icebergDF = spark.sql("""
    MERGE INTO target_table t
    USING (SELECT * FROM source) s
    ON t.pres_codigo = s.pres_codigo
    WHEN MATCHED THEN UPDATE SET *
    WHEN NOT MATCHED THEN INSERT *
    """)

   icebergDF.show()
```

Is it possible to retrieve the merged rows?

Thanks in advance,

Marcus