nastra commented on code in PR #13231:
URL: https://github.com/apache/iceberg/pull/13231#discussion_r2128042776
##########
docs/docs/spark-writes.md:
##########
@@ -331,6 +332,26 @@ data.writeTo("prod.db.table")
.createOrReplace()
```
+### Merging data
+
+Spark 4.0 added support for performing a MERGE INTO query using the
`DataFrameWriterV2` API.
+
+A MERGE INTO query updates a table, the _target_ table, using a set of updates
from the _source_, which in this case, is a `DataFrame`:
Review Comment:
```suggestion
A MERGE INTO query updates a _target_ table using a set of updates from the
_source_, which in this case, is a `DataFrame`:
```
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