should be it

external/duckdb/test/sql/upsert/upsert_duplicates_issue.test

@@ -0,0 +1,17 @@
+# name: test/sql/upsert/upsert_duplicates_issue.test
+# group: [upsert]
+
+statement ok
+pragma enable_verification;
+
+require parquet
+
+statement ok
+CREATE TABLE tmp_edges(from_v VARCHAR, to_v VARCHAR, PRIMARY KEY(from_v, to_v));
+
+statement ok
+INSERT INTO tmp_edges
+    from 'data/parquet-testing/upsert_bug.parquet'
+    ON CONFLICT DO UPDATE SET
+        from_v = excluded.from_v
+;