should be it

external/duckdb/test/sql/upsert/upsert_explicit_index.test

@@ -0,0 +1,50 @@
+# name: test/sql/upsert/upsert_explicit_index.test
+# description: Test index UPSERTs.
+# group: [upsert]
+
+statement ok
+pragma enable_verification;
+
+statement ok
+CREATE TABLE tbl (i INT, j INT);
+
+statement ok
+INSERT INTO tbl VALUES (5, 3), (3, 2);
+
+statement ok
+CREATE UNIQUE INDEX my_index ON tbl(i);
+
+statement ok
+INSERT INTO tbl VALUES (5, 2) ON CONFLICT (i) DO UPDATE SET j = 10;
+
+query II
+SELECT i, j FROM tbl ORDER BY ALL DESC;
+----
+5	10
+3	2
+
+statement ok
+DROP TABLE tbl CASCADE;
+
+statement ok
+CREATE TABLE tbl (i INT PRIMARY KEY, j INT);
+
+statement ok
+INSERT INTO tbl VALUES (42, 21), (21, 42);
+
+statement ok
+CREATE INDEX my_index ON tbl(j);
+
+statement ok
+INSERT INTO tbl VALUES (42, 20) ON CONFLICT DO UPDATE SET j = 30;
+
+query III
+SELECT i, j, rowid FROM tbl WHERE j = 30;
+----
+42	30	2
+
+query III
+SELECT i, j, rowid FROM tbl ORDER BY ALL;
+----
+21	42	1
+42	30	2