MERGE statement with DELETE branch — F314

Apache DerbyBigQueryDb2 (LUW)H2MariaDBMySQLOracle DBPostgreSQLSQL ServerSQLite2009201120132015201720192021⊘ 3.5.7 - 3.41.0✓ 2008R2+✓ 15+⊘ 8.3 - 14⊘ 11gR1 - 21c⊘ 5.0 - 8.0.33⊘ 5.1 - 10.11✓ 1.4.198+⊘ 1.4.191 - 1.4.197✓ 9.7+✓ 2.0+✓ 10.15.1.3+