             "SELECT * FROM \"readers\" WHERE -((-\"age\") + 1)")
     }
     
-    func testInfixMinusOperator() throws {
+    func testInfixSubtractOperator() throws {
         let dbQueue = try makeDatabaseQueue()
         
         XCTAssertEqual(

            """
            SELECT "name" || ' ' || "name" FROM "readers"
            """)
    }

    

        XCTAssertEqual(
            sql(dbQueue, tableRequest.filter(2 * (Col.age * Col.age))),
            "SELECT * FROM \"readers\" WHERE 2 * (\"age\" * \"age\")")
    }
    
    func testJoinedMultiplyOperator() throws {
        let dbQueue = try makeDatabaseQueue()
        
        XCTAssertEqual(
            sql(dbQueue, tableRequest.select([].joined(operator: .multiply))),
            "SELECT 1 FROM \"readers\"")

        XCTAssertEqual(
            sql(dbQueue, tableRequest.select([Col.age, Col.age].joined(operator: .multiply))),
            "SELECT \"age\" * \"age\" FROM \"readers\"")
        
        XCTAssertEqual(
            sql(dbQueue, tableRequest.select([Col.age, 2.databaseValue, Col.age].joined(operator: .multiply))),
            "SELECT \"age\" * 2 * \"age\" FROM \"readers\"")

        // Not flattened
        XCTAssertEqual(
            sql(dbQueue, tableRequest.select([
                [Col.age, 1.databaseValue].joined(operator: .multiply),
                [2.databaseValue, Col.age].joined(operator: .multiply),
                ].joined(operator: .multiply))),
            "SELECT (\"age\" * 1) * (2 * \"age\") FROM \"readers\"")
    }
    
    func testInfixDivideOperator() throws {
