fix: SQL logic error

Author: uuiid

tests/unique_cases/issue1446.cpp

@@ -41,9 +41,13 @@ TEST_CASE("issue1446") {
                                            make_column("deptno", &Department::m_deptno, primary_key().autoincrement()),
                                            make_column("deptname", &Department::m_deptname),
                                            make_column("loc", &Department::m_loc, null())));
-
+    storage.sync_schema(true);
+    storage.insert(Department{10, "Accounts", "New York"});
+    storage.insert(Employee{1, "Paul", "Salesman", 2, "2002-02-12", 20000.0, 0.0, 1});
+    storage.insert(Employee{2, "Allen", "Salesman", 2, "2002-02-12", 20000.0, 0.0, 1});
     for (auto&& [obj, obj2, col]:
          storage.iterate(select(columns(object<Employee>(true), object<Department>(true), &Department::m_deptno),
+                                from<Employee>(),
                                 join<Department>(on(c(&Employee::m_depno) == c(&Department::m_deptno)))))) {
         STATIC_REQUIRE(std::is_same_v<decltype(obj), Employee>);
         STATIC_REQUIRE(std::is_same_v<decltype(obj2), Department>);