Fix sub query argument order with multiple raw SQL

statement.go

@@ -182,8 +182,32 @@ func (stmt *Statement) AddVar(writer clause.Writer, vars ...interface{}) {
 			}
 		case *DB:
 			subdb := v.Session(&Session{Logger: logger.Discard, DryRun: true}).getInstance()
-			subdb.Statement.Vars = append(subdb.Statement.Vars, stmt.Vars...)
+			if v.Statement.SQL.Len() > 0 {
+				var (
+					vars = subdb.Statement.Vars
+					sql  = v.Statement.SQL.String()
+				)
+
+				subdb.Statement.Vars = make([]interface{}, 0, len(vars))
+				for _, vv := range vars {
+					subdb.Statement.Vars = append(subdb.Statement.Vars, vv)
+					bindvar := strings.Builder{}
+					v.Dialector.BindVarTo(&bindvar, subdb.Statement, vv)
+					sql = strings.Replace(sql, bindvar.String(), "?", 1)
+				}
+
+				subdb.Statement.SQL.Reset()
+				subdb.Statement.Vars = stmt.Vars
+				if strings.Contains(sql, "@") {
+					clause.NamedExpr{SQL: sql, Vars: vars}.Build(subdb.Statement)
+				} else {
+					clause.Expr{SQL: sql, Vars: vars}.Build(subdb.Statement)
+				}
+			} else {
+				subdb.Statement.Vars = append(stmt.Vars, subdb.Statement.Vars...)
 				subdb.callbacks.Query().Execute(subdb)
+			}
+
 			writer.WriteString(subdb.Statement.SQL.String())
 			stmt.Vars = subdb.Statement.Vars
 		default:

tests/query_test.go

@@ -991,13 +991,13 @@ func TestSubQueryWithRaw(t *testing.T) {
 	DB.Create(&users)
 
 	var count int64
-	err := DB.Raw("select count(*) from (?) tmp", DB.Raw("select name from users where age >= ? and name in (?)", 10, []string{"subquery_raw_1", "subquery_raw_3"})).Scan(&count).Error
+	err := DB.Raw("select count(*) from (?) tmp where 1 = ? AND name IN (?)", DB.Raw("select name from users where age >= ? and name in (?)", 10, []string{"subquery_raw_1", "subquery_raw_2", "subquery_raw_3"}), 1, DB.Raw("select name from users where age >= ? and name in (?)", 20, []string{"subquery_raw_1", "subquery_raw_2", "subquery_raw_3"})).Scan(&count).Error
 	if err != nil {
 		t.Errorf("Expected to get no errors, but got %v", err)
 	}
 
 	if count != 2 {
-		t.Errorf("Row count must be 1, instead got %d", count)
+		t.Errorf("Row count must be 2, instead got %d", count)
 	}
 
 	err = DB.Raw("select count(*) from (?) tmp",