dont use placeholders in returning clause

insert.go

@@ -52,16 +52,14 @@ func (s *SQURL) formatInsert() (query string, parameters []any, err error) {
 
 	if s.fields != nil {
 		fieldParams := ""
-		i := len(*s.changeKeys) + 1
+		i := 0
 		for val := range *s.fields {
-			if i < len(*s.fields)+len(*s.changeKeys) {
-				placeholders += fmt.Sprintf("$%v,%v", i, s.delimiter)
-				fieldParams += fmt.Sprintf("$%v,%v", i, s.delimiter)
+			fieldParams += fmt.Sprintf(`"%v".%v`, s.table, val)
+			if i < len(*s.fields)-1 {
+				fieldParams += fmt.Sprintf(",%v", s.delimiter)
 			} else {
-				placeholders += fmt.Sprintf("$%v%v", i, s.delimiter)
-				fieldParams += fmt.Sprintf("$%v%v", i, s.delimiter)
+				fieldParams += s.delimiter
 			}
-			parameters = append(parameters, val)
 			i++
 		}
 		query += fmt.Sprintf(`RETURNING %s`, fieldParams)

tests/insert_test.go

@@ -59,10 +59,10 @@ func TestReturning(t *testing.T) {
 		t.Error(err)
 	}
 
-	expected := `INSERT INTO public."User" ( id, first_name, last_name ) VALUES ( $1, $2, $3 ) RETURNING $4, $5, $6 `
+	expected := `INSERT INTO public."User" ( id, first_name, last_name ) VALUES ( $1, $2, $3 ) RETURNING "User".id, "User".first_name, "User".last_name `
 	if !strings.HasPrefix(query, `INSERT INTO public."User" ( `) ||
 		!strings.Contains(query, `) VALUES ( $1, $2, $3 ) `) ||
-		!strings.HasSuffix(query, `RETURNING $4, $5, $6 `) {
+		!strings.HasSuffix(query, `RETURNING "User".id, "User".first_name, "User".last_name `) {
 		t.Errorf("query mismatch\nexpected:\n'%v'\n actual:\n'%v'", expected, query)
 	}
 }