| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
|---|---|---|---|---|---|---|---|---|---|
| 1 | SIMPLE | advert_demand_city | ref | PRIMARY, IDX_359C57B1C73F3F55, IDX_359C57B18BAC62AF | PRIMARY | 4 | const | 1 | Using index |
| 1 | SIMPLE | t0 | eq_ref | PRIMARY | PRIMARY | 4 | tutorka_dev_cz.advert_demand_city.city_id | 1 |