Explain Query (mysql)
EXPLAIN SELECT * FROM `orders` `t` WHERE `t`.`order_id`='22043942' AND `t`.`user_id`='308842' LIMIT 1
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SIMPLE | t | const | PRIMARY, idx_user_id | PRIMARY | 4 | const | 1 | 100.00 |