| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
|---|---|---|---|---|---|---|---|---|---|
| 1 | SIMPLE | classifications | const | PRIMARY | PRIMARY | 4 | const | 1 | Using index; Using temporary; Using filesort |
| 1 | SIMPLE | contact_classification | ref | PRIMARY, idclassification | idclassification | 4 | const | 55 | Using where; Using index |
| 1 | SIMPLE | contacts | eq_ref | PRIMARY, publish | PRIMARY | 4 | theatreok_dev.contact_classification.idcontact | 1 | Using where |