| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
|---|---|---|---|---|---|---|---|---|---|
| 1 | PRIMARY | contacts | ref | idtypestructure, country, publish | idtypestructure | 18 | const | 15 | Using index condition; Using where; Using filesort |
| 2 | MATERIALIZED | contact_classification | ref | PRIMARY, idclassification | idclassification | 4 | const | 4 | Using index |