https://preprod.theatre-contemporain.net/spectacles/L-Oiseau-migrateur/?path=spectacles%2FL-Oiseau-migrateur

id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE schedules index_merge idspectacle_2, date, idcontact idcontact, date 5, 3 1 Using intersect(idcontact, date); Using where