https://preprod.theatre-contemporain.net/spectacles/Et-puis-voila/lesdates/?path=spectacles%2FEt-puis-voila%2Flesdates%2F

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