Ver originalSELECT sbc.value,count(*)FROM(SELECT `content_field_l1_lista`.`field_l1_lista_value` as valueFROM content_field_l1_listaUNION ALL SELECT `content_field_l2_lista`.`field_l2_lista_value` as valueFROM content_field_l2_listaUNION ALL SELECT `content_field_l3_lista`.`field_l3_lista_value` as valueFROM content_field_l3_lista) as sbcGROUP BY sbc.valueORDER BY COUNT( * ) DESC;