idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
1SIMPLEdb2_notaNULLreffk_db2_nota_db2_bollettario1_idx,fk_db2_nota_db0_ente1_idxfk_db2_nota_db2_bollettario1_idx8const1100.00Using index condition; Using where