idselect_typetablepartitionstypepossible_keyskeykey_lenrefrowsfilteredExtra
1SIMPLEdb2_sanzioneaccNULLreffk_db2_sanzioneacc_db0_ente1_idx,fk_db2_sanzioneacc_db2_bollettario1_idxfk_db2_sanzioneacc_db2_bollettario1_idx8const150.00Using index condition; Using where