help on if condition for results = 0

hello In a panel table, I need to display every key_path even if the key_path result = 0 I have done an if condition but it doenst works could you help me please?? index="toto" sourcetype="WinRegistry" key_path="HKLM\\software\\microsoft\\windows nt\\currentversion\\xx" OR key_path="HKLM\\software\\microsoft\\windows nt\\currentversion\\yy" OR key_path="HKLM\\software\\wow6432node\\zz" | stats dc(host) as test by sourcetype key_path | eval test=if(test==0,"0", test)