use insert ignore when we don't care about ID
use insert ignore when we don't care about ID

should we use delayed insert instead?

atk4/atk4,atk4/atk4,samratcis/atk4,svisystem/atk4,svisystem/atk4,samratcis/atk4,svisystem/atk4,xepan/atk4,atk4/atk4,xepan/atk4,xepan/atk4,samratcis/atk4,atk4/atk4