Fixes SQL_Relation::$dsql notice bug. Resolves #602
Fixes SQL_Relation::$dsql notice bug. Resolves #602

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