sortlist
sortlist(list);
%type sortlist {ExprList*}
%destructor sortlist {sqliteExprListDelete($$);}
orderby_opt(A) ::= ORDER BY sortlist(X). {A = X;}
sortlist(A) ::= sortlist(X) COMMA sortitem(Y) collate(C) sortorder(Z). {
sortlist(A) ::= sortitem(Y) collate(C) sortorder(Z). {