internal static bool CanLift(SqlSource source, HashSet <SqlAlias> aliasesForLifting, HashSet <SqlExpression> liftedExpressions) { SelectionLifter v = new SelectionLifter(false, aliasesForLifting, liftedExpressions); v.VisitSource(source); return(v.CanLiftAll); }
internal static List <List <SqlColumn> > Lift(SqlSource source, HashSet <SqlAlias> aliasesForLifting, HashSet <SqlExpression> liftedExpressions) { SelectionLifter v = new SelectionLifter(true, aliasesForLifting, liftedExpressions); v.VisitSource(source); return(v.Lifted); }