presto-main/src/main/java/io/prestosql/sql/planner/sanity/ValidateDependenciesChecker.java/ValidateDependenciesChecker/visitRemoteSource
class ValidateDependenciesChecker:        @Override
        public Void visitRemoteSource(RemoteSourceNode node, Set<Symbol> boundSymbols)
        {
            return null;
        }