presto-main/src/main/java/io/prestosql/sql/planner/iterative/rule/PruneOffsetColumns.java/PruneOffsetColumns/pushDownProjectOff
class PruneOffsetColumns:    @Override
    protected Optional<PlanNode> pushDownProjectOff(PlanNodeIdAllocator idAllocator, OffsetNode offsetNode, Set<Symbol> referencedOutputs)
    {
        return restrictChildOutputs(idAllocator, offsetNode, referencedOutputs);
    }