presto-main/src/main/java/io/prestosql/sql/planner/plan/IntersectNode.java/IntersectNode/replaceChildren
class IntersectNode:    @Override
    public PlanNode replaceChildren(List<PlanNode> newChildren)
    {
        return new IntersectNode(getId(), newChildren, getSymbolMapping(), getOutputSymbols());
    }