protected NamedExpression resolve(
            String name,
            List<Attribute> input,
            Resolver resolver) {
        for (Attribute attr : input) {
            if (resolver.resolve(name, attr.name())) {
                return attr.withName(name);
            }
        }
        return null;
    }
Returns true if all its children of this query plan have been resolved.
indexr-query-opt/src/main/java/io/indexr/query/plan/logical/LogicalPlan.java