presto-main/src/main/java/io/prestosql/operator/project/PageFieldsToInputParametersRewriter.java/Visitor/visitLambda
class Visitor:        @Override
        public RowExpression visitLambda(LambdaDefinitionExpression lambda, Void context)
        {
            return new LambdaDefinitionExpression(
                    lambda.getArgumentTypes(),
                    lambda.getArguments(),
                    lambda.getBody().accept(this, context));
        }