{
    'type' => 'Limit',
    'estimated_startup_cost' => 0,
    'estimated_total_cost' => 0.01,
    'estimated_rows' => 1,
    'estimated_row_width' => 4,
    'sub_nodes' => [
    {
        'scan_on' => {
            'table_name' => 'test',
        },
        'estimated_startup_cost' => '0',
        'estimated_rows' => '1000',
        'type' => 'Seq Scan',
        'estimated_total_cost' => '14',
        'estimated_row_width' => '4',
    }
    ]
}
