name: sale
columns:
    id: id
    concept: concept
    quantity: quantity
    price: price
    discount: discount
    reserved: reserved
    isPicked: is picked
    created: created
    originalQuantity: original quantity
    itemFk: item
    ticketFk: ticket
    saleFk: sale
    priceFixed: price fixed
    isPriceFixed: has fixed price
    isAdded: added
    total: total