{
    "shipping_tablerate": {
        "column": {
            "pk": true,
            "website_id": true,
            "dest_country_id": true,
            "dest_region_id": true,
            "dest_zip": true,
            "condition_name": true,
            "condition_value": true,
            "price": true,
            "cost": true
        },
        "constraint": {
            "PRIMARY": true,
            "UNQ_D60821CDB2AFACEE1566CFC02D0D4CAA": true
        }
    },
    "salesrule": {
        "column": {
            "simple_free_shipping": true
        }
    },
    "sales_order_item": {
        "column": {
            "free_shipping": true
        }
    },
    "quote_address": {
        "column": {
            "free_shipping": true
        }
    },
    "quote_item": {
        "column": {
            "free_shipping": true
        }
    },
    "quote_address_item": {
        "column": {
            "free_shipping": true
        }
    }
}