{
  "table_name": "special_price",
  "table_prefix": "spri",
  "field":[
    {
      "name":"product_id",
			"type":"varchar",
      "length":80,
		  "foreign_key": {"table": "product", "field": "product_id", "link_type": "prevent delete"}
    },
    {
      "name":"unit_price",
      "type":"double"
    },
    {
      "name":"info",
      "type":"text"
    }
  ],
  "field_change": [
    {
      "name": "unit_price",
      "old_name": [
        "price"
      ]
    }
  ]
}
