{
  "type": "ExternalDataSource",
  "name": "PG",
  "dataLockControlMode": "AutomaticAndManaged",
  "tables": {
    "prices": ["product_id: Number(10,0)", "price: Number(15,2)"],
    "products": {
      "nameInDataSource": "eds.public.products",
      "tableDataType": "ObjectData",
      "keyFields": ["id"],
      "presentationField": "name",
      "transactionsIsolationLevel": "ReadUncommitted",
      "fields": [
        "id: Number(10,0)",
        "name: String(150)",
        "photo: BinaryData | nullable",
        "sig: BinaryData(256,fixed) | nullable",
        {
          "name": "cost",
          "type": "Number(15,2)",
          "nameInDataSource": "cost_net",
          "flags": ["readonly"]
        }
      ]
    }
  },
  "functions": {
    "total": {
      "expression": "public.f_total(&1, &2)",
      "returns": "Number(15,2)"
    },
    "nextKey": "NEXT VALUE FOR public.seq_key"
  }
}