* `Field(primary_key=True)`, SQLModel’e `id`’nin SQL veritabanındaki **primary key** olduğunu söyler (SQL primary key’leri hakkında daha fazlasını SQLModel dokümantasyonunda öğrenebilirsiniz).

It brings the same **developer experience** of building apps with FastAPI to **deploying** them to the cloud. 🎉

FastAPI Cloud is the primary sponsor and funding provider for the *FastAPI and friends* open source projects. ✨

#### Deploy to other cloud providers { #deploy-to-other-cloud-providers }

	if operand.Right != nil ||
		operand.Left.Right != nil ||
		operand.Left.Left.Negated != nil ||
		operand.Left.Left.Primary.JPathExpr == nil {
		return "", false
	}

	// Check if path expression ends in a key
	jpath := operand.Left.Left.Primary.JPathExpr
	n := len(jpath.PathExpr)
	if n > 0 && jpath.PathExpr[n-1].Key == nil {
		return "", false
	}
	ps := jpath.String()

    注意：我們在主鍵欄位使用 `int | None`，這樣在 Python 程式碼中我們可以「在沒有 `id` 的情況下建立物件」（`id=None`），假設資料庫在儲存時會「自動產生」。SQLModel 瞭解資料庫會提供 `id`，並且在資料庫綱要中「將該欄位定義為非空的 `INTEGER`」。詳情請見 [SQLModel 文件：主鍵](https://sqlmodel.tiangolo.com/tutorial/create-db-and-table/#primary-key-id)。

* `Field(index=True)` 告訴 SQLModel 應為此欄位建立「SQL 索引」，以便在用此欄位過濾讀取資料時更快查詢。

    SQLModel 會知道宣告為 `str` 的欄位在 SQL 中會是 `TEXT`（或 `VARCHAR`，依資料庫而定）。

### 建立引擎 { #create-an-engine }

 * <p><b>About NetBIOS:</b> The NetBIOS name
 * service is a dynamic distributed service that allows hosts to resolve
 * names by broadcasting a query, directing queries to a server such as
 * Samba or WINS. NetBIOS is currently the primary networking layer for
 * providing name service, datagram service, and session service to the
 * Microsoft Windows platform. A NetBIOS name can be 15 characters long
 * and hosts usually registers several names on the network. From a

tr:nth-of-type(odd) {\n  background-color: rgba(0, 0, 0, 0.05);\n}\n\n.table-hover tbody tr:hover {\n  color: #212529;\n  background-color: rgba(0, 0, 0, 0.075);\n}\n\n.table-primary,\n.table-primary > th,\n.table-primary > td {\n  background-color: #b8daff;\n}\n\n.table-primary th,\n.table-primary td,\n.table-primary thead th,\n.table-primary tbody + tbody {\n  border-color: #7abaff;\n}\n\n.table-hover .table-primary:hover {\n  background-color: #9fcdff;\n}\n\n.table-hover .table-primary:hover > td,\n.table-hover...

    **注意：** 我们为主键字段使用 `int | None`，这样在 Python 代码中我们可以在没有 `id`（`id=None`）的情况下创建对象，并假定数据库在保存时会生成它。SQLModel 会理解数据库会提供 `id`，并在数据库模式中将该列定义为非空的 `INTEGER`。详见 [SQLModel 关于主键的文档](https://sqlmodel.tiangolo.com/tutorial/create-db-and-table/#primary-key-id)。

* `Field(index=True)` 会告诉 SQLModel 应该为此列创建一个 **SQL 索引**，这样在读取按此列过滤的数据时，程序能在数据库中进行更快的查找。

    SQLModel 会知道声明为 `str` 的内容将是类型为 `TEXT`（或 `VARCHAR`，具体取决于数据库）的 SQL 列。

### 创建引擎（Engine） { #create-an-engine }

  network plugins which was first widely noticed in 1.16 (though some users saw it
  earlier than that, possibly only with specific network plugins). If you were previously
  using ethtool to disable checksum offload on your primary network interface, you should
  now be able to stop doing that. ([#92035](https://github.com/kubernetes/kubernetes/pull/92035), [@danwinship](https://github.com/danwinship)) [SIG Network and Node]

    response = client.get("/openapi.json")
    assert response.status_code == status.HTTP_200_OK
    actual_schema = response.json()
    assert (
        len(actual_schema["paths"]["/"]["get"]["parameters"]) == 1
    )  # primary goal of this test
    assert actual_schema == snapshot(
        {
            "components": {
                "schemas": {
                    "HTTPValidationError": {
                        "properties": {

            }
        }
    }

    /** Policy information level for audit events. */
    public static final int POLICY_INFO_AUDIT_EVENTS = 2;
    /** Policy information level for primary domain. */
    public static final int POLICY_INFO_PRIMARY_DOMAIN = 3;
    /** Policy information level for account domain. */
    public static final int POLICY_INFO_ACCOUNT_DOMAIN = 5;