> ## Documentation Index
> Fetch the complete documentation index at: https://private-7c7dfe99-fix-nav-issues.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# 字典源

> 字典源类型配置

export const ExperimentalBadge = () => {
  return <div className="experimentalBadge">
            <div className="experimentalIcon">
            <svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
                <path strokeWidth="1.25" d="M5.5 2H10.5" stroke="currentColor" strokeLinecap="round" strokeLinejoin="round" />
                <path strokeWidth="1.25" d="M9.50015 2V6.19625L13.4283 12.7425C13.4738 12.8183 13.4985 12.9049 13.4996 12.9934C13.5008 13.0818 13.4785 13.169 13.435 13.246C13.3914 13.323 13.3283 13.3871 13.2519 13.4317C13.1755 13.4764 13.0886 13.4999 13.0002 13.5H3.00015C2.91164 13.5 2.8247 13.4766 2.74822 13.432C2.67174 13.3874 2.60847 13.3233 2.56487 13.2463C2.52126 13.1693 2.49889 13.082 2.50004 12.9935C2.50119 12.905 2.52582 12.8184 2.5714 12.7425L6.50015 6.19625V2" stroke="currentColor" strokeLinecap="round" strokeLinejoin="round" />
                <path strokeWidth="1.25" d="M4.47656 9.56754C5.30344 9.41254 6.47656 9.47942 7.99969 10.25C10.0153 11.2707 11.4216 11.0569 12.2184 10.7282" stroke="currentColor" strokeLinecap="round" strokeLinejoin="round" />
            </svg>
        </div>
            Experimental feature. <u><a href="/docs/beta-and-experimental-features#experimental-features">Learn more.</a></u>
        </div>;
};

export const CloudNotSupportedBadge = () => {
  return <div className="cloudNotSupportedBadge">
            <div className="cloudNotSupportedIcon">
            <svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
                <path strokeWidth="1.5" d="M6.33366 12.6666L12.3739 12.6667C13.6593 12.6667 14.7073 11.6187 14.7073 10.3334C14.7073 9.04804 13.6593 8.00003 12.3739 8.00003C12.3739 8.00003 12.3337 7.66659 12.0003 7.33325M10.667 5.33322C8.00033 2.33325 4.45395 4.78537 4.14195 6.68203C2.55728 6.7627 1.29395 8.06203 1.29395 9.6667C1.29395 11.3234 2.66699 12.6666 4.00033 12.6666" stroke="currentColor" strokeLinecap="round" strokeLinejoin="round" />
                <path strokeWidth="1.5" d="M2.66699 14L12.0003 4.66663" stroke="currentColor" strokeLinecap="round" strokeLinejoin="round" />
            </svg>

        </div>
            Not supported in ClickHouse Cloud
        </div>;
};

<div id="dictionary-sources">
  ## 语法
</div>

<Tip>
  如果您在 ClickHouse Cloud 中使用字典，请使用 DDL 查询选项创建字典，并以 `default` 用户创建。
  此外，请在 [Cloud 兼容性指南](/zh/products/cloud/guides/cloud-compatibility) 中确认受支持的字典源列表。
</Tip>

字典可通过多种不同的源接入 ClickHouse。
源可在配置文件的 `source` 部分中配置，也可通过 DDL 语句中的 `SOURCE` 子句指定。

<Tabs>
  <Tab title="DDL">
    ```sql theme={null}
    CREATE DICTIONARY dict_name (...)
    ...
    SOURCE(SOURCE_TYPE(param1 val1 ... paramN valN)) -- 源配置
    ...
    ```
  </Tab>

  <Tab title="配置文件">
    ```xml theme={null}
    <clickhouse>
      <dictionary>
        ...
        <source>
          <source_type>
            <!-- 源配置 -->
          </source_type>
        </source>
        ...
      </dictionary>
      ...
    </clickhouse>
    ```
  </Tab>
</Tabs>

<br />

<div id="supported-dictionary-sources">
  ## 支持的字典源
</div>

支持以下源类型 (`SOURCE_TYPE`/`source_type`) ：

* [本地文件](/zh/reference/statements/create/dictionary/sources/local-file)
* [可执行文件](/zh/reference/statements/create/dictionary/sources/executable-file)
* [可执行池](/zh/reference/statements/create/dictionary/sources/executable-pool)
* [HTTP(S)](/zh/reference/statements/create/dictionary/sources/http)
* DBMS
  * [ODBC](/zh/reference/statements/create/dictionary/sources/odbc)
  * [MySQL](/zh/reference/statements/create/dictionary/sources/mysql)
  * [ClickHouse](/zh/reference/statements/create/dictionary/sources/clickhouse)
  * [MongoDB](/zh/reference/statements/create/dictionary/sources/mongodb)
  * [Redis](/zh/reference/statements/create/dictionary/sources/redis)
  * [Cassandra](/zh/reference/statements/create/dictionary/sources/cassandra)
  * [PostgreSQL](/zh/reference/statements/create/dictionary/sources/postgresql)
  * [YTsaurus](/zh/reference/statements/create/dictionary/sources/ytsaurus)
* [YAMLRegExpTree](/zh/reference/statements/create/dictionary/sources/yamlregexptree)
* [Null](/zh/reference/statements/create/dictionary/sources/null)

对于 [本地文件](/zh/reference/statements/create/dictionary/sources/local-file)、[可执行文件](/zh/reference/statements/create/dictionary/sources/executable-file)、[HTTP(s)](/zh/reference/statements/create/dictionary/sources/http)、[ClickHouse](/zh/reference/statements/create/dictionary/sources/clickhouse) 这几种字典源类型，
可以使用可选设置：

<Tabs>
  <Tab title="DDL">
    ```sql highlight={2} theme={null}
    SOURCE(FILE(path './user_files/os.tsv' format 'TabSeparated'))
    SETTINGS(format_csv_allow_single_quotes = 0)
    ```
  </Tab>

  <Tab title="配置文件">
    ```xml highlight={7} theme={null}
    <source>
      <file>
        <path>/opt/dictionaries/os.tsv</path>
        <format>TabSeparated</format>
      </file>
      <settings>
          <format_csv_allow_single_quotes>0</format_csv_allow_single_quotes>
      </settings>
    </source>
    ```
  </Tab>
</Tabs>