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> CustomSeparatedWithNames 格式说明文档

# CustomSeparatedWithNames

| 输入 | 输出 | 别名 |
| -- | -- | -- |
| ✔  | ✔  |    |

<div id="description">
  ## 描述
</div>

还会输出包含列名的表头行，类似于 [TabSeparatedWithNames](/zh/reference/formats/TabSeparated/TabSeparatedWithNames)。

<div id="example-usage">
  ## 示例用法
</div>

<div id="inserting-data">
  ### 插入数据
</div>

使用下面这个名为 `football.txt` 的 txt 文件：

```text theme={null}
row('date';'season';'home_team';'away_team';'home_team_goals';'away_team_goals'),row('2022-04-30';2021;'Sutton United';'Bradford City';1;4),row('2022-04-30';2021;'Swindon Town';'Barrow';2;1),row('2022-04-30';2021;'Tranmere Rovers';'Oldham Athletic';2;0),row('2022-05-02';2021;'Salford City';'Mansfield Town';2;2),row('2022-05-02';2021;'Port Vale';'Newport County';1;2),row('2022-05-07';2021;'Barrow';'Northampton Town';1;3),row('2022-05-07';2021;'Bradford City';'Carlisle United';2;0),row('2022-05-07';2021;'Bristol Rovers';'Scunthorpe United';7;0),row('2022-05-07';2021;'Exeter City';'Port Vale';0;1),row('2022-05-07';2021;'Harrogate Town A.F.C.';'Sutton United';0;2),row('2022-05-07';2021;'Hartlepool United';'Colchester United';0;2),row('2022-05-07';2021;'Leyton Orient';'Tranmere Rovers';0;1),row('2022-05-07';2021;'Mansfield Town';'Forest Green Rovers';2;2),row('2022-05-07';2021;'Newport County';'Rochdale';0;2),row('2022-05-07';2021;'Oldham Athletic';'Crawley Town';3;3),row('2022-05-07';2021;'Stevenage Borough';'Salford City';4;2),row('2022-05-07';2021;'Walsall';'Swindon Town';0;3)
```

配置自定义分隔符相关设置：

```sql theme={null}
SET format_custom_row_before_delimiter = 'row(';
SET format_custom_row_after_delimiter = ')';
SET format_custom_field_delimiter = ';';
SET format_custom_row_between_delimiter = ',';
SET format_custom_escaping_rule = 'Quoted';
```

插入数据：

```sql theme={null}
INSERT INTO football FROM INFILE 'football.txt' FORMAT CustomSeparatedWithNames;
```

<div id="reading-data">
  ### 读取数据
</div>

配置自定义分隔符相关设置：

```sql theme={null}
SET format_custom_row_before_delimiter = 'row(';
SET format_custom_row_after_delimiter = ')';
SET format_custom_field_delimiter = ';';
SET format_custom_row_between_delimiter = ',';
SET format_custom_escaping_rule = 'Quoted';
```

使用 `CustomSeparatedWithNames` 格式读取数据：

```sql theme={null}
SELECT *
FROM football
FORMAT CustomSeparatedWithNames
```

输出将以已配置的自定义格式显示：

```text theme={null}
row('date';'season';'home_team';'away_team';'home_team_goals';'away_team_goals'),row('2022-04-30';2021;'Sutton United';'Bradford City';1;4),row('2022-04-30';2021;'Swindon Town';'Barrow';2;1),row('2022-04-30';2021;'Tranmere Rovers';'Oldham Athletic';2;0),row('2022-05-02';2021;'Port Vale';'Newport County';1;2),row('2022-05-02';2021;'Salford City';'Mansfield Town';2;2),row('2022-05-07';2021;'Barrow';'Northampton Town';1;3),row('2022-05-07';2021;'Bradford City';'Carlisle United';2;0),row('2022-05-07';2021;'Bristol Rovers';'Scunthorpe United';7;0),row('2022-05-07';2021;'Exeter City';'Port Vale';0;1),row('2022-05-07';2021;'Harrogate Town A.F.C.';'Sutton United';0;2),row('2022-05-07';2021;'Hartlepool United';'Colchester United';0;2),row('2022-05-07';2021;'Leyton Orient';'Tranmere Rovers';0;1),row('2022-05-07';2021;'Mansfield Town';'Forest Green Rovers';2;2),row('2022-05-07';2021;'Newport County';'Rochdale';0;2),row('2022-05-07';2021;'Oldham Athletic';'Crawley Town';3;3),row('2022-05-07';2021;'Stevenage Borough';'Salford City';4;2),row('2022-05-07';2021;'Walsall';'Swindon Town';0;3)
```

<div id="format-settings">
  ## 格式设置
</div>

<Note>
  如果将设置 [`input_format_with_names_use_header`](/zh/reference/settings/formats#input_format_with_names_use_header) 设为 `1`，
  输入数据中的列会按列名映射到表中的列；
  如果将设置 [`input_format_skip_unknown_fields`](/zh/reference/settings/formats#input_format_skip_unknown_fields) 设为 `1`，则会跳过名称未知的列。
  否则，将跳过第一行。
</Note>