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> JSONEachRowWithProgress 格式文档

# JSONEachRowWithProgress

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

<div id="description">
  ## 说明
</div>

与 [`JSONEachRow`](/zh/reference/formats/JSON/JSONEachRow)/[`JSONStringsEachRow`](/zh/reference/formats/JSON/JSONStringsEachRow) 不同的是，ClickHouse 还会以 JSON 值的形式返回进度信息。

<div id="example-usage">
  ## 使用示例
</div>

```json theme={null}
{"row":{"num":42,"str":"hello","arr":[0,1]}}
{"row":{"num":43,"str":"hello","arr":[0,1,2]}}
{"row":{"num":44,"str":"hello","arr":[0,1,2,3]}}
{"progress":{"read_rows":"3","read_bytes":"24","written_rows":"0","written_bytes":"0","total_rows_to_read":"3"}}
```

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