[file-format] add enable_text_validate_utf8 doc (#1960)

docs/lakehouse/file-formats/text.md

@@ -65,3 +65,21 @@ This document introduces the support for reading and writing text file formats i
 
   Import functionality supports JSON formats. See the import documentation for details.
 
+## Character Set
+
+Currently, Doris only supports the UTF-8 character set encoding. However, some data, such as the data in Hive Text-formatted tables, may contain content encoded in non-UTF-8 encoding, which will cause reading failures and result in the following error:
+
+```text
+Only support csv data in utf8 codec
+```
+
+In this case, you can set the session variable as follows:
+
+```text
+SET enable_text_validate_utf8 = false
+```
+
+This will ignore the UTF-8 encoding check, allowing you to read this content. Note that this parameter is only used to skip the check, and non-UTF-8 encoded content will still be displayed as garbled text.
+
+This parameter has been supported since version 3.0.4.
+

i18n/zh-CN/docusaurus-plugin-content-docs/current/lakehouse/file-formats/text.md

@@ -72,3 +72,20 @@ under the License.
 
   导入功能支持的 JSON 格式，详见导入相关文档。
 
+## 字符集
+
+Doris 目前仅支持 UTF-8 编码的字符集。而某些数据，如 Hive Text 格式表中的数据会包含非 UFT-8 编码的内容，会导致读取失败，并报错：
+
+```text
+Only support csv data in utf8 codec
+```
+
+此时，可以通过设置会话变量：
+
+```sql
+SET enable_text_validate_utf8 = false
+```
+
+来忽略 UFT-8 编码检查，以便能够读取这些内容。注意，这个参数仅用于忽略检查，非 UTF-8 编码的内容仍会显示为乱码。
+
+此参数自 3.0.4 版本支持。