BePPPower commented on code in PR #2233:
URL: https://github.com/apache/doris-website/pull/2233#discussion_r2011604432
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i18n/zh-CN/docusaurus-plugin-content-docs/current/data-operate/export/export-best-practice.md:
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@@ -0,0 +1,102 @@
+---
+{
+ "title": "最佳实践",
+ "language": "zh-CN"
+}
+---
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+本文档主要用于介绍在进行数据导出操作中，如何判断资源利用是否合理，以及如何调整资源利用率已达到更好的数据导出效率。
+
+## SELECT INTO OUTFILE
+
+1. 开启并行导出
+
+ `SELECT INTO OUTFILE` 返回的行数即代表并行的 Writer 数量。Writer
的数量越多，则导出的并发度越高，但写出的文件数量也会越多。如果发现只有一个 Writer，则可以尝试开启并行导出功能。
+
+ `SET enable_parallel_outfile=true`
+
+ 开启后，`SELECT INTO OUTFILE` 操作为根据查询的并行度来生成对应数量的 Writer。查询并行度由会话变量
`parallel_pipeline_task_num` 控制。默认为单 BE CPU 核数的一半。
+
+ 比如在一个 3 BE 节点的集群中，每个节点的 CPU 核数为 8。则开启并行导出情况下，会产生（4*3=）12 个 Writer。
+
+ 注意，并不是所有查询都能够开启并行导出，比如查询中包含全局排序、聚合语义时，则无法使用并行导出。如：
Review Comment:
```suggestion
注意，即使开启了并行导出功能，也不是所有查询都能够并行导出，比如查询中包含全局排序、聚合语义时，则是无法并行导出的。如：
```
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