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jiafeng.zhang c02625efa9 [refactor][doc] Doris official website new version documentation (#8757 )

I started a discussion on this before, you can check it in the mail group

https://lists.apache.org/thread/o770bc3k623kyfks2mzkt21qsc4g6328

In order to facilitate everyone to organize the documents, I created a new-docs directory under the incubator-doris directory. The new directory structure is below this. I just created a directory structure here, which needs to be rearranged.

In the data import scenario, in order to take into account the viewing habits of previous users, the import is organized in two ways:

1. According to the usage scenario: This will give users clearer guidance. For example, the user is the data source of kafka, then the user can directly select the routine to load
2. According to the import method: it is the introduction of the various import methods we provided before

In order to facilitate everyone to run and debug locally, I migrated the entire .vuepress under the original document. After completion, you only need to delete the original docs directory and rename the new new-docs directory to docs. At the same time, you can also run it locally, so that you can organize documents and know the content of each document directory.

In the local debugging execution, switch to the new-docs directory and execute the following command:

````
npm install
npm run dev
````
then through the browser
http://ip:port/zh-CN
http://ip:port/en

2022-03-31 12:01:02 +08:00

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title, language

title	language
week	en

week

Description

Syntax

INT WEEK(DATE date) INT WEEK(DATE date, INT mode)

Returns the week number for date.The value of the mode argument defaults to 0. The following table describes how the mode argument works.

Mode	First day of week	Range	Week 1 is the first week …
0	Sunday	0-53	with a Sunday in this year
1	Monday	0-53	with 4 or more days this year
2	Sunday	1-53	with a Sunday in this year
3	Monday	1-53	with 4 or more days this year
4	Sunday	0-53	with 4 or more days this year
5	Monday	0-53	with a Monday in this year
6	Sunday	1-53	with 4 or more days this year
7	Monday	1-53	with a Monday in this year

The parameter is Date or Datetime type

example

mysql> select week('2020-1-1');
+------------------+
| week('2020-1-1') |
+------------------+
|                0 |
+------------------+

mysql> select week('2020-7-1',1);
+---------------------+
| week('2020-7-1', 1) |
+---------------------+
|                  27 |
+---------------------+

keyword

WEEK

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