Re: Discuss New Syntax Convention

[廖兰宇]

Yes, columnWrapper in this issue is no longer needed.
 
 
------------------ Original ------------------
From: &nbsp;"Eric&nbsp;Pai"<ericpa...@hotmail.com&gt;;
Date: &nbsp;Thu, May 12, 2022 03:38 PM
To: &nbsp;"dev"<dev@iotdb.apache.org&gt;; 

Subject: &nbsp;Re: Discuss New Syntax Convention

&nbsp;

Good work. After this patch is applied, could this 
issue(https://github.com/apache/iotdb/pull/5760) be solved properly?

在 2022/5/12 15:22，“廖兰宇”<181250...@smail.nju.edu.cn&gt; 写入:

&nbsp;&nbsp;&nbsp; Hi everybody,
&nbsp;&nbsp;&nbsp; We defined some complex syntax in ordered to be compatible 
with the older version. We are trying to update the Syntax Convention Part in 
the next version of IoTDB. Below is a list of changes between new Syntax 
Convention and old Syntax Convention.&amp;nbsp;
&nbsp;&nbsp;&nbsp; Change list:
&nbsp;&nbsp;&nbsp; 1. In quoted identifier, ` should be written as `` instead 
of \`. Also, in quoted identifier, ‘ and “ needs no special treatment and need 
not be doubled or escaped.
&nbsp;&nbsp;&nbsp; 2. Identifier consists of digit is not allowed now. If you 
want to use 111 as an identifier, please quote it with ``, like `111`. ` will 
be a part of the quoted identifier, which means `identifier1` is not the same 
as identifier1.
&nbsp;&nbsp;&nbsp; 3. Node name can not be quoted with ‘’ or “” now. If you 
want to use node name that contains special characters(including .), please 
quote it with ``.
&nbsp;&nbsp;&nbsp; 4. String in IoTDB will not be unescaped. In the older 
version, if you insert data of Text type using SQL, it will be unescaped.
&nbsp;&nbsp;&nbsp; 5. Alias can be both identifier and String now.
&nbsp;&nbsp;&nbsp; 6. Role and User are identifiers now.
&nbsp;&nbsp;&nbsp; More details can be found at 
https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fapache-iotdb.feishu.cn%2Fdocs%2FdoccnjsAnItPKK6Wa80dI2dvykf%23&amp;amp;data=05%7C01%7C%7C9fac2e5807b044dc4ca908da33e822b6%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637879369382944586%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;amp;sdata=%2BgEoBK9Sxg9zOI%2Far3PIbQ7q%2BUjZUI3Tu4X%2FC%2FAmW9o%3D&amp;amp;reserved=0
&nbsp;&nbsp;&nbsp; Any comments would be much appreciated.
&nbsp;&nbsp;&nbsp; Best,
&nbsp;&nbsp;&nbsp; ------------------------------------
&nbsp;&nbsp;&nbsp; Lanyu Liao
&nbsp;&nbsp;&nbsp; School of Software, NanJing University


&nbsp;&nbsp;&nbsp; 廖兰宇
&nbsp;&nbsp;&nbsp; 南京大学 软件学院