Support parsing openGauss CREATE sql

[FlyingZC]

Background

Hi community,

ShardingSphere parser engine helps users parse a SQL to get the AST (Abstract Syntax Tree) and visit this tree to get SQLStatement (Java Object). Currently, we are planning to enhance the support for openGauss SQL parsing in ShardingSphere.

More details: https://shardingsphere.apache.org/document/current/en/reference/sharding/parse/

Task

This issue is to support more openGauss sql parse, as follows:

 CREATE RESOURCE LABEL mask_lb1 ADD COLUMN(tb_for_masking.col1);

--创建资源标签标记敏感列col2

 CREATE RESOURCE LABEL mask_lb2 ADD COLUMN(tb_for_masking.col2);

--对访问敏感列col1的操作创建脱敏策略

 CREATE MASKING POLICY maskpol1 maskall ON LABEL(mask_lb1);

--为脱敏策略maskpol1添加描述

 ALTER MASKING POLICY maskpol1 COMMENTS 'masking policy for tb_for_masking.col1';

--修改脱敏策略maskpol1，新增一项脱敏方式

 ALTER MASKING POLICY maskpol1 ADD randommasking ON LABEL(mask_lb2);

--修改脱敏策略maskpol1，移除一项脱敏方式

Process

1. First confirm that this is a correct openGauss sql syntax, if not please leave a message under the issue and ignore it;
2. Compare SQL definitions in Official SQL Doc and ShardingSphere SQL Doc;
3. If there is any difference in ShardingSphere SQL Doc, please correct them by referring to the Official SQL Doc;
4. Run mvn install the current_file_module;
5. Check whether there are any exceptions. If indeed, please fix them. (Especially xxxVisitor.class);
6. Add new corresponding SQL case in SQL Cases and expected parsed result in Expected Statement XML;
7. Run SQLParserParameterizedTest to make sure no exceptions.

Relevant Skills

1. Master JAVA language
2. Have a basic understanding of Antlr g4 file
3. Be familiar with openGauss SQLs

[github-actions[bot]]

There hasn't been any activity on this issue recently, and in order to prioritize active issues, it will be marked as stale.

[github-actions[bot]]

There hasn't been any activity on this issue recently, and in order to prioritize active issues, it will be marked as stale.