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Posted to notifications@shardingsphere.apache.org by "FlyingZC (via GitHub)" <gi...@apache.org> on 2023/08/02 10:06:17 UTC

[GitHub] [shardingsphere] FlyingZC opened a new issue, #27863: Support parsing openGauss ALTER SCHEMA sql

FlyingZC opened a new issue, #27863:
URL: https://github.com/apache/shardingsphere/issues/27863

   # 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:
   ```sql
   ALTER SCHEMA schema_name 
       [ [DEFAULT] CHARACTER SET | CHARSET [ = ] default_charset ] [ [DEFAULT] COLLATE [ = ] default_collation ];
   ```
   
   ```sql
    ALTER SCHEMA ds_new CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
   
   --删除用户jack和模式ds_new。
   
   ```
   
   ```sql
   <checkitem id="10010" name="CheckCPU">
   <title>
   <zh>检查CPU占用率</zh>
   <en>Check CPU Idle and I/O wait</en>
   </title>
   <threshold>
   StandardCPUIdle=30;
   ```
   
   ```sql
   CREATE USER joe WITH PASSWORD 'XXXXXXXXX' VALID BEGIN '2015-10-10 08:00:00' VALID UNTIL '2016-10-10 08:00:00';
   ```
   
   ```sql
   ALTER USER joe WITH VALID BEGIN '2016-11-10 08:00:00' VALID UNTIL '2017-11-10 08:00:00';
   ```
   
   # 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


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[GitHub] [shardingsphere] github-actions[bot] commented on issue #27863: Support parsing openGauss ALTER SCHEMA sql

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27863:
URL: https://github.com/apache/shardingsphere/issues/27863#issuecomment-1703265144

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


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Re: [I] Support parsing openGauss ALTER SCHEMA sql [shardingsphere]

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27863:
URL: https://github.com/apache/shardingsphere/issues/27863#issuecomment-1783911070

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


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Re: [I] Support parsing openGauss ALTER SCHEMA sql [shardingsphere]

Posted by "FlyingZC (via GitHub)" <gi...@apache.org>.
FlyingZC closed issue #27863: Support parsing openGauss ALTER SCHEMA sql
URL: https://github.com/apache/shardingsphere/issues/27863


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