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Posted to notifications@shardingsphere.apache.org by "FlyingZC (via GitHub)" <gi...@apache.org> on 2023/07/13 06:14:56 UTC

[GitHub] [shardingsphere] FlyingZC opened a new issue, #26954: Support parsing Oracle ALTER DATABASE sql

FlyingZC opened a new issue, #26954:
URL: https://github.com/apache/shardingsphere/issues/26954

   # Background
   Hi community,
   This issue is for #26878.
   
   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 Oracle SQL parsing in ShardingSphere.
   
   More details:
   https://shardingsphere.apache.org/document/current/en/reference/sharding/parse/
   
   # Task
   This issue is to support more oracle sql parse, as follows:
   ```sql
   ALTER DATABASE RECOVER MANAGED STANDBY DATABASE;
   ```
   
   ```sql
   ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE 
    DISCONNECT FROM SESSION;
   ```
   
   ```sql
   ALTER DATABASE RECOVER TO LOGICAL STANDBY KEEP IDENTITY;
   ```
   
   ```sql
   ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE 
    DISCONNECT FROM SESSION;
   ```
   
   ```sql
   ALTER DATABASE RECOVER TO LOGICAL STANDBY db_name;
   ```
   
   # Process
   1. First confirm that this is a correct oracle sql syntax, if not please ignore;
   2. Compare SQL definitions in Oficial 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 Statment 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 Oracle SQLs


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[GitHub] [shardingsphere] strongduanmu commented on issue #26954: Support parsing Oracle ALTER DATABASE sql

Posted by "strongduanmu (via GitHub)" <gi...@apache.org>.
strongduanmu commented on issue #26954:
URL: https://github.com/apache/shardingsphere/issues/26954#issuecomment-1639068024

   Fixed by https://github.com/apache/shardingsphere/pull/27250


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[GitHub] [shardingsphere] zihaoAK47 commented on issue #26954: Support parsing Oracle ALTER DATABASE sql

Posted by "zihaoAK47 (via GitHub)" <gi...@apache.org>.
zihaoAK47 commented on issue #26954:
URL: https://github.com/apache/shardingsphere/issues/26954#issuecomment-1637294540

   @strongduanmu Hi mentor, please assign it to me thank you


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[GitHub] [shardingsphere] strongduanmu closed issue #26954: Support parsing Oracle ALTER DATABASE sql

Posted by "strongduanmu (via GitHub)" <gi...@apache.org>.
strongduanmu closed issue #26954: Support parsing Oracle ALTER DATABASE sql
URL: https://github.com/apache/shardingsphere/issues/26954


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