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Posted to notifications@shardingsphere.apache.org by "FlyingZC (via GitHub)" <gi...@apache.org> on 2023/07/13 08:12:08 UTC

[GitHub] [shardingsphere] FlyingZC opened a new issue, #27125: Support parsing Oracle CREATE VIEW sql

FlyingZC opened a new issue, #27125:
URL: https://github.com/apache/shardingsphere/issues/27125

   # 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
   CREATE VIEW emp_v AS
       SELECT empno, ename, deptno
           FROM emp;
   CREATE VIEW emp_dept_oj1 AS
       SELECT e.*, Loc, d.dname
           FROM emp_v e, dept d
               WHERE e.deptno = d.deptno (+);
   ```
   
   ```sql
   CREATE VIEW employees_50_vw AS
     SELECT employee_id, last_name, job_id, salary, commission_pct, department_id
     FROM   employees
     WHERE  department_id = 50;
   ```
   
   ```sql
   CREATE VIEW hour_ago AS
     SELECT * FROM employees
       AS OF TIMESTAMP (SYSTIMESTAMP - INTERVAL '60' MINUTE);
   ```
   
   ```sql
   CREATE VIEW hr_org_secure_view AS
      SELECT * FROM employees
      WHERE department_id = SYS_CONTEXT('hr_context', 'department_id');
   ```
   
   ```sql
   CREATE VIEW hr_verify AS 
   SELECT EMPLOYEE_ID, FIRST_NAME, LAST_NAME, EMAIL, MANAGER_ID 
   FROM EMPLOYEES;
   ```
   
   # 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] github-actions[bot] commented on issue #27125: Support parsing Oracle CREATE VIEW sql

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27125:
URL: https://github.com/apache/shardingsphere/issues/27125#issuecomment-1676080521

   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 Oracle CREATE VIEW sql [shardingsphere]

Posted by "strongduanmu (via GitHub)" <gi...@apache.org>.
strongduanmu closed issue #27125: Support parsing Oracle CREATE VIEW sql
URL: https://github.com/apache/shardingsphere/issues/27125


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Re: [I] Support parsing Oracle CREATE VIEW sql [shardingsphere]

Posted by "zihaoAK47 (via GitHub)" <gi...@apache.org>.
zihaoAK47 commented on issue #27125:
URL: https://github.com/apache/shardingsphere/issues/27125#issuecomment-1817456761

   Hi please assign the questions to me. Thank you


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Re: [I] Support parsing Oracle CREATE VIEW sql [shardingsphere]

Posted by "strongduanmu (via GitHub)" <gi...@apache.org>.
strongduanmu commented on issue #27125:
URL: https://github.com/apache/shardingsphere/issues/27125#issuecomment-1818056290

   Fixed by https://github.com/apache/shardingsphere/pull/29075


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Re: [I] Support parsing Oracle CREATE VIEW sql [shardingsphere]

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27125:
URL: https://github.com/apache/shardingsphere/issues/27125#issuecomment-1784212844

   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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