[GitHub] [shardingsphere] FlyingZC opened a new issue, #27127: Support parsing Oracle CREATE VIEW sql

["FlyingZC (via GitHub)" <gi...@apache.org>]

FlyingZC opened a new issue, #27127:
URL: https://github.com/apache/shardingsphere/issues/27127

   # 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 own_salary AS 
       SELECT last_name, salary 
       FROM employees 
       WHERE last_name = USER;
   ```
   
   ```sql
   CREATE VIEW sales_staff AS
         SELECT empno, ename, deptno
         FROM emp
         WHERE deptno = 10
       WITH CHECK OPTION CONSTRAINT sales_staff_cnst;
   ```
   
   ```sql
   CREATE VIEW sales_staff AS
       SELECT empno, ename
       FROM emp
       WHERE deptno = 10
       WITH CHECK OPTION CONSTRAINT sales_staff_cnst;
   ```
   
   ```sql
   CREATE VIEW sales_view AS
   SELECT
    prod_name product, country_name country, channel_id channel,
    SUBSTR(calendar_quarter_desc, 6,2) quarter,
    SUM(amount_sold) amount_sold, SUM(quantity_sold) quantity_sold 
   FROM sales, times, customers, countries, products
   WHERE sales.time_id = times.time_id AND
     sales.prod_id = products.prod_id AND
     sales.cust_id = customers.cust_id AND
     customers.country_id = countries.country_id
   GROUP BY prod_name, country_name, channel_id,
    SUBSTR(calendar_quarter_desc, 6, 2);
   ```
   
   ```sql
   CREATE VIEW sales_view2 AS
   SELECT country_name country, prod_name product, calendar_year year,
     calendar_month_name month, SUM(amount_sold) sale, COUNT(amount_sold) cnt
   FROM sales, times, customers, countries, products
   WHERE sales.time_id = times.time_id AND
         sales.prod_id = products.prod_id AND
         sales.cust_id = customers.cust_id AND
         customers.country_id = countries.country_id
   GROUP BY country_name, prod_name, calendar_year, calendar_month_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] github-actions[bot] commented on issue #27127: Support parsing Oracle CREATE VIEW sql

["github-actions[bot] (via GitHub)" <gi...@apache.org>]

github-actions[bot] commented on issue #27127:
URL: https://github.com/apache/shardingsphere/issues/27127#issuecomment-1676080505

   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]

["strongduanmu (via GitHub)" <gi...@apache.org>]

strongduanmu closed issue #27127: Support parsing Oracle CREATE VIEW sql
URL: https://github.com/apache/shardingsphere/issues/27127


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

["github-actions[bot] (via GitHub)" <gi...@apache.org>]

github-actions[bot] commented on issue #27127:
URL: https://github.com/apache/shardingsphere/issues/27127#issuecomment-1784212826

   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]

["zihaoAK47 (via GitHub)" <gi...@apache.org>]

zihaoAK47 commented on issue #27127:
URL: https://github.com/apache/shardingsphere/issues/27127#issuecomment-1822303962

   Hi please assign the questions to me. Thank you


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