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Posted to notifications@shardingsphere.apache.org by "FlyingZC (via GitHub)" <gi...@apache.org> on 2023/07/13 06:24:14 UTC

[GitHub] [shardingsphere] FlyingZC opened a new issue, #27020: Support parsing Oracle CONVERT TO sql

FlyingZC opened a new issue, #27020:
URL: https://github.com/apache/shardingsphere/issues/27020

   # 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
   CONVERT TO ( PHYSICAL | SNAPSHOT ) STANDBY
   ```
   
   ```sql
   CREATE CLUSTER language (cust_language VARCHAR2(3))
      SIZE 512 HASHKEYS 10
      STORAGE (INITIAL 100k next 50k);
   ```
   
   ```sql
   CREATE CLUSTER address
      (postal_code NUMBER, country_id CHAR(2))
      HASHKEYS 20
      HASH IS MOD(postal_code + country_id, 101);
   ```
   
   ```sql
   CREATE CLUSTER employees_departments_cluster
      (department_id NUMBER(4))
   SIZE 512;
   ```
   
   ```sql
   CREATE CLUSTER employees_departments_cluster
      (department_id NUMBER(4))
   SIZE 8192 HASHKEYS 100;
   ```
   
   # 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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Re: [I] Support parsing Oracle CONVERT TO sql [shardingsphere]

Posted by "FlyingZC (via GitHub)" <gi...@apache.org>.
FlyingZC closed issue #27020: Support parsing Oracle CONVERT TO sql
URL: https://github.com/apache/shardingsphere/issues/27020


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Re: [I] Support parsing Oracle CONVERT TO sql [shardingsphere]

Posted by "zihaoAK47 (via GitHub)" <gi...@apache.org>.
zihaoAK47 commented on issue #27020:
URL: https://github.com/apache/shardingsphere/issues/27020#issuecomment-1840482617

   error sql:
   SQL> CONVERT TO ( PHYSICAL | SNAPSHOT ) STANDBY
   SP2-0734: unknown command beginning "CONVERT TO..." - rest of line ignored.


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Re: [I] Support parsing Oracle CONVERT TO sql [shardingsphere]

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27020:
URL: https://github.com/apache/shardingsphere/issues/27020#issuecomment-1785955360

   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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[GitHub] [shardingsphere] github-actions[bot] commented on issue #27020: Support parsing Oracle CONVERT TO sql

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27020:
URL: https://github.com/apache/shardingsphere/issues/27020#issuecomment-1676081320

   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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