FlyingZC opened a new issue, #27118:
URL: https://github.com/apache/shardingsphere/issues/27118

   # 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 TEMPORARY TABLESPACE lmtemp TEMPFILE '/u02/oracle/data/lmtemp01.dbf' 
        SIZE 20M REUSE
        EXTENT MANAGEMENT LOCAL UNIFORM SIZE 16M;
   ```
   
   ```sql
   CREATE TEMPORARY TABLESPACE lmtemp3 TEMPFILE '/u02/oracle/data/lmtemp301.dbf'
        SIZE 25M
        TABLESPACE GROUP group1;
   ```
   
   ```sql
   CREATE TEMPORARY TABLESPACE tbs_t1 
       TEMPFILE 'tbs_t1.f' SIZE 50m REUSE AUTOEXTEND ON
       MAXSIZE UNLIMITED
       EXTENT MANAGEMENT LOCAL UNIFORM SIZE 64K;
   
   CREATE GLOBAL TEMPORARY TABLE admin_work_area
           (startdate DATE,
            enddate DATE,
            class CHAR(20))
         ON COMMIT DELETE ROWS
         TABLESPACE tbs_t1;
   ```
   
   ```sql
   CREATE TEMPORARY TABLESPACE temp_demo
      TEMPFILE 'temp01.dbf' SIZE 5M AUTOEXTEND ON;
   ```
   
   ```sql
   CREATE TEMPORARY TABLESPACE tbs_temp_02
     TEMPFILE 'temp02.dbf' SIZE 5M AUTOEXTEND ON
     TABLESPACE GROUP tbs_grp_01;
   ```
   
   # 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


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: 
[email protected]

For queries about this service, please contact Infrastructure at:
[email protected]

Reply via email to