FlyingZC opened a new issue, #27099: URL: https://github.com/apache/shardingsphere/issues/27099
# 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 TABLE employees_obj ( e_name VARCHAR2(100), e_number NUMBER, e_dept REF department_typ SCOPE IS departments_obj_t ); ``` ```sql CREATE TABLE foo (a NUMBER, b VARCHAR2(20)) RESULT_CACHE (MODE FORCE); ``` ```sql CREATE TABLE employees_obj ( e_name VARCHAR2(100), e_number NUMBER, e_dept REF department_typ REFERENCES departments_obj_t); ``` ```sql CREATE TABLE employees_temp AS SELECT * FROM EMPLOYEES; DECLARE a_null CHAR(1); -- Set to NULL automatically at run time BEGIN EXECUTE IMMEDIATE 'UPDATE employees_temp SET commission_pct = :x' USING a_null; END; ``` ```sql CREATE TABLE hr.admin_emp_dept PARALLEL COMPRESS AS SELECT * FROM hr.employees WHERE department_id = 10; ``` # 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]
