FlyingZC opened a new issue, #27138: URL: https://github.com/apache/shardingsphere/issues/27138
# 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 DROP TABLESPACE users INCLUDING CONTENTS AND DATAFILES; ``` ```sql DROP TABLESPACE users INCLUDING CONTENTS; ``` ```sql DROP TYPE BODY data_typ1; ``` ```sql DROP TYPE employee_typ FORCE; -- if previously created CREATE TYPE employee_typ UNDER person_typ ( emp_id NUMBER, mgr VARCHAR2(30)); ``` ```sql DROP TYPE location_typ FORCE; -- above necessary if you have previously created object CREATE OR REPLACE TYPE location_typ AS OBJECT ( building_no NUMBER, city VARCHAR2(40), ORDER MEMBER FUNCTION match (l location_typ) RETURN INTEGER );/ CREATE OR REPLACE TYPE BODY location_typ AS ORDER MEMBER FUNCTION match (l location_typ) RETURN INTEGER IS BEGIN IF building_no < l.building_no THEN RETURN -1; -- any negative number will do ELSIF building_no > l.building_no THEN RETURN 1; -- any positive number will do ELSE RETURN 0; END IF; END; END;/ -- invoking match method DECLARE loc location_typ; secloc location_typ; a number; BEGIN loc :=NEW location_typ(300, 'San Francisco'); secloc :=NEW location_typ(200, 'Redwood Shores'); a := loc.match(secloc); DBMS_OUTPUT.PUT_LINE('order (1 is greater, -1 is lesser):' ||a); -- prints order:1 END; ``` # 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]
