FlyingZC opened a new issue, #27140: URL: https://github.com/apache/shardingsphere/issues/27140
# 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 TYPE person_typ FORCE; DROP TABLE person_obj_table; DROP TYPE student_typ; -- perform above drops if objects/tables created CREATE OR REPLACE TYPE person_typ AS OBJECT ( idno NUMBER, name VARCHAR2(30), phone VARCHAR2(20)) NOT FINAL;/ CREATE TABLE person_obj_table (p person_typ); ``` ```sql DROP TYPE student_typ VALIDATE -- incorrect: an instance still exists ; ``` ```sql DROP TYPE person_typ FORCE; -- above necessary if you have previously created object CREATE OR REPLACE TYPE person_typ AS OBJECT ( idno NUMBER, name VARCHAR2(30), phone VARCHAR2(20)) NOT FINAL; ``` ```sql DROP TYPE person_typ FORCE; -- if created CREATE OR REPLACE TYPE person_typ AS OBJECT ( idno NUMBER, name VARCHAR2(30), phone VARCHAR2(20), MAP MEMBER FUNCTION get_idno RETURN NUMBER, MEMBER FUNCTION show RETURN VARCHAR2) NOT FINAL; ``` ```sql ENABLE NOVALIDATE CONSTRAINT pk_time; ``` # 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]
