FlyingZC opened a new issue, #27080: URL: https://github.com/apache/shardingsphere/issues/27080
# 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 OR REPLACE VIEW sales_view_ref AS SELECT country_name country, prod_name prod, calendar_year year, SUM(amount_sold) sale, COUNT(amount_sold) cnt FROM sales,times,customers,countries,products WHERE sales.time_id = times.time_id AND sales.prod_id = products.prod_id AND sales.cust_id = customers.cust_id AND customers.country_id = countries.country_id AND ( customers.country_id = 52779 OR customers.country_id = 52776 ) AND ( prod_name = 'Standard Mouse' OR prod_name = 'Mouse Pad' ) GROUP BY country_name,prod_name,calendar_year; SELECT country, prod, year, sale FROM sales_view_ref ORDER BY country, prod, year; ``` ```sql CREATE PROFILE new_profile LIMIT PASSWORD_REUSE_MAX 10 PASSWORD_REUSE_TIME 30; ``` ```sql CREATE PROFILE clerk LIMIT SESSIONS_PER_USER 1 IDLE_TIME 30 CONNECT_TIME 600; CREATE USER jfee IDENTIFIED BY password DEFAULT TABLESPACE users TEMPORARY TABLESPACE temp_ts QUOTA 500K ON users PROFILE clerk; CREATE USER dcranney IDENTIFIED BY password DEFAULT TABLESPACE users TEMPORARY TABLESPACE temp_ts QUOTA unlimited ON users; CREATE USER userscott IDENTIFIED BY password; ``` ```sql CREATE PROFILE prof LIMIT FAILED_LOGIN_ATTEMPTS 10 PASSWORD_LOCK_TIME 30; ALTER USER johndoe PROFILE prof; ``` ```sql CREATE PROFILE app_user2 LIMIT FAILED_LOGIN_ATTEMPTS 5 PASSWORD_LIFE_TIME 60 PASSWORD_REUSE_TIME 60 PASSWORD_REUSE_MAX 5 PASSWORD_VERIFY_FUNCTION verify_function PASSWORD_LOCK_TIME 1/24 PASSWORD_GRACE_TIME 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]
