FlyingZC opened a new issue, #27062: URL: https://github.com/apache/shardingsphere/issues/27062
# 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 OPERATOR position_between BINDING (NUMBER, NUMBER, NUMBER) RETURN NUMBER WITH INDEX CONTEXT, SCAN CONTEXT position_im USING function_for_position_between; ``` ```sql CREATE OR REPLACE OUTLINE public_salaries FROM PRIVATE my_salaries; ``` ```sql CREATE OR REPLACE PACKAGE BODY banking AS FUNCTION balance (acct_id INTEGER) RETURN REAL IS PRAGMA AUTONOMOUS_TRANSACTION; my_bal REAL; BEGIN SELECT balance INTO my_bal FROM accounts WHERE account=acct_id; RETURN my_bal; END; -- Additional functions and packages END banking; ``` ```sql CREATE OR REPLACE FUNCTION text_length(a CLOB) RETURN NUMBER DETERMINISTIC IS BEGIN RETURN DBMS_LOB.GETLENGTH(a); END; ``` ```sql CREATE OR REPLACE PACKAGE test_package AS var1 CHAR(5); 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]
