FlyingZC opened a new issue, #26985: URL: https://github.com/apache/shardingsphere/issues/26985
# 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 ALTER TABLE product_information MODIFY (min_price DEFAULT 10); ``` ```sql ALTER TABLE quarterly_regional_sales MODIFY SUBPARTITION q1_1999_southeast ADD VALUES ('KS'); ``` ```sql ALTER TABLE quarterly_regional_sales ADD PARTITION q1_2000 VALUES LESS THAN (TO_DATE('1-APR-2000','DD-MON-YYYY')) STORAGE (INITIAL 20K NEXT 20K) TABLESPACE ts3 NOLOGGING ( SUBPARTITION q1_2000_northwest VALUES ('OR', 'WA'), SUBPARTITION q1_2000_southwest VALUES ('AZ', 'UT', 'NM'), SUBPARTITION q1_2000_northeast VALUES ('NY', 'VM', 'NJ'), SUBPARTITION q1_2000_southeast VALUES ('FL', 'GA'), SUBPARTITION q1_2000_northcentral VALUES ('SD', 'WI'), SUBPARTITION q1_2000_southcentral VALUES ('OK', 'TX') ); ``` ```sql ALTER TABLE quarterly_regional_sales MODIFY SUBPARTITION q1_1999_southeast DROP VALUES ('KS'); ``` ```sql ALTER TABLE sales ADD PARTITION jan99 VALUES LESS THAN ( '01-FEB-1999' ) TABLESPACE tsx; ``` # 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]
