FlyingZC opened a new issue, #27119: URL: https://github.com/apache/shardingsphere/issues/27119
# 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 TRIGGER log_errors AFTER SERVERERROR ON DATABASE BEGIN IF (IS_SERVERERROR (1017)) THEN NULL; -- (substitute code that processes logon error) ELSE NULL; -- (substitute code that logs error code) END IF; END; ``` ```sql CREATE TEMPORARY TABLESPACE lmtemp2 TEMPFILE '/u02/oracle/data/lmtemp201.dbf' SIZE 50M TABLESPACE GROUP group1; ALTER TABLESPACE lmtemp TABLESPACE GROUP group2; ``` ```sql CREATE TRIGGER Contacts_BI BEFORE INSERT ON Contacts FOR EACH ROW BEGIN :NEW.ID := Contacts_Seq.NEXTVAL; END; ``` ```sql CREATE TRIGGER adg_logon_sync_trigger AFTER LOGON ON user.schema begin if (SYS_CONTEXT('USERENV', 'DATABASE_ROLE') IN ('PHYSICAL STANDBY')) then execute immediate 'alter session sync with primary'; end if; end; ``` ```sql CREATE TRIGGER scott.emp_permit_changes BEFORE DELETE OR INSERT OR UPDATE ON scott.emp . . . pl/sql block . . . ``` # 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]
