FlyingZC opened a new issue, #27053: URL: https://github.com/apache/shardingsphere/issues/27053
# 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 OPERATOR Contains BINDING (VARCHAR2, VARCHAR2) RETURN NUMBER WITH INDEX CONTEXT, SCAN CONTEXT TextIndexMethods COMPUTE ANCILLARY DATA USING TextContains; ``` ```sql CREATE OPERATOR Contains BINDING (VARCHAR2, VARCHAR2) RETURN NUMBER WITH INDEX CONTEXT, SCAN CONTEXT TextIndexMethods USING TextContains; ``` ```sql CREATE OPERATOR Power_Equals BINDING(PowerDemand_Typ, NUMBER, NUMBER) RETURN NUMBER USING Power_EqualsSpecific_Func; CREATE OPERATOR Power_GreaterThan BINDING(PowerDemand_Typ, NUMBER, NUMBER) RETURN NUMBER USING Power_GreaterThanSpecific_Func; CREATE OPERATOR Power_LessThan BINDING(PowerDemand_Typ, NUMBER, NUMBER) RETURN NUMBER USING Power_LessThanSpecific_Func; CREATE OPERATOR Power_EqualsAny BINDING(PowerDemand_Typ, NUMBER) RETURN NUMBER USING Power_EqualsAny_Func; CREATE OPERATOR Power_GreaterThanAny BINDING(PowerDemand_Typ, NUMBER) RETURN NUMBER USING Power_GreaterThanAny_Func; CREATE OPERATOR Power_LessThanAny BINDING(PowerDemand_Typ, NUMBER) RETURN NUMBER USING Power_LessThanAny_Func; ``` ```sql CREATE OPERATOR eq_op BINDING (VARCHAR2, VARCHAR2) RETURN NUMBER USING eq_f; ``` ```sql CREATE OPERATOR Score BINDING (NUMBER) RETURN NUMBER ANCILLARY TO Contains(VARCHAR2, VARCHAR2) USING TextScore; ``` # 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]
