FlyingZC opened a new issue, #27029: URL: https://github.com/apache/shardingsphere/issues/27029
# 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 JAVA SOURCE NAMED "Welcome" AS public class Welcome { public static String welcome() { return "Welcome World"; ``` ```sql CREATE LIBRARY C_utils AS '/DLLs/utils.so'; ``` ```sql CREATE MATERIALIZED VIEW sum_sales_per_category_mv BUILD IMMEDIATE REFRESH FORCE ON DEMAND ENABLE QUERY REWRITE AS SELECT p.rowid prid, p.prod_category, SUM (s.amount_sold) sum_sales, COUNT(*) cnt FROM sales_par_list s, product_par_list p WHERE s.prod_id = p.prod_id and s.calendar_year <= 2000 GROUP BY p.rowid, p.prod_category; ``` ```sql CREATE MATERIALIZED VIEW sales_in_1999_mv BUILD IMMEDIATE REFRESH FORCE ON DEMAND ENABLE QUERY REWRITE AS SELECT s.time_id, s.prod_id, p.prod_name, SUM(quantity_sold) FROM part_sales_by_time s, products p WHERE p.prod_id = s.prod_id AND s.time_id BETWEEN TO_DATE('01-01-1999', 'DD-MM-YYYY') AND TO_DATE('31-12-1999', 'DD-MM-YYYY') GROUP BY s.time_id, s.prod_id, p.prod_name; ``` ```sql CREATE LIBRARY ext_lib AS '/OR/lib/ext_lib.so'; ``` # 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]
