Wang-qing-yang opened a new issue, #26801: URL: https://github.com/apache/shardingsphere/issues/26801
This issue is created to better track my PRs for OSPP 2023, you can view more about my project [here](https://summer-ospp.ac.cn/org/prodetail/235930269?list=org&navpage=org) ### Background ShardingSphere Parser Engine helps users parse SQL statements into AST and generate corresponding SQL Statement objects from it. How is a SQL parsed? SQL definition file` ->(Parse to) `AST` ->(Visit it) `SQLStatment ### Process 1. Compare SQL definitions in [Oficial SQL Doc](https://www.postgresql.org/docs/14/sql-commands.html) and [ShardingSphere SQL Doc](https://github.com/apache/shardingsphere/tree/master/parser/sql/dialect/postgresql/src/main/antlr4/imports/postgresql) 2. If there is any difference in ShardingSphere SQL Doc, please correct them referring to Official SQL Doc 3. refer to [PostgreSql source code](https://github.com/postgres/postgres/tree/master/src/backend/parser/gram.y) 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](https://github.com/apache/shardingsphere/tree/master/test/it/parser/src/main/resources/sql/supported) and expected parsed result in[ Expected Statment XML](https://github.com/apache/shardingsphere/tree/master/test/it/parser/src/main/resources/case) 7. Run [InternalPostgreSQLParserIT](https://github.com/apache/shardingsphere/tree/master/test/it/parser/src/main/java/org/apache/shardingsphere/test/it/sql/parser/internal/InternalSQLParserIT.java) and [InternalUnsupportedSQLParserIT](https://github.com/apache/shardingsphere/tree/master/test/it/parser/src/main/java/org/apache/shardingsphere/test/it/sql/parser/internal/InternalUnsupportedSQLParserIT.java) to make sure no exceptions. ### Tasks - [ ] EXECUTE - [ ] CREATE TEMPORARY - [ ] CREATE TALBE AS SELECT - [ ] CREATE TEMP TABLE AS SELECT - [ ] INSERT INTO VALUES WITH SPECIAL FUNCTION - [ ] SELECT PROJECTION WITH SPECIAL FUNCTION - [ ] EXPLAIN - [ ] CRATE FUNCTION - [ ] ALTER TYPE - [ ] INSERT INTO SELECT - [ ] MERGE INTO - [ ] FUNCTION - [ ] PROCEDURE - [ ] CREATE TABLE - [ ] CREATE TRIGGER - [ ] CREATE USER - [ ] CREATE VIEW This issue is a ref to https://github.com/apache/shardingsphere/issues/14104 and https://github.com/apache/shardingsphere/issues/18496 -- 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]
