FlyingZC opened a new issue, #27734: URL: https://github.com/apache/shardingsphere/issues/27734
# Background Hi community, 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 openGauss SQL parsing in ShardingSphere. More details: https://shardingsphere.apache.org/document/current/en/reference/sharding/parse/ # Task This issue is to support more openGauss sql parse, as follows: ```sql ALTER TRIGGER delete_trigger ON test_trigger_src_tbl RENAME TO delete_trigger_renamed; --删除触发器 ``` ```sql DROP TRIGGER insert_trigger ON test_trigger_src_tbl; ``` ```sql DROP TRIGGER update_trigger ON test_trigger_src_tbl; ``` ```sql DROP TRIGGER delete_trigger_renamed ON test_trigger_src_tbl; ``` ```sql db_ignore=# create table t_not_null(num int not null); CREATE TABLE -- 采用忽略策略 db_ignore=# set sql_ignore_strategy = 'ignore_null'; SET db_ignore=# insert /*+ ignore_error */ into t_not_null values(null), (1); WARNING: null value in column "num" violates not-null constraint DETAIL: Failing row contains (null). INSERT 0 1 db_ignore=# select * from t_not_null ; num ----- 1 (1 row) -- 采用覆写策略 db_ignore=# delete from t_not_null; db_ignore=# set sql_ignore_strategy = 'overwrite_null'; SET db_ignore=# insert /*+ ignore_error */ into t_not_null values(null), (1); WARNING: null value in column "num" violates not-null constraint DETAIL: Failing row contains (null). INSERT 0 2 db_ignore=# select * from t_not_null ; ``` # Process 1. First confirm that this is a correct openGauss sql syntax, if not please leave a message under the issue and ignore it; 2. Compare SQL definitions in Official 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 Statement 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 openGauss 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]
