FlyingZC opened a new issue, #27865: URL: https://github.com/apache/shardingsphere/issues/27865
# 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 SQLRETURN SQLGetData(SQLHSTMT StatementHandle, SQLUSMALLINT Col_or_Param_Num, SQLSMALLINT TargetType, SQLPOINTER TargetValuePtr, SQLLEN BufferLength, SQLLEN *StrLen_or_IndPtr); ``` ```sql CREATE [DEFINER = user] EVENT [IF NOT EXISTS] event_name ON SCHEDULE schedule [ON COMPLETION [NOT] PRESERVE] [ENABLE | DISABLE | DISABLE ON SLAVE] [COMMENT 'string'] DO event_body; ``` ```sql CREATE EVENT IF NOT EXISTS event_e1 ON SCHEDULE AT sysdate + interval 5 second + interval 33 minute DISABLE DO insert into t_ev values(0); --创建一个每隔一分钟执行一次的定时任务 ``` ```sql CREATE EVENT IF NOT EXISTS event_e1 ON SCHEDULE EVERY 1 minute DO insert into t_ev values(1); ``` ```sql import psycopg2 # psycopg2常用连接方式 1. conn = psycopg2.connect(dbname="postgres", user="user", password="password", host="localhost", port=port) 2. conn = psycopg2.connect("dbname=postgres user=user password=password host=localhost port=port") # 创建连接对象 conn=psycopg2.connect(database="postgres",user="user",password="password",host="localhost",port=port) cur=conn.cursor() #创建指针对象 # 创建连接对象（SSl连接） conn = psycopg2.connect(dbname="postgres", user="user", password="password", host="localhost", port=port, sslmode="verify-ca", sslcert="client.crt",sslkey="client.key",sslrootcert="cacert.pem") 注意：sslcert，sslkey，sslrootcert分别为用户证书，用户私钥和根证书的文件路径，如果不进行赋值，默认为 ~/.postgresql目录下对应的client.crt，client.key和root.crt。 # 创建表 cur.execute("CREATE TABLE student(id integer,name varchar,sex varchar); ``` # 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]
