FlyingZC opened a new issue, #29173: URL: https://github.com/apache/shardingsphere/issues/29173
# Background Hi community. This issue is for #29149. The ShardingSphere SQL parser engine helps users to parse SQL to create the AST (Abstract Syntax Tree) and visit the AST to get SQLStatement (Java Object). Currently, we are planning to enhance the support for `SQL Server` SQL parsing in ShardingSphere. More details: https://shardingsphere.apache.org/document/current/en/reference/sharding/parse/ # Task This issue is to support more `SQL Server` sql parsing, as follows: ```sql INSERT INTO myTable(FileName, FileType, Document) SELECT 'Text1.txt' AS FileName , '.txt' AS FileType , * FROM OPENROWSET(BULK N'C:\Text1.txt', SINGLE_BLOB) AS Document ``` [link](https://learn.microsoft.com/zh-cn/sql/t-sql/functions/openrowset-transact-sql?view=sql-server-ver16) ```sql INSERT INTO achievements with (TABLOCK) (id, description) SELECT * FROM OPENROWSET( BULK 'csv/achievements.csv', DATA_SOURCE = 'MyAzureBlobStorage', FORMAT ='CSV', FORMATFILE='csv/achievements-c.xml', FORMATFILE_DATA_SOURCE = 'MyAzureBlobStorage' ) AS DataFile ``` [link](https://learn.microsoft.com/zh-cn/sql/t-sql/functions/openrowset-transact-sql?view=sql-server-ver16) ```sql SELECT has_backup_checksums, database_name, * FROM msdb..backupset ``` [link](https://learn.microsoft.com/zh-cn/sql/database-engine/configure-windows/backup-checksum-default?view=sql-server-ver16) ```sql SELECT FileName = df.name, current_file_size_MB = df.size*1.0/128, max_size = CASE df.max_size WHEN 0 THEN 'Autogrowth is off.' WHEN -1 THEN 'Autogrowth is on.' ELSE 'Log file grows to a maximum size of 2 TB.' END, growth_value = CASE WHEN df.growth = 0 THEN df.growth WHEN df.growth > 0 AND df.is_percent_growth = 0 THEN df.growth*1.0/128.0 WHEN df.growth > 0 AND df.is_percent_growth = 1 THEN df.growth END, growth_increment_unit = CASE WHEN df.growth = 0 THEN 'Size is fixed.' WHEN df.growth > 0 AND df.is_percent_growth = 0 THEN 'Growth value is MB.' WHEN df.growth > 0 AND df.is_percent_growth = 1 THEN 'Growth value is a percentage.' END FROM tempdb.sys.database_files AS df ``` [link](https://learn.microsoft.com/zh-cn/sql/relational-databases/databases/tempdb-database?view=sql-server-ver16) ```sql SELECT plan_handle, st.text FROM sys.dm_exec_cached_plans CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS st WHERE text LIKE N'SELECT * FROM Person.Address%' ``` [link](https://learn.microsoft.com/zh-cn/sql/t-sql/database-console-commands/dbcc-freeproccache-transact-sql?view=sql-server-ver16) # Process 1. First confirm that this is a correct `SQL Server` 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 `SQL Server` 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]
