FlyingZC opened a new issue, #29180: URL: https://github.com/apache/shardingsphere/issues/29180
# 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 SELECT SCHEMA_NAME(schema_id) AS schema_name ,o.name AS object_name ,o.type_desc ,p.parameter_id ,p.name AS parameter_name ,TYPE_NAME(p.user_type_id) AS parameter_type ,p.max_length ,p.precision ,p.scale ,p.is_output FROM sys.objects AS o INNER JOIN sys.parameters AS p ON o.object_id = p.object_id WHERE o.object_id = OBJECT_ID('<schema_name.object_name>') ORDER BY schema_name, object_name, p.parameter_id ``` [link](https://learn.microsoft.com/zh-cn/sql/relational-databases/system-catalog-views/sys-objects-transact-sql?view=sql-server-ver16) ```sql SELECT file_id, name, type_desc, physical_name, size, max_size FROM sys.database_files ``` [link](https://learn.microsoft.com/zh-cn/sql/relational-databases/databases/display-data-and-log-space-information-for-a-database?view=sql-server-ver16) ```sql SELECT name, reason, score, JSON_VALUE(details, '$.implementationDetails.script') AS script, details.* FROM sys.dm_db_tuning_recommendations CROSS APPLY OPENJSON(details, '$.planForceDetails') WITH ( [query_id] INT '$.queryId', regressed_plan_id INT '$.regressedPlanId', last_good_plan_id INT '$.recommendedPlanId' ) AS details WHERE JSON_VALUE(STATE, '$.currentValue') = 'Active' ``` [link](https://learn.microsoft.com/zh-cn/sql/relational-databases/system-dynamic-management-views/sys-dm-db-tuning-recommendations-transact-sql?view=sql-server-ver16) ```sql SELECT reason, score, script = JSON_VALUE(details, '$.implementationDetails.script'), planForceDetails.*, estimated_gain = (regressedPlanExecutionCount + recommendedPlanExecutionCount) * (regressedPlanCpuTimeAverage - recommendedPlanCpuTimeAverage) / 1000000, error_prone = IIF(regressedPlanErrorCount > recommendedPlanErrorCount, 'YES', 'NO') FROM sys.dm_db_tuning_recommendations CROSS APPLY OPENJSON(Details, '$.planForceDetails') WITH ( [query_id] INT '$.queryId', regressedPlanId INT '$.regressedPlanId', recommendedPlanId INT '$.recommendedPlanId', regressedPlanErrorCount INT, recommendedPlanErrorCount INT, regressedPlanExecutionCount INT, regressedPlanCpuTimeAverage FLOAT, recommendedPlanExecutionCount INT, recommendedPlanCpuTimeAverage FLOAT ) AS planForceDetails ``` [link](https://learn.microsoft.com/zh-cn/sql/relational-databases/system-dynamic-management-views/sys-dm-db-tuning-recommendations-transact-sql?view=sql-server-ver16) ```sql SELECT Tab.Id, SalesOrderJsonData.Customer, SalesOrderJsonData.Date FROM SalesOrderRecord AS Tab CROSS APPLY OPENJSON(Tab.json, N'$.Orders.OrdersArray') WITH ( Number VARCHAR(200) N'$.Order.Number', Date DATETIME N'$.Order.Date', Customer VARCHAR(200) N'$.AccountNumber', Quantity INT N'$.Item.Quantity' ) AS SalesOrderJsonData WHERE JSON_VALUE(Tab.json, '$.Status') = N'Closed' ORDER BY JSON_VALUE(Tab.json, '$.Group'), Tab.DateModified ``` [link](https://learn.microsoft.com/zh-cn/sql/relational-databases/json/json-data-sql-server?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]
