FlyingZC opened a new issue, #29177:
URL: https://github.com/apache/shardingsphere/issues/29177

   # 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 ContosoWarehouse.dbo.Affiliation
   SELECT * 
   FROM My_Lakehouse.dbo.Affiliation
   ```
   
[link](https://learn.microsoft.com/zh-cn/fabric/data-warehouse/query-warehouse)
   
   ```sql
   SELECT c.name AS column_name  
       ,c.column_id  
       ,SCHEMA_NAME(t.schema_id) AS type_schema  
       ,t.name AS type_name  
       ,t.is_user_defined  
       ,t.is_assembly_type  
       ,c.max_length  
       ,c.precision  
       ,c.scale  
   FROM sys.columns AS c   
   JOIN sys.types AS t ON c.user_type_id=t.user_type_id  
   WHERE c.object_id = OBJECT_ID('<schema_name.table_name>')  
   ORDER BY c.column_id
   ```
   
[link](https://learn.microsoft.com/zh-cn/sql/relational-databases/system-catalog-views/querying-the-sql-server-system-catalog-faq?view=sql-server-ver16)
   
   ```sql
   SELECT OBJECT_NAME(object_id) AS referencing_object_name  
       ,COALESCE(COL_NAME(object_id, column_id), '(n/a)') AS 
referencing_column_name  
       ,*  
   FROM sys.sql_dependencies  
   WHERE referenced_major_id = OBJECT_ID('<schema_name.function_name>')  
   ORDER BY OBJECT_NAME(object_id), COL_NAME(object_id, column_id)
   ```
   
[link](https://learn.microsoft.com/zh-cn/sql/relational-databases/system-catalog-views/querying-the-sql-server-system-catalog-faq?view=sql-server-ver16)
   
   ```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/querying-the-sql-server-system-catalog-faq?view=sql-server-ver16)
   
   ```sql
   SELECT name AS view_name   
     ,SCHEMA_NAME(schema_id) AS schema_name  
     ,OBJECTPROPERTYEX(object_id,'IsIndexed') AS IsIndexed  
     ,OBJECTPROPERTYEX(object_id,'IsIndexable') AS IsIndexable  
     ,create_date  
     ,modify_date  
   FROM sys.views
   ```
   
[link](https://learn.microsoft.com/zh-cn/sql/relational-databases/system-catalog-views/querying-the-sql-server-system-catalog-faq?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


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