Support parsing SQL Server SELECT name sql

[FlyingZC]

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:

SELECT name AS column_name   
    ,column_id   
    ,TYPE_NAME(user_type_id) AS type_name  
    ,max_length  
    ,CASE   
       WHEN max_length = -1 AND TYPE_NAME(user_type_id) <> 'xml'  
            THEN 1  
            ELSE 0  
     END AS [(max)]  
FROM sys.columns  
WHERE object_id=OBJECT_ID('<schema_name.table_name>')   
    AND ( TYPE_NAME(user_type_id) IN ('xml','text', 'ntext','image')  
         OR (TYPE_NAME(user_type_id) IN ('varchar','nvarchar','varbinary')  
         AND max_length = -1)  
        )

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SELECT OBJECT_NAME(object_id) AS object_name   
    ,c.name AS column_name   
    ,SCHEMA_NAME(t.schema_id) AS schema_name  
    ,TYPE_NAME(c.user_type_id) AS user_type_name  
    ,c.max_length  
    ,c.precision  
    ,c.scale  
    ,c.is_nullable  
    ,c.is_computed  
FROM sys.columns AS c  
INNER JOIN sys.types AS t ON c.user_type_id = t.user_type_id  
WHERE c.user_type_id = TYPE_ID('<schema_name.data_type_name>')

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INSERT INTO Production.UnitMeasure  
VALUES (N'FT', N'Feet', '20080414')

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INSERT INTO Production.UnitMeasure  
VALUES (N'FT2', N'Square Feet ', '20080923'), (N'Y', N'Yards', '20080923')
    , (N'Y3', N'Cubic Yards', '20080923')

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INSERT INTO Production.UnitMeasure (Name, UnitMeasureCode,  
    ModifiedDate)  
VALUES (N'Square Yards', N'Y2', GETDATE())

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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

[jiangminbing]

我来处理

[strongduanmu]

@jiangminbing Assigned, please enjoy it.

[github-actions]

There hasn't been any activity on this issue recently, and in order to prioritize active issues, it will be marked as stale.

[TherChenYang]

@FlyingZC Please assign this issue to me

[strongduanmu]

@TherChenYang Assgined. You can start it.

[TherChenYang]

@strongduanmu Thank you very much, this issue can be closed now.

[strongduanmu]

Fixed by ##30184.