RaigorJiang opened a new issue, #21469:
URL: https://github.com/apache/shardingsphere/issues/21469

   
   ### Background
   
   `CLEAR SHARDING HINT` is a syntax in [DistSQL 
RAL](https://shardingsphere.apache.org/document/current/en/user-manual/shardingsphere-proxy/distsql/syntax/ral/),
 when `ShardingSphereSQLParserEngine` receives this SQL text, it parses it as 
`ClearShardingHintStatement`. Now we need to add a test case for this parsing 
process to assert that the parsing is correct.
   
   
   ### Aim
   
   Add SQL parser test case for `ClearShardingHintStatement`.
   
   - Affected files:
   
     - SQLParserTestCases (**modify**)
   
     - test/parser/src/main/resources/case/ral/updatable.xml (**modify**)
   
     - test/parser/src/main/resources/sql/supported/ral/updatable.xml 
(**modify**)
   
     - 
test/parser/src/main/java/org/apache/shardingsphere/test/sql/parser/parameterized/jaxb/cases/domain/statement/distsql/ral/updatable/ClearShardingHintStatementTestCase.java
 (**create**)
   
     - 
test/parser/src/main/java/org/apache/shardingsphere/test/sql/parser/parameterized/asserts/statement/distsql/ral/impl/updatable/ClearShardingHintStatementAssert.java
 (**create**)
   
     - UpdatableRALStatementAssert (**modify**)
   
   
   - After all, execute `DistSQLParserParameterizedTest#assertDistSQL()` for 
validation
   
   ### Basic Qualifications
   
   - Java
   - Maven
   
   
   ### Example FYI
   
   - ShowAllVariablesStatement
   - ShowAllVariablesStatementTestCase
   - ShowAllVariablesStatementAssert
   - SQLParserTestCases
   - search for "show-all-variables"


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