[GitHub] [shardingsphere] RaigorJiang opened a new issue #14554: [DistSQL] Inconsistent case causes the default sharding database strategy not work.

[GitBox <gi...@apache.org>]

RaigorJiang opened a new issue #14554:
URL: https://github.com/apache/shardingsphere/issues/14554


   ## Bug Report
   
   ### Which version of ShardingSphere did you use?
   5.0.1-SNAPSHOT master branch
   
   ### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
   ShardingSphere-Proxy
   
   ### Expected behavior
   1. Use DistSQL `CREATE DEFAULT SHARDING DATABASE STRATEGY` to create a default sharding database strategy.
   ```sql
   CREATE DEFAULT SHARDING DATABASE STRATEGY (
     TYPE=standard,SHARDING_COLUMN=DEMO_ID,SHARDING_ALGORITHM=database_inline
   );
   ```
   2. The default sharding database strategy can work for routing.
   
   ### Actual behavior
   1. After create default sharding database strategy, the strategy in meta data is: 
   ```yaml
     defaultDatabaseStrategy:
       standard:
         shardingAlgorithmName: database_inline
         shardingColumn: demo_id
   ```
   We can see the shardingColumn became lower case.
   2. When execute query with sharding column, like:
   ```sql
   SELECT * FROM t_order WHERE DEMO_ID = 123456;
   ```
   An error occurs: 
   ```sql
   ERROR 1997 (C1997): Runtime exception: [Route table ds_null does not exist, available actual table: [xxx, xxx]]
   ```
   And, if change the sharding column in meta data to upper case, the strategy will work.
   
   ### Reason analyze (If you can)
   In `ShardingDistSQLStatementVisitor`, sharding column was changed to lower case: 
   ```java
   String shardingColumn = getIdentifierValue(shardingStrategyContext.shardingColumn().columnName()).toLowerCase();
   ```
   


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[GitHub] [shardingsphere] sandynz closed issue #14554: [DistSQL] Inconsistent case causes the default sharding database strategy not work.

[GitBox <gi...@apache.org>]

sandynz closed issue #14554:
URL: https://github.com/apache/shardingsphere/issues/14554


   


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