zjcnb edited a comment on issue #11621:
URL: 
https://github.com/apache/shardingsphere/issues/11621#issuecomment-895764530


   Hi,
   
   At present, according to the logic of singleTableRule, the 
DefaultSchema.LOGIC_NAME in ADatabaseDiscoverySQLRouter.class and 
ReadwriteSplittingSQLRouter.class does not need to be adjusted for the time 
being.
   
   DatabaseDiscoverySQLRouter.createRouteContext()
   ```
    @Override
       public RouteContext createRouteContext(final LogicSQL logicSQL, final 
ShardingSphereMetaData metaData, final DatabaseDiscoveryRule rule, final 
ConfigurationProperties props) {
           RouteContext result = new RouteContext();
           String dataSourceName = new 
DatabaseDiscoveryDataSourceRouter(rule.getSingleDataSourceRule()).route();
           result.getRouteUnits().add(new RouteUnit(new 
RouteMapper(DefaultSchema.LOGIC_NAME, dataSourceName), 
Collections.emptyList()));
           return result;
       }
   ```
   ReadwriteSplittingSQLRouter.createRouteContext()
   
   ```
     @Override
       public RouteContext createRouteContext(final LogicSQL logicSQL, final 
ShardingSphereMetaData metaData, final ReadwriteSplittingRule rule, final 
ConfigurationProperties props) {
           RouteContext result = new RouteContext();
           String dataSourceName = new 
ReadwriteSplittingDataSourceRouter(rule.getSingleDataSourceRule()).route(logicSQL.getSqlStatementContext().getSqlStatement());
           result.getRouteUnits().add(new RouteUnit(new 
RouteMapper(DefaultSchema.LOGIC_NAME, dataSourceName), 
Collections.emptyList()));
           return result;
       }
   ```


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