roodkcab commented on issue #14472:
URL: 
https://github.com/apache/shardingsphere/issues/14472#issuecomment-1005514573


   > Hi @roodkcab, we have provide [sql 
hint](https://shardingsphere.apache.org/document/current/cn/user-manual/shardingsphere-jdbc/special-api/sharding/hint/#%E4%BD%BF%E7%94%A8-hint-%E8%B7%AF%E7%94%B1%E8%87%B3%E6%8C%87%E5%AE%9A%E6%95%B0%E6%8D%AE%E5%BA%93)
 in the master branch, I think you can try it. SQL hint can implement primary 
dataSource routing through comments in sql.
   > 
   > ```sql
   > /* ShardingSphere hint: writeRouteOnly=true */
   > SELECT * FROM t_order;
   > ```
   
   yes, I know. and we have distsql to change session based hint too. the need 
is to use hint by dsn, i.e. use host, port or username to set hint 
automatically. 


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