[GitHub] [shardingsphere] wsm12138 commented on issue #20458: NPE: when execute `MIGRATE TABLE source_ds.t_order INTO sharding_db.t_order;` , `select * from table` occur `ERROR 30000 (42000): Unknown exception: null`

Tue, 23 Aug 2022 23:49:00 -0700 


wsm12138 commented on issue #20458:
URL: 
https://github.com/apache/shardingsphere/issues/20458#issuecomment-1225272434

   I have another question.
   I don't execute `refresh table metadata;`. When execute select count(*) from 
table during MIGRATE;execute select * from table during MIGRATE, `select * from 
table ` success,select count(*) from table have error.
   <img width="803" alt="image" 
src="https://user-images.githubusercontent.com/86462784/186349752-2defef7f-cfb4-4ea9-9cdb-d374e78df3af.png";>
   
   
![image](https://user-images.githubusercontent.com/86462784/186349454-f09deb49-f683-4c02-b5ff-19cb221ad889.png)
   
   
   ### so,select * from sharding_table,don't need metadata?
   
   <img width="1310" alt="image" 
src="https://user-images.githubusercontent.com/86462784/186348945-a66a71f9-c47e-47ba-8ce0-307fff1dc752.png";>
   
   
   
   
   


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]

Reply via email to