[GitHub] [incubator-doris] EmmyMiao87 commented on issue #3331: query against view failed when the view contains union

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

EmmyMiao87 commented on issue #3331: query against view failed when the view contains union
URL: https://github.com/apache/incubator-doris/issues/3331#issuecomment-614457934
 
 
   If the view include both union and constant, the query will thrown exception when it includes view.
   
   ```
   mysql> create view test as
       -> SELECT event_day,   'kpi_duration' AS `type` FROM `default_cluster:muse_db`.`test`
       -> UNION ALL
       -> SELECT event_day,  'kpi_dau_login' AS `type` FROM `default_cluster:muse_db`.`test` ;
   Query OK, 0 rows affected (0.02 sec)
   
   mysql> select type from test;
   ERROR 1064 (HY000): failed to build storage scanner, no materialized slot!
   ```

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