github-actions[bot] commented on issue #15787:
URL: 
https://github.com/apache/dolphinscheduler/issues/15787#issuecomment-2029427466

   ### Search before asking
   
   - [X] I had searched in the 
[issues](https://github.com/apache/dolphinscheduler/issues?q=is%3Aissue) and 
found no similar issues.
   
   
   ### What happened
   
   The SQL job uses the oracle data source type, and the task error occurs when 
union all is used in sql.
   Execute the following sql:
   select a,b,c,b-c as d
   from
   (select 1 as a,2 as b,3 as c from dual)
   
   union all
   select 1 as a,2 as b,3 as c,4 as d from dual
   By querying the log, you can see that the above sql is parsed as:
   SELECT a, b, c, b - c AS d
   FROM (
   SELECT 1 AS a, 2 AS b, 3 AS c
   FROM dual
   UNION ALL
   SELECT 1 AS a, 2 AS b, 3 AS c, 4 AS d
   FROM dual
   )
   
   ### What you expected to happen
   
   Display the merged result set normally
   
   ### How to reproduce
   
   Execute the following sql in the SQL task:
   select a,b,c,b-c as d
   from
   (select 1 as a,2 as b,3 as c from dual)
   
   union all
   select 1 as a,2 as b,3 as c,4 as d from dual
   
   ### Anything else
   
   _No response_
   
   ### Version
   
   3.2.x
   
   ### Are you willing to submit PR?
   
   - [ ] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of 
Conduct](https://www.apache.org/foundation/policies/conduct)


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