morrySnow opened a new issue, #16572:
URL: https://github.com/apache/doris/issues/16572

   ### Search before asking
   
   - [X] I had searched in the 
[issues](https://github.com/apache/doris/issues?q=is%3Aissue) and found no 
similar issues.
   
   
   ### Description
   
   currently, we do typecoercion twice. First one in bind stage, second one 
after subquery unnest.
   The reason is we cannot do type coersion on SubqueryExpr and reserve it when 
it convert to apply and join.
   
   ### Solution
   
   do typecoercion on subqueryExpr when binding and remove the second type 
coercion.
   
   ### 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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