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Posted to github@datafusion.apache.org by "rkrishn7 (via GitHub)" <gi...@apache.org> on 2025/02/06 03:47:10 UTC

Re: [I] Create UNION plan node with correct schema [datafusion]

rkrishn7 commented on issue #14380:
URL: https://github.com/apache/datafusion/issues/14380#issuecomment-2638760053

   Hello @findepi!
   
   I'd be happy to work on this. I believe it's as simple as shifting union schema coercion from the analyzer to logical plan building.
   
   However, since wildcard expansion happens later on, we wouldn't want to attempt coercing the plan inputs. Which makes me wonder - is there benefit to producing a plan that has a correct schema but may have non-coerced input plans? 🤔 


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