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Posted to github@arrow.apache.org by "izveigor (via GitHub)" <gi...@apache.org> on 2023/06/06 11:25:32 UTC

[GitHub] [arrow-datafusion] izveigor opened a new issue, #6559: Write `Signature` method for list datatypes.

izveigor opened a new issue, #6559:
URL: https://github.com/apache/arrow-datafusion/issues/6559

   ### Is your feature request related to a problem or challenge?
   
   As stated in https://github.com/apache/arrow-datafusion/pull/6384, new array functions must only accept special types, including list. The main problem is that it is necessary to check the data types for each list (also nested lists).
   
   ### Describe the solution you'd like
   
   I think it would be better to implement a recursive algorithm for checking all data types of each list item.
   New `Signature` method should accept an array of the specific datatypes (like `ARRAY_DATATYPES`).
   
   ### Describe alternatives you've considered
   
   _No response_
   
   ### Additional context
   
   Simillar Issues:
   https://github.com/apache/arrow-datafusion/issues/6119
   https://github.com/apache/arrow-datafusion/issues/6075
   
   Simillar PR:
   https://github.com/apache/arrow-datafusion/pull/6384
   


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[GitHub] [arrow-datafusion] izveigor commented on issue #6559: Write `Signature` method for list datatypes.

Posted by "izveigor (via GitHub)" <gi...@apache.org>.

izveigor commented on issue #6559:
URL: https://github.com/apache/arrow-datafusion/issues/6559#issuecomment-1696134383

   This is the serious problem that should be solved soon. I will take this under my own responsibility.


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