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Posted to github@arrow.apache.org by "Omega359 (via GitHub)" <gi...@apache.org> on 2024/01/27 16:09:31 UTC

[I] Add a make_date function [arrow-datafusion]

Omega359 opened a new issue, #9024:
URL: https://github.com/apache/arrow-datafusion/issues/9024

   ### Is your feature request related to a problem or challenge?
   
   Currently there isn't a way to make a date from separate component fields without doing a fair bit of work along the lines of:
   ```
   arrow_cast(to_timestamp_seconds(concat(col(date_year), '-', lpad(arrow_cast(col(date_month), 'Utf8'), 2, '0'), '-', lpad(arrow_cast(col(date_day), 'Utf8'), 2, '0'), 'T00:00:00.000Z')), 'Date32')
   ```
   
   A function with the same signature as the [postgresql](https://www.postgresql.org/docs/16/functions-datetime.html) or [spark ](https://spark.apache.org/docs/latest/api/sql/#make_date) would be a useful addition.
   
   ### Describe the solution you'd like
   
   A make_date(year, month, day) function that would take expressions for all arguments with a return type of Date32 for dataframes, Date for SQL.
   
   
   
   ### Describe alternatives you've considered
   
   _No response_
   
   ### Additional context
   
   _No response_


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Re: [I] Add a make_date function [arrow-datafusion]

Posted by "alamb (via GitHub)" <gi...@apache.org>.
alamb commented on issue #9024:
URL: https://github.com/apache/arrow-datafusion/issues/9024#issuecomment-1913576381

   Thanks @Omega359 ! 
   
   BTW I am not sure if you are interested, but https://github.com/apache/arrow-datafusion/issues/8282 contains a list of tickets we have gathered relating to date/time issues


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Re: [I] Add a make_date function [arrow-datafusion]

Posted by "Omega359 (via GitHub)" <gi...@apache.org>.
Omega359 commented on issue #9024:
URL: https://github.com/apache/arrow-datafusion/issues/9024#issuecomment-1913256004

   > A similar request (make interval) is #6951
   
   I can work on that one after I complete this one.


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Re: [I] Add a make_date function [arrow-datafusion]

Posted by "alamb (via GitHub)" <gi...@apache.org>.
alamb commented on issue #9024:
URL: https://github.com/apache/arrow-datafusion/issues/9024#issuecomment-1913251864

   A similar request (make interval) is https://github.com/apache/arrow-datafusion/issues/6951


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