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Posted to issues@arrow.apache.org by "vcfgv (via GitHub)" <gi...@apache.org> on 2023/05/22 10:56:02 UTC

[GitHub] [arrow] vcfgv opened a new issue, #35704: KeyError when using compute function month_interval_between()

vcfgv opened a new issue, #35704:
URL: https://github.com/apache/arrow/issues/35704

   ### Describe the bug, including details regarding any error messages, version, and platform.
   
   **Error Message**
   
   **Version**
   python: 3.7.9
   pa.__version__: 12.0.0
   
   
   ### Component(s)
   
   Python


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[GitHub] [arrow] jorisvandenbossche commented on issue #35704: [Python] KeyError when using compute function month_interval_between()

Posted by "jorisvandenbossche (via GitHub)" <gi...@apache.org>.
jorisvandenbossche commented on issue #35704:
URL: https://github.com/apache/arrow/issues/35704#issuecomment-1558684574

   In practice, we can consider this as a duplicate (or consequence) of https://github.com/apache/arrow/issues/29828


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[GitHub] [arrow] vcfgv commented on issue #35704: [Python] KeyError when using compute function month_interval_between()

Posted by "vcfgv (via GitHub)" <gi...@apache.org>.
vcfgv commented on issue #35704:
URL: https://github.com/apache/arrow/issues/35704#issuecomment-1558837879

   Thank you for your informative response. @jorisvandenbossche 


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[GitHub] [arrow] jorisvandenbossche closed issue #35704: [Python] KeyError when using compute function month_interval_between()

Posted by "jorisvandenbossche (via GitHub)" <gi...@apache.org>.
jorisvandenbossche closed issue #35704: [Python] KeyError when using compute function month_interval_between()
URL: https://github.com/apache/arrow/issues/35704


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[GitHub] [arrow] westonpace closed issue #35704: [Python] KeyError when using compute function month_interval_between()

Posted by "westonpace (via GitHub)" <gi...@apache.org>.
westonpace closed issue #35704: [Python] KeyError when using compute function month_interval_between()
URL: https://github.com/apache/arrow/issues/35704


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[GitHub] [arrow] jorisvandenbossche commented on issue #35704: [Python] KeyError when using compute function month_interval_between()

Posted by "jorisvandenbossche (via GitHub)" <gi...@apache.org>.
jorisvandenbossche commented on issue #35704:
URL: https://github.com/apache/arrow/issues/35704#issuecomment-1558681248

   @vcfgv thanks for opening the issue! You are running into a limitation of the pyarrow python bindings (although the error message is not very clear about what is going on ..). 
   The "month_interval_between" kernel returns an array with the interval type with the "year_month" unit. And currently, the python bindings only support the "month_day_nano" unit. 
   
   If you use the "month_day_nano_interval_between" kernel instead, you do get a result, using your example data:
   
   ```python
   >>> pc.month_day_nano_interval_between(array_0, array_1)
   <pyarrow.lib.MonthDayNanoIntervalArray object at 0x7f41b7c9b5e0>
   [
     0M0d0ns,
     0M0d0ns
   ]
   ```


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