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Posted to issues@arrow.apache.org by "Antoine Pitrou (JIRA)" <ji...@apache.org> on 2019/02/13 19:18:00 UTC

[jira] [Created] (ARROW-4563) [Python] pa.decimal128 should validate inputs

Antoine Pitrou created ARROW-4563:
-------------------------------------

             Summary: [Python] pa.decimal128 should validate inputs
                 Key: ARROW-4563
                 URL: https://issues.apache.org/jira/browse/ARROW-4563
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
    Affects Versions: 0.12.0
            Reporter: Antoine Pitrou


The precision shouldn't be higher than 38, but 39 is happily accepted currently:
{code:python}
>>> ty = pa.decimal128(39, 0)                                                                            
>>> arr = pa.array([2**127], type=ty)                                                                  
>>> arr                                                                                                  
<pyarrow.lib.Decimal128Array object at 0x7f9b89444138>
[
  -170141183460469231731687303715884105728
]
{code}





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