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Posted to dev@arrow.apache.org by "Kavita Sheth (JIRA)" <ji...@apache.org> on 2018/09/25 21:58:00 UTC

[jira] [Created] (ARROW-3329) pyarrow column cast not working

Kavita Sheth created ARROW-3329:
-----------------------------------

             Summary: pyarrow column cast not working
                 Key: ARROW-3329
                 URL: https://issues.apache.org/jira/browse/ARROW-3329
             Project: Apache Arrow
          Issue Type: Bug
         Environment: Python version : 3.6.5
Pyarrow version : 0.10.0
            Reporter: Kavita Sheth


I want to cast pyarrow table column from decimal(38,4) to int64.

col.cast(pa.int64())

Error:
File "pyarrow/table.pxi", line 443, in pyarrow.lib.Column.cast
File "pyarrow/error.pxi", line 89, in pyarrow.lib.check_status
pyarrow.lib.ArrowNotImplementedError: No cast implemented from decimal(38, 4) to int64

Python version : 3.6.5
Pyarrow version : 0.10.0

is it not implemented yet or I am not using it correctly? If not implemented yet, then any work around to cast columns?



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