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

["Kavita Sheth (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-3329?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kavita Sheth updated ARROW-3329:
--------------------------------
    Component/s: Python

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