[jira] [Updated] (ARROW-1398) [Python] No support reading columns of type decimal(19,4)

["Wes McKinney (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-1398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney updated ARROW-1398:
--------------------------------
    Summary: [Python] No support reading columns of type decimal(19,4)  (was: No support reading columns of type decimal(19,4))

> [Python] No support reading columns of type decimal(19,4)
> ---------------------------------------------------------
>
>                 Key: ARROW-1398
>                 URL: https://issues.apache.org/jira/browse/ARROW-1398
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Python
>    Affects Versions: 0.6.0
>         Environment: Ubuntu 16.04, Python 3.6
>            Reporter: Ludwik Bielczynski
>              Labels: decimal, python
>             Fix For: 0.7.0
>
>
> I have a localy saved parquet database created in spark from querrying an SQL database. When I run:
> {code:python}
> import pyarrow.parquet as pq
> path = "path/to/parquet/dataset"
> dataset = pq.ParquetDataset(path)
> dataset.read()
> {code}
> an error indicating that there is no support for reading columns of type decimal(19,4). It's quite a common type used in SQL databases and I saw in the source code that there is an implementation for decimals. I'm stuck trying to figuring out a solution. Is there a walk around (conversion of decimals to integers during reading)?



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