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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2019/06/24 02:33:00 UTC

[jira] [Updated] (ARROW-2572) [Python] Add factory function to create a Table from Columns and Schema.

     [ https://issues.apache.org/jira/browse/ARROW-2572?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney updated ARROW-2572:
--------------------------------
    Fix Version/s:     (was: 0.14.0)
                   1.0.0

> [Python] Add factory function to create a Table from Columns and Schema.
> ------------------------------------------------------------------------
>
>                 Key: ARROW-2572
>                 URL: https://issues.apache.org/jira/browse/ARROW-2572
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>    Affects Versions: 0.9.0
>            Reporter: Thomas Buhrmann
>            Priority: Minor
>              Labels: beginner
>             Fix For: 1.0.0
>
>
> At the moment it seems to be impossible in Python to add custom metadata to a Table or Column. The closest I've come is to create a list of new Fields (by "appending" metadata to existing Fields), and then creating a new Schema from these Fields using the Schema factory function. But I can't see how to create a new table from the existing Columns and my new Schema, which I understand would be the way to do it in C++?
> Essentially, wrappers for the Table's Make(...) functions seem to be missing.



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