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Posted to jira@arrow.apache.org by "Matthew Byng-Maddick (Jira)" <ji...@apache.org> on 2020/11/13 18:02:00 UTC

[jira] [Commented] (ARROW-3917) [Python] Provide Python API to ArrayBuilder classes

    [ https://issues.apache.org/jira/browse/ARROW-3917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17231704#comment-17231704 ] 

Matthew Byng-Maddick commented on ARROW-3917:
---------------------------------------------

I was about to have a look at this, and then noticed that StringBuilder (which is in the code, but undocumented (and presumably unsupported as a result) is already supported. It's currently working well for me (for legacy reasons the parquet conversion I'm doing is only string-based)

> [Python] Provide Python API to ArrayBuilder classes
> ---------------------------------------------------
>
>                 Key: ARROW-3917
>                 URL: https://issues.apache.org/jira/browse/ARROW-3917
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: Python
>            Reporter: Wes McKinney
>            Priority: Major
>
> These classes can support both scalar and array appends. We might have to think a bit about how to support efficiently appending from strided NumPy arrays



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