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