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https://issues.apache.org/jira/browse/ARROW-6278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16909248#comment-16909248
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Francois Saint-Jacques commented on ARROW-6278:
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There's the BufferReader in C++
https://github.com/apache/arrow/blob/master/cpp/src/arrow/io/memory.h#L131-L168
which seems to be referenced/reachable in R bindinds:
https://github.com/apache/arrow/blob/master/r/src/io.cpp#L137-L141
> [R] Handle raw vector from read_parquet
> ----------------------------------------
>
> Key: ARROW-6278
> URL: https://issues.apache.org/jira/browse/ARROW-6278
> Project: Apache Arrow
> Issue Type: New Feature
> Components: R
> Reporter: Brendan Hogan
> Priority: Major
>
> {{read_parquet}} currently handles a path to a local file or an Arrow input
> stream. Would it be possible to add support for a raw vector containing the
> contents of a parquet file?
> Apologies if there is already a way to do this. I have tried populating a
> buffer and passing that as input, but that is unsupported as well. An
> example of how to work using an input stream would be useful as well.
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