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https://issues.apache.org/jira/browse/ARROW-15458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17484684#comment-17484684
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Dewey Dunnington commented on ARROW-15458:
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Thanks for this feature request!
I'm not sure that this feature is exposed at the C++ level yet (i.e., I
couldn't find it in the current implementation of
{{parquet::ArrowReaderProperties}} on the Arrow C++ side). This is what we use
in R to pass options to the Parquet reader, so I'm not sure we can do that
until it's implemented there.
Where we do this in R:
https://github.com/apache/arrow/blob/94d4719024202248902507e7e9d2d4ef39ca9323/r/R/parquet.R#L572-L597
Where we do this in R/C++:
https://github.com/apache/arrow/blob/master/r/src/parquet.cpp#L41-L84
Where we do this in Arrow C++:
https://github.com/apache/arrow/blob/542e81b6dea62f90817b117b1cb1b2de953f293e/cpp/src/parquet/properties.h#L559-L630
> [R] Arrow/Parquet can't open encrypted parquet files
> ----------------------------------------------------
>
> Key: ARROW-15458
> URL: https://issues.apache.org/jira/browse/ARROW-15458
> Project: Apache Arrow
> Issue Type: Improvement
> Components: R
> Affects Versions: 6.0.1
> Reporter: Jaime Salvador
> Priority: Major
> Labels: features
>
> I have some programs written in C++ that use ARROW/PARQUET in encrypted
> format, but int order to check the data stored in parquet files, I need a
> quick way to check it, so I thought R could be useful for me, but I can't
> find the way to pass the "key" to decrypt the data (in R).
> I think it is an unsupported feature (not supported yet)!
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