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https://issues.apache.org/jira/browse/ARROW-9676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17224355#comment-17224355
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Neal Richardson commented on ARROW-9676:
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Ok I made ARROW-10456 for map type support. Feel free to follow that issue if
this is something that's important to you.
> [R] Error converting Table with nested structs
> -----------------------------------------------
>
> Key: ARROW-9676
> URL: https://issues.apache.org/jira/browse/ARROW-9676
> Project: Apache Arrow
> Issue Type: Bug
> Components: R
> Affects Versions: 1.0.0
> Environment: Amazon Linux, 32gb of ram
> Reporter: Nick DiQuattro
> Assignee: Romain Francois
> Priority: Major
> Fix For: 2.0.0
>
>
> When trying to collect data from a dataset based on parquet files with nested
> structs (column is a struct with 2 structs nested) of moderate size (1Mish
> rows), R crashes. If I add a filter to reduce the number of rows, the data is
> parsed. If I select out the struct column, it works great (up to 21M rows).
> My hunch is the structs resulting in data.frame columns may be the issue. I
> am curious if there's a way to have arrow import structs as lists instead of
> data.frames. Thanks for the direction to here [~neilr8133]!
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