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Posted to jira@arrow.apache.org by "Neal Richardson (Jira)" <ji...@apache.org> on 2020/09/09 20:24:00 UTC

[jira] [Updated] (ARROW-9676) [R] Error converting Table with nested structs

     [ https://issues.apache.org/jira/browse/ARROW-9676?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neal Richardson updated ARROW-9676:
-----------------------------------
    Issue Type: Bug  (was: New Feature)

> [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
>            Priority: Major
>
> 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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