[jira] [Assigned] (ARROW-17178) [R] Support head() in arrow_dplyr_query with user-defined function

["Dewey Dunnington (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-17178?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dewey Dunnington reassigned ARROW-17178:
----------------------------------------

    Assignee: Dewey Dunnington

> [R] Support head() in arrow_dplyr_query with user-defined function
> ------------------------------------------------------------------
>
>                 Key: ARROW-17178
>                 URL: https://issues.apache.org/jira/browse/ARROW-17178
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: R
>            Reporter: Dewey Dunnington
>            Assignee: Dewey Dunnington
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 3h 50m
>  Remaining Estimate: 0h
>
> After ARROW-16444 and ARROW-16703 we will have some arrow_dplyr_query objects whose pipeline can't contain {{head()}} after the part that calls R code. This is a very big feature not to support and we need to find a workaround. The full-on solution is to make sure that we support an R-level RecordBatchReader, but there may be a workaround that we can support in the meantime.



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