[jira] [Resolved] (ARROW-14321) [R] segfault converting dictionary ChunkedArray with 0 chunks

["Ben Kietzman (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-14321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ben Kietzman resolved ARROW-14321.
----------------------------------
    Resolution: Fixed

Issue resolved by pull request 11428
[https://github.com/apache/arrow/pull/11428]

> [R] segfault converting dictionary ChunkedArray with 0 chunks
> -------------------------------------------------------------
>
>                 Key: ARROW-14321
>                 URL: https://issues.apache.org/jira/browse/ARROW-14321
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: R
>            Reporter: Jonathan Keane
>            Assignee: Weston Pace
>            Priority: Major
>              Labels: query-engine
>             Fix For: 6.0.0
>
>
> It appears to happen when one of the filter parts has no matching rows:
> {code:r}
> library(arrow)
> library(dplyr)
> first_date <- lubridate::ymd_hms("2015-04-29 03:12:39")
> df1 <- tibble::tibble(
>   int = 1:10,
>   dbl = as.numeric(1:10),
>   lgl = rep(c(TRUE, FALSE, NA, TRUE, FALSE), 2),
>   chr = letters[1:10],
>   fct = factor(LETTERS[1:10]),
>   ts = first_date + lubridate::days(1:10)
> )
> ds <- InMemoryDataset$create(df1)
> # works
> ds %>% 
>   filter(int < 8) %>%
>   arrange(dbl) %>%
>   collect()
> # segfaults
> ds %>% 
>   filter(int < 8, int > 55) %>%
>   arrange(dbl) %>%
>   collect()
>  segfaults
> ds %>% 
>   filter(int < 0) %>%
>   arrange(dbl) %>%
>   collect()
> {code}



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