[ARROW-14321] [R] segfault converting dictionary ChunkedArray with 0 chunks

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.0.0
• Component/s: R
• Labels: pull-request-available query-engine
• External issue URL: https://github.com/apache/arrow/issues/29893
• Assignee: Weston Pace
• Reporter: Jonathan Keane
• Created: 14/Oct/21 15:37
• Updated: 11/Jan/23 08:39
• Resolved: 16/Oct/21 17:04

Description

It appears to happen when one of the filter parts has no matching rows:

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()

Issue Links

• is duplicated by: ARROW-14344 [R][Python] Crash when reading empty .feather file
• links to: GitHub Pull Request #11428