[ARROW-14519] [C++] joins segfault when data contains list column

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.0.1, 7.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/30074
• Assignee: David Li
• Reporter: Nicola Crane
• Created: 29/Oct/21 16:53
• Updated: 11/Jan/23 08:40
• Resolved: 06/Nov/21 13:49

Description

When I run the R code below, it results in a segfault if one of the tables contains a list column.

library(arrow)
library(dplyr)

basic_tbl <- arrow_table(
  tibble::tibble(
    x = 1:3,
    y = c("a", "b", "c")
  )
)

basic_tbl2 <- arrow_table(
  tibble::tibble(
    x = 1:3,
    z = c(T, F, T)
  )
)

list_tbl <- arrow_table(
  tibble::tibble(
    z = list(c("first", "list", "col", "row"), c("second row ", "here")),
    x = 1:2
  )
)

# works
left_join(basic_tbl, basic_tbl2) %>%
  collect()

# segfaults
left_join(basic_tbl, list_tbl) %>%
  collect()

Issue Links

• is related to: ARROW-15731 [C++] Enable joins when data contains a list column
• links to: GitHub Pull Request #11625