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https://issues.apache.org/jira/browse/ARROW-8726?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francois Saint-Jacques updated ARROW-8726:
------------------------------------------
Component/s: (was: R)
C++
> [C++][Dataset] Mis-specified DirectoryPartitioning incorrectly uses the file
> name as value
> ------------------------------------------------------------------------------------------
>
> Key: ARROW-8726
> URL: https://issues.apache.org/jira/browse/ARROW-8726
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Jonathan Keane
> Assignee: Francois Saint-Jacques
> Priority: Major
> Labels: dataset, pull-request-available
> Fix For: 1.0.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Calling filter + collect on a dataset with a mis-specified partitioning
> causes a segfault. Though this is clearly input error, it would be nice if
> there was some guidance that something was wrong with the partitioning.
> {code:r}
> library(arrow)
> library(dplyr)
> dir.create("multi_mtcars/one", recursive = TRUE)
> dir.create("multi_mtcars/two", recursive = TRUE)
> write_parquet(mtcars, "multi_mtcars/one/mtcars.parquet")
> write_parquet(mtcars, "multi_mtcars/two/mtcars.parquet")
> ds <- open_dataset("multi_mtcars", partitioning = c("level", "nothing"))
> # the following will segfault
> ds %>%
> filter(cyl > 8) %>%
> collect()
> {code}
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