Nic Crane created ARROW-12792:
---------------------------------
Summary: [R] FileSystemDataset incorrectly reports CSVs as parquet
files
Key: ARROW-12792
URL: https://issues.apache.org/jira/browse/ARROW-12792
Project: Apache Arrow
Issue Type: Bug
Components: R
Reporter: Nic Crane
Assignee: Nic Crane
I was running the following code:
{code:java}
tf <- tempfile()
dir.create(tf)
on.exit(unlink(tf))
write_csv_arrow(mtcars[1:5,], file.path(tf, "file1.csv"))
write_csv_arrow(mtcars[6:11,], file.path(tf, "file2.csv"))
# ds <- open_dataset(c(file.path(tf, "file1.csv"), file.path(tf, "file2.csv")))
ds <- open_dataset(c(file.path(tf, "file1.csv"), file.path(tf, "file2.csv")),
schema = Table$create(mtcars)$schema
)
{code}
But when I print the ds object, it reports that the files are Parquet files not
CSVs
> ds
FileSystemDataset with 2 Parquet files
mpg: double
cyl: double
disp: double
hp: double
drat: double
wt: double
qsec: double
vs: double
am: double
gear: double
carb: double
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