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Posted to issues@arrow.apache.org by "Zsolt Kegyes-Brassai (Jira)" <ji...@apache.org> on 2021/01/28 08:29:00 UTC
[jira] [Created] (ARROW-11413) dplyr filter is not working for
datasets
Zsolt Kegyes-Brassai created ARROW-11413:
--------------------------------------------
Summary: dplyr filter is not working for datasets
Key: ARROW-11413
URL: https://issues.apache.org/jira/browse/ARROW-11413
Project: Apache Arrow
Issue Type: Bug
Components: R
Affects Versions: 3.0.0, 2.0.0
Environment: i7, windows 10 laptop
Reporter: Zsolt Kegyes-Brassai
I was trying to recreate the [vignette|https://arrow.apache.org/docs/r/articles/dataset.html] on datasets and dplyr on a win10 machine. I downloaded the data for 2 consecutive years (2017, 2018) to my laptop.
The filter is working only for variables used for partitioning. When I am inserting any other variable (like the total_amount) the R/RStudio session hangs: no error message and more interestingly no detectable CPU load nor disk usage (task manager) for many minutes.
I experienced the same issue both with arrow 2.0.0 and 3.0.0 (just I update my R packages this morning). Previously, I already tried to reinstall the arrow 2.0.0 package.
Did I misunderstand something in the vignette? Is there any OS limitation?
{code:java}
//
> library(arrow)Attaching package: 'arrow'The following object is masked from 'package:utils': timestamp> library(tidyverse)
-- Attaching packages ---------------------------------------------------------------------- tidyverse 1.3.0 --
v ggplot2 3.3.3 v purrr 0.3.4
v tibble 3.0.5 v dplyr 1.0.3
v tidyr 1.1.2 v stringr 1.4.0
v readr 1.4.0 v forcats 0.5.1
-- Conflicts ------------------------------------------------------------------------- tidyverse_conflicts() --
x dplyr::filter() masks stats::filter()
x dplyr::lag() masks stats::lag()
> arrow_available()
[1] TRUE
> arrow_info()
Arrow package version: 3.0.0Capabilities:
s3 TRUE
snappy TRUE
gzip TRUE
brotli FALSE
zstd TRUE
lz4 TRUE
lz4_frame TRUE
lzo FALSE
bz2 FALSE
jemalloc FALSE
mimalloc TRUEMemory:
Allocator mimalloc
Current 0 bytes
Max 0 bytes>
> ds <- open_dataset(taxidir, partitioning = c("year", "month"))
> ds
FileSystemDataset with 24 Parquet files
vendor_id: string
pickup_at: timestamp[us]
dropoff_at: timestamp[us]
passenger_count: int8
trip_distance: float
rate_code_id: string
store_and_fwd_flag: string
pickup_location_id: int32
dropoff_location_id: int32
payment_type: string
fare_amount: float
extra: float
mta_tax: float
tip_amount: float
tolls_amount: float
improvement_surcharge: float
total_amount: float
year: int32
month: int32See $metadata for additional Schema metadata
>
> a <- ds %>%
+ select(year, total_amount) %>% collect()
>
> b <- ds %>%
+ filter(year == 2018) %>%
+ select(year, total_amount) %>% collect()
>
> c <- ds %>%
+ filter(total_amount > 100) %>%
+ select(year, total_amount) %>% collect(){code}
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