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Posted to issues@arrow.apache.org by "Sam Albers (Jira)" <ji...@apache.org> on 2020/02/07 17:31:00 UTC
[jira] [Created] (ARROW-7796) arrow::write_* functions should
return their inputs
Sam Albers created ARROW-7796:
---------------------------------
Summary: arrow::write_* functions should return their inputs
Key: ARROW-7796
URL: https://issues.apache.org/jira/browse/ARROW-7796
Project: Apache Arrow
Issue Type: Improvement
Components: R
Affects Versions: 0.15.1
Environment: Windows 10, R 3.6.2
Reporter: Sam Albers
I am wondering if you'd consider a slight change to what is returned by the write_* functions. In \{readr} the write functions return its input which is very useful for saving intermediate objects within a pipeline. I'd be happy to take this on and submit as a pull request.
{code:java}
library(arrow)
#>
#> Attaching package: 'arrow'
#> The following object is masked from 'package:utils':
#>
#> timestamp
library(readr)
#>
#> Attaching package: 'readr'
#> The following object is masked from 'package:arrow':
#>
#> read_table
iris_arrow <- write_parquet(iris, "iris.parquet")
iris_arrow
#> NULL
iris_readr <- write_csv(iris, "iris.csv")
head(iris_readr)
#> Sepal.Length Sepal.Width Petal.Length Petal.Width Species
#> 1 5.1 3.5 1.4 0.2 setosa
#> 2 4.9 3.0 1.4 0.2 setosa
#> 3 4.7 3.2 1.3 0.2 setosa
#> 4 4.6 3.1 1.5 0.2 setosa
#> 5 5.0 3.6 1.4 0.2 setosa
#> 6 5.4 3.9 1.7 0.4 setosa
devtools::session_info()
#> - Session info ---------------------------------------------------------------
#> setting value
#> version R version 3.6.2 (2019-12-12)
#> os Windows 10 x64
#> system x86_64, mingw32
#> ui RTerm
#> language (EN)
#> collate English_Canada.1252
#> ctype English_Canada.1252
#> tz America/Los_Angeles
#> date 2020-02-07
#>
#> - Packages -------------------------------------------------------------------
#> package * version date lib source
#> arrow * 0.15.1.20200207 2020-02-07 [1] local
#> assertthat 0.2.1 2019-03-21 [1] CRAN (R 3.6.0)
#> backports 1.1.5 2019-10-02 [1] CRAN (R 3.6.1)
#> bit 1.1-15.1 2020-01-14 [1] CRAN (R 3.6.2)
#> bit64 0.9-7 2017-05-08 [1] CRAN (R 3.6.0)
#> callr 3.4.1 2020-01-24 [1] CRAN (R 3.6.2)
#> cli 2.0.1 2020-01-08 [1] CRAN (R 3.6.2)
#> crayon 1.3.4 2017-09-16 [1] CRAN (R 3.6.0)
#> desc 1.2.0 2018-05-01 [1] CRAN (R 3.6.0)
#> devtools 2.2.1 2019-09-24 [1] CRAN (R 3.6.2)
#> digest 0.6.23 2019-11-23 [1] CRAN (R 3.6.1)
#> ellipsis 0.3.0 2019-09-20 [1] CRAN (R 3.6.1)
#> evaluate 0.14 2019-05-28 [1] CRAN (R 3.6.0)
#> fansi 0.4.1 2020-01-08 [1] CRAN (R 3.6.2)
#> fs 1.3.1 2019-05-06 [1] CRAN (R 3.6.0)
#> glue 1.3.1 2019-03-12 [1] CRAN (R 3.6.0)
#> highr 0.8 2019-03-20 [1] CRAN (R 3.6.0)
#> hms 0.5.3 2020-01-08 [1] CRAN (R 3.6.2)
#> htmltools 0.4.0 2019-10-04 [1] CRAN (R 3.6.1)
#> knitr 1.27 2020-01-16 [1] CRAN (R 3.6.2)
#> magrittr 1.5 2014-11-22 [1] CRAN (R 3.6.0)
#> memoise 1.1.0 2017-04-21 [1] CRAN (R 3.6.0)
#> pillar 1.4.3 2019-12-20 [1] CRAN (R 3.6.2)
#> pkgbuild 1.0.6 2019-10-09 [1] CRAN (R 3.6.1)
#> pkgconfig 2.0.3 2019-09-22 [1] CRAN (R 3.6.1)
#> pkgload 1.0.2 2018-10-29 [1] CRAN (R 3.6.0)
#> prettyunits 1.1.1 2020-01-24 [1] CRAN (R 3.6.2)
#> processx 3.4.1 2019-07-18 [1] CRAN (R 3.6.1)
#> ps 1.3.0 2018-12-21 [1] CRAN (R 3.6.0)
#> purrr 0.3.3 2019-10-18 [1] CRAN (R 3.6.1)
#> R6 2.4.1 2019-11-12 [1] CRAN (R 3.6.1)
#> Rcpp 1.0.3 2019-11-08 [1] CRAN (R 3.6.1)
#> readr * 1.3.1 2018-12-21 [1] CRAN (R 3.6.1)
#> remotes 2.1.0 2019-06-24 [1] CRAN (R 3.6.1)
#> rlang 0.4.3 2020-01-24 [1] CRAN (R 3.6.2)
#> rmarkdown 2.1 2020-01-20 [1] CRAN (R 3.6.2)
#> rprojroot 1.3-2 2018-01-03 [1] CRAN (R 3.6.0)
#> sessioninfo 1.1.1 2018-11-05 [1] CRAN (R 3.6.0)
#> stringi 1.4.4 2020-01-09 [1] CRAN (R 3.6.2)
#> stringr 1.4.0 2019-02-10 [1] CRAN (R 3.6.2)
#> testthat 2.3.1 2019-12-01 [1] CRAN (R 3.6.1)
#> tibble 2.1.3 2019-06-06 [1] CRAN (R 3.6.2)
#> tidyselect 0.2.5 2018-10-11 [1] CRAN (R 3.6.2)
#> usethis 1.5.1.9000 2020-01-31 [1] Github (r-lib/usethis@c31336d)
#> vctrs 0.2.2 2020-01-24 [1] CRAN (R 3.6.2)
#> withr 2.1.2 2018-03-15 [1] CRAN (R 3.6.0)
#> xfun 0.12 2020-01-13 [1] CRAN (R 3.6.2)
#> yaml 2.2.0 2018-07-25 [1] CRAN (R 3.6.2)
#>
#> [1] C:/Users/salbers/R/win-library/3.6
#> [2] C:/Program Files/R/R-3.6.2/library
{code}
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