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Posted to issues@arrow.apache.org by "Neal Richardson (Jira)" <ji...@apache.org> on 2020/02/07 23:37:00 UTC
[jira] [Assigned] (ARROW-7796) [R] write_* functions should
invisibly return their inputs
[ https://issues.apache.org/jira/browse/ARROW-7796?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Neal Richardson reassigned ARROW-7796:
--------------------------------------
Assignee: Sam Albers
> [R] write_* functions should invisibly 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
> Assignee: Sam Albers
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.0.0
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
>
> 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. A quick illustration:
> {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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