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https://issues.apache.org/jira/browse/ARROW-8075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17057182#comment-17057182
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Sam Albers commented on ARROW-8075:
-----------------------------------
Bah! Sorry - should've checked the nightly build. Rookie mistake :(
> [R] Loading R.utils after arrow breaks some arrow functions
> -----------------------------------------------------------
>
> Key: ARROW-8075
> URL: https://issues.apache.org/jira/browse/ARROW-8075
> Project: Apache Arrow
> Issue Type: Bug
> Components: R
> Affects Versions: 0.16.0
> Environment: - Session info
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> setting value
> version R version 3.6.3 (2020-02-29)
> os Windows 10 x64
> system x86_64, mingw32
> ui RStudio
> language (EN)
> collate English_Canada.1252
> ctype English_Canada.1252
> tz America/Los_Angeles
> date 2020-03-11
> - Packages
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> package * version date lib source
> arrow * 0.16.0.2 2020-02-14 [1] CRAN (R 3.6.2)
> 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 1.1-15.2 2020-02-10 [1] CRAN (R 3.6.2)
> bit64 0.9-7 2017-05-08 [1] CRAN (R 3.6.0)
> callr 3.4.2 2020-02-12 [1] CRAN (R 3.6.2)
> cli 2.0.2 2020-02-28 [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 2.2.2 2020-02-17 [1] CRAN (R 3.6.2)
> digest 0.6.25 2020-02-23 [1] CRAN (R 3.6.2)
> ellipsis 0.3.0 2019-09-20 [1] CRAN (R 3.6.1)
> 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)
> 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)
> packrat 0.5.0 2018-11-14 [1] CRAN (R 3.6.0)
> pkgbuild 1.0.6 2019-10-09 [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 3.4.2 2020-02-09 [1] CRAN (R 3.6.2)
> ps 1.3.2 2020-02-13 [1] CRAN (R 3.6.2)
> purrr 0.3.3 2019-10-18 [1] CRAN (R 3.6.1)
> R.methodsS3 * 1.8.0 2020-02-14 [1] CRAN (R 3.6.2)
> R.oo * 1.23.0 2019-11-03 [1] CRAN (R 3.6.1)
> R.utils * 2.9.2 2019-12-08 [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)
> remotes 2.1.1 2020-02-15 [1] CRAN (R 3.6.2)
> rlang 0.4.4 2020-01-28 [1] CRAN (R 3.6.2)
> rprojroot 1.3-2 2018-01-03 [1] CRAN (R 3.6.0)
> rstudioapi 0.11 2020-02-07 [1] CRAN (R 3.6.2)
> sessioninfo 1.1.1 2018-11-05 [1] CRAN (R 3.6.0)
> testthat 2.3.1 2019-12-01 [1] CRAN (R 3.6.2)
> tidyselect 1.0.0 2020-01-27 [1] CRAN (R 3.6.2)
> usethis 1.5.1.9000 2020-01-31 [1] Github (r-lib/usethis@c31336d)
> vctrs 0.2.3 2020-02-20 [1] CRAN (R 3.6.2)
> withr 2.1.2 2018-03-15 [1] CRAN (R 3.6.0)
> [1] C:/Users/salbers/R/win-library/3.6
> [2] C:/Program Files/R/R-3.6.3/library
> Reporter: Sam Albers
> Assignee: Neal Richardson
> Priority: Minor
> Fix For: 0.17.0
>
>
> I am writing this as an FYI because it caught me today. My hope is that maybe
> this will one day help solve a bug or act as a clue if/when you encounter
> this behaviour. I don't have any time at the moment to track exactly what is
> happening so unfortunately I am just sharing as is. The issue is when one
> loads the R.utils package after loading arrow. Again likely this is an issue
> related to R.utils and therefore not strictly a bug in arrow. Still thought
> it would be useful to share:
>
> {code:java}
> library(arrow)
> #>
> #> Attaching package: 'arrow'
> #> The following object is masked from 'package:utils':
> #>
> #> timestamp
> write_parquet(iris, 'iris.parquet')
> pq <- ParquetFileReader$create('iris.parquet')
> library(R.utils)
> #> Loading required package: R.oo
> #> Loading required package: R.methodsS3
> #> R.methodsS3 v1.8.0 (2020-02-14 07:10:20 UTC) successfully loaded. See
> ?R.methodsS3 for help.
> #> R.oo v1.23.0 successfully loaded. See ?R.oo for help.
> #>
> #> Attaching package: 'R.oo'
> #> The following object is masked from 'package:R.methodsS3':
> #>
> #> throw
> #> The following objects are masked from 'package:methods':
> #>
> #> getClasses, getMethods
> #> The following objects are masked from 'package:base':
> #>
> #> attach, detach, load, save
> #> R.utils v2.9.2 successfully loaded. See ?R.utils for help.
> #>
> #> Attaching package: 'R.utils'
> #> The following object is masked from 'package:arrow':
> #>
> #> timestamp
> #> The following object is masked from 'package:utils':
> #>
> #> timestamp
> #> The following objects are masked from 'package:base':
> #>
> #> cat, commandArgs, getOption, inherits, isOpen, nullfile, parse,
> #> warnings
> pq <- ParquetFileReader$create('iris.parquet')
> #> Error in exists(name, envir = envir, inherits = FALSE): use of NULL
> environment is defunct
> {code}
>
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