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https://issues.apache.org/jira/browse/ARROW-7825?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Neal Richardson closed ARROW-7825.
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Assignee: Neal Richardson
Resolution: Won't Fix
Now that wisdom has prevailed and {{stringsAsFactors=FALSE}} by default in R
4.0, I don't think we need to add anything to the arrow docs. Feel free to
reopen and submit a PR if you feel strongly otherwise.
> [R] Update docs to clarify that stringsAsFactors isn't relevant for
> parquet/feather
> -----------------------------------------------------------------------------------
>
> Key: ARROW-7825
> URL: https://issues.apache.org/jira/browse/ARROW-7825
> Project: Apache Arrow
> Issue Type: Improvement
> Components: R
> Affects Versions: 0.16.0
> Environment: Linux 64-bit 5.4.15
> Reporter: Keith Hughitt
> Assignee: Neal Richardson
> Priority: Major
> Labels: R, parquet
>
> Same issue as reported for feather::read_feather
> (https://issues.apache.org/jira/browse/ARROW-7823);
>
> For the R arrow package, the "read_parquet()" function currently does not
> respect "options(stringsAsFactors = FALSE)", leading to
> unexpected/inconsistent behavior.
>
> *Example:*
>
>
> {code:java}
> library(arrow)
> library(readr)
> options(stringsAsFactors = FALSE)
> write_tsv(head(iris), 'test.tsv')
> write_parquet(head(iris), 'test.parquet')
> head(read.delim('test.tsv', sep='\t')$Species)
> # [1] "setosa" "setosa" "setosa" "setosa" "setosa" "setosa"
> head(read_tsv('test.tsv', col_types = cols())$Species)
> # [1] "setosa" "setosa" "setosa" "setosa" "setosa" "setosa"
> head(read_parquet('test.parquet')$Species)
> # [1] setosa setosa setosa setosa setosa setosa
> # Levels: setosa versicolor virginica
> {code}
>
>
> *Versions:*
> - R 3.6.2
> - arrow_0.15.1.9000
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