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https://issues.apache.org/jira/browse/ARROW-9218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Cortes closed ARROW-9218.
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Resolution: Not A Problem
> [R] Numeric columns turn to string when imported in R
> -----------------------------------------------------
>
> Key: ARROW-9218
> URL: https://issues.apache.org/jira/browse/ARROW-9218
> Project: Apache Arrow
> Issue Type: Bug
> Components: R
> Affects Versions: 0.17.1
> Reporter: David Cortes
> Priority: Major
>
> If I create a snappy-compressed parquet file from a DataFrame in spark or
> pandas, and then import this same file into R using:
> {code:java}
> arrow::read_parquet(the_file, as_data_frame=TRUE)
> {code}
> or
> {code:java}
> arrow::read_parquet(the_file, as_data_frame=FALSE){code}
> Then the columns that were numeric/float before will load as strings.
> Loading the same file in Python through
> {code:java}
> pd.read_parquet(the_file)
> {code}
> Will correctly interpret numeric columns as numeric.
>
> Integer columns seem to be read as integers however.
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