David Cortes created ARROW-9218:
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Summary: 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
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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