[jira] [Created] (ARROW-14989) [R] Update num_rows methods to output doubles not integers to prevent integer overflow

["Nicola Crane (Jira)" <ji...@apache.org>]

Nicola Crane created ARROW-14989:
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             Summary: [R] Update num_rows methods to output doubles not integers to prevent integer overflow
                 Key: ARROW-14989
                 URL: https://issues.apache.org/jira/browse/ARROW-14989
             Project: Apache Arrow
          Issue Type: Improvement
          Components: R
            Reporter: Nicola Crane


In cases where Arrow objects are particularly large, this can result in an integer overflow when returning their size.  See discussion on https://github.com/apache/arrow/pull/11783 for more details of a possible solution.


{code:r}
library(arrow)
test_array1 <- Array$create(raw(2^31 - 1))
test_array2 <- Array$create(raw(1))
big_chunked <- chunked_array(test_array1, test_array2)

big_table <- Table$create(col = big_chunked)
big_table$num_rows
# NA
{code}




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