[jira] [Updated] (ARROW-13887) [R] Capture error produced when reading in CSV file with headers and using a schema, and add suggestion

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

     [ https://issues.apache.org/jira/browse/ARROW-13887?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nic Crane updated ARROW-13887:
------------------------------
    Summary: [R] Capture error produced when reading in CSV file with headers and using a schema, and add suggestion  (was: [R] Error when reading in CSV file with headers and using a schema)

> [R] Capture error produced when reading in CSV file with headers and using a schema, and add suggestion
> -------------------------------------------------------------------------------------------------------
>
>                 Key: ARROW-13887
>                 URL: https://issues.apache.org/jira/browse/ARROW-13887
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: R
>            Reporter: Nic Crane
>            Priority: Major
>
> When reading in a CSV with headers, and also using a schema, we get an error as the code tries to read in the header as a line of data.
> {code:java}
> share_data <- tibble::tibble(
>   company = c("AMZN", "GOOG", "BKNG", "TSLA"),
>   price = c(3463.12, 2884.38, 2300.46, 732.39),
>   date = rep(as.Date("2021-09-03"), 4)
> )
> readr::write_csv(share_data, file = "share_data.csv")
> share_schema <- schema(
>   company = utf8(),
>   price = float64(),
>   date = date32()
> )
> read_csv_arrow("share_data.csv", schema = share_schema)
> {code}
> {code:java}
> Error: Invalid: In CSV column #1: CSV conversion error to double: invalid value 'price'
> /home/nic2/arrow/cpp/src/arrow/csv/converter.cc:492 decoder_.Decode(data, size, quoted, &value)
> /home/nic2/arrow/cpp/src/arrow/csv/parser.h:84 status
> /home/nic2/arrow/cpp/src/arrow/csv/converter.cc:496 parser.VisitColumn(col_index, visit) {code}



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