[jira] [Updated] (ARROW-17458) [C++] CSV Writer: Unsupported cast from decimal to utf8

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-17458?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-17458:
-----------------------------------
    Labels: csv decimal good-first-issue good-second-issue pull-request-available unsupported  (was: csv decimal good-first-issue good-second-issue unsupported)

> [C++] CSV Writer: Unsupported cast from decimal to utf8 
> --------------------------------------------------------
>
>                 Key: ARROW-17458
>                 URL: https://issues.apache.org/jira/browse/ARROW-17458
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++
>    Affects Versions: 6.0.1
>            Reporter: Pavel Kovalenko
>            Assignee: Quang Hoang
>            Priority: Critical
>              Labels: csv, decimal, good-first-issue, good-second-issue, pull-request-available, unsupported
>             Fix For: 10.0.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> The following code snippet fails with an Unsupported cast error if a table has a decimal column.
> {code:cpp}
> std::shared_ptr<arrow::Table> table;
> ARROW_CHECK_OK(reader->ReadAll(&table));
> std::shared_ptr<arrow::io::OutputStream> output = arrow::io::FileOutputStream::Open(csvPath).ValueOrDie();
> auto writeOptions = arrow::csv::WriteOptions::Defaults();
> writeOptions.include_header = false;
> auto status = arrow::csv::WriteCSV(*table, writeOptions, output.get());
> if (!status.ok()) {
>     SETHROW_ERROR(std::runtime_error, "Couldn't write table csv: {}", status.message());
> }
> {code}
> {code:cpp}
> Unsupported cast from decimal128(7, 2) to utf8 using function cast_string
> {code}



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