Hi Pearu,

This email landed in my spam folder, and likely in others' spam folders. It
seems this has been a common problem recently.

Thanks for your persistence. I reviewed the PR and left some comments.

Ian

On Fri, Oct 2, 2026 at 6:04 AM Pearu Peterson <[email protected]>
wrote:

> Hi all,
>
> I opened https://github.com/apache/arrow/pull/50146 almost four months
> ago.
> It has had no review from a committer yet, and I'd like to ask how best to
> get it reviewed and merged.
>
> The PR lets the CSV reader use ConvertOptions::timestamp_parsers as a
> fallback, after ISO-8601, for columns explicitly typed as date32, date64,
> time32 or time64. Currently, those columns accept only strict ISO-8601, so
> values such as 15-OCT-15 with %d-%b-%y fail even when a matching parser is
> configured. Without timestamp_parsers the behavior is unchanged, and type
> inference is unchanged too.
>
> This PR addresses several long-standing issues, some of which have been
> open for years:
> - GH-28303 (open since 2021-04): unable to read date32/date64 in a specific
> format from CSV
> - GH-33357 (open since 2022-10): allow timestamp_parsers for date types
> - GH-31816 (open since 2022-05): strptime %b/%B fails on Windows
> - GH-31971 (open since 2022-05): strptime %p fails on Windows
> - GH-37180 (open since 2023-08): partly addressed, now works with
> timestamp_parsers=[ISO8601]
> - GH-41488 (open since 2024-05): the umbrella issue collecting the above
>
> What would be the best way to move this forward? Is there someone familiar
> with the CSV reader who could take a look?
>
> Best regards,
> Pearu
>

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