ARROW-17880: [Go] Add support for Decimal128 and Decimal256 to CSV writer

[mitchdevenport]

No description provided.

[github-actions]

https://issues.apache.org/jira/browse/ARROW-17880

[zeroshade]

LGTM, when all the tests pass I'll merge it in. Thanks much!!

[zeroshade]

@mitchdevenport That said, could you create a JIRA card to add decimal128 and decimal256 to the CSV reader side? (or if you feel like it, you can incorporate it into this PR, that's up to you). It would be great to keep the types that can be written and the types that can be read in sync, but it doesn't have to be in this same change.

If you don't end up rolling it into this change, I'll try to find the time to add it to the reader after ApacheCon next week.

Thanks again!

[mitchdevenport]

@mitchdevenport That said, could you create a JIRA card to add decimal128 and decimal256 to the CSV reader side? (or if you feel like it, you can incorporate it into this PR, that's up to you). It would be great to keep the types that can be written and the types that can be read in sync, but it doesn't have to be in this same change.

If you don't end up rolling it into this change, I'll try to find the time to add it to the reader after ApacheCon next week.

Thanks again!

@zeroshade Yep, no problem! Intended to make it a separate change but was unsure if the original JIRA would close on merge or not. I've updated the original ticket to be specific to the writer and have a filed a new ticket to track the reader changes: https://issues.apache.org/jira/browse/ARROW-17899

[zeroshade]

Yes, this ticket will close on merge :)

[ursabot]

Benchmark runs are scheduled for baseline = fc9a0e7 and contender = d77176e. d77176e is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Finished ⬇️0.0% ⬆️0.0%] ec2-t3-xlarge-us-east-2
[Failed ⬇️0.61% ⬆️0.07%] test-mac-arm
[Failed ⬇️0.0% ⬆️0.0%] ursa-i9-9960x
[Finished ⬇️0.14% ⬆️0.0%] ursa-thinkcentre-m75q
Buildkite builds:
[Finished] d77176e4 ec2-t3-xlarge-us-east-2
[Finished] d77176e4 test-mac-arm
[Failed] d77176e4 ursa-i9-9960x
[Finished] d77176e4 ursa-thinkcentre-m75q
[Finished] fc9a0e76 ec2-t3-xlarge-us-east-2
[Failed] fc9a0e76 test-mac-arm
[Failed] fc9a0e76 ursa-i9-9960x
[Finished] fc9a0e76 ursa-thinkcentre-m75q
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python, R. Runs only benchmarks with cloud = True
test-mac-arm: Supported benchmark langs: C++, Python, R
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java