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ARROW-14167: [C++][R] Directly support dictionaries in coalesce #11272

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This was omitted from ARROW-13390. Note that even after this, there's work for ARROW-14105 to unify the type promotion rules and make them apply to dictionary indices/values as well. Contains some changes from ARROW-13358 and also updates case_when's promotion rules a bit.

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⚠️ Ticket has not been started in JIRA, please click 'Start Progress'.

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pitrou commented Oct 4, 2021

Of course, this needs rebasing now :-)

@lidavidm lidavidm force-pushed the arrow-14167 branch 2 times, most recently from b3f22ff to 2442c35 Compare October 5, 2021 15:17
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lidavidm commented Oct 5, 2021

Rebased (looks like MacOS/Travis tests are failing because of Homebrew/thirdparty dependencies)

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ianmcook commented Nov 9, 2021

I pushed an addition to the R tests that verifies that this works from the R bindings.

@ianmcook ianmcook changed the title ARROW-14167: [C++] Directly support dictionaries in coalesce ARROW-14167: [C++][R] Directly support dictionaries in coalesce Nov 9, 2021
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lidavidm commented Nov 9, 2021

Great, thanks Ian!

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+1, thank you!

@pitrou pitrou closed this in 575a437 Nov 10, 2021
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ursabot commented Nov 10, 2021

Benchmark runs are scheduled for baseline = bb776d8 and contender = 575a437. 575a437 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 ⬇️0.0% ⬆️0.53%] ursa-i9-9960x
[Finished ⬇️0.13% ⬆️0.0%] ursa-thinkcentre-m75q
Supported benchmarks:
ursa-i9-9960x: langs = Python, R, JavaScript
ursa-thinkcentre-m75q: langs = C++, Java
ec2-t3-xlarge-us-east-2: cloud = True

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4 participants