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Make DecimalArray as PrimitiveArray #2857

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merged 6 commits into from Oct 13, 2022
Merged

Make DecimalArray as PrimitiveArray #2857

merged 6 commits into from Oct 13, 2022

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viirya
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@viirya viirya commented Oct 11, 2022 •
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Which issue does this PR close?

Part of #2637.

Rationale for this change

What changes are included in this PR?

Are there any user-facing changes?

@viirya viirya marked this pull request as draft October 11, 2022 08:18
@github-actions github-actions bot added arrow Changes to the arrow crate parquet Changes to the parquet crate labels Oct 11, 2022
@viirya viirya force-pushed the decimal_primitive_array branch 6 times, most recently from adeca0e to de451bb Compare October 11, 2022 20:00
@viirya viirya marked this pull request as ready for review October 11, 2022 21:13
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viirya commented Oct 11, 2022

Hopefully to move this forward.

cc @sunchao @tustvold

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tustvold reviewed Oct 12, 2022
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Thank you for this, just got off a 26 hour flight so will review this more thoroughly once my brain is functioning again properly. Only major comment is regards to validation, which I think can be relaxed

arrow-array/src/array/primitive_array.rs Outdated
/// # Safety
///
/// This doesn't validate decimal values with specified precision.
pub unsafe fn unchecked_with_precision_and_scale(
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The move to PrimitiveArray implicitly means away from validating the contents for overflow, as any value of the underlying primitive is permitted.

I think we should therefore make this safe, and remove any value validation except for when this method is explicitly called by the user, as an opt-in

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viirya commented Oct 12, 2022

These clippy errors are not from this change but due to recent change on invalid_html_tags, fixing it at #2862.

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alamb commented Oct 12, 2022

cc @liukun4515

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alamb commented Oct 12, 2022

If / when this PR is ready to merge, I would like to try to update DataFusion to use it (to understand what kind of changes will be needed in downstream crates). Please let me know @viirya and @tustvold

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I think this is a good improvement and brings us closer to the vision of #2857. I think we should get this in, to start the process of updating the dependencies (something I fully intend to help out with), and continue to refine this in subsequent PRs.

I've taken the liberty of resolving the merge conflicts

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viirya commented Oct 13, 2022

Thanks @tustvold @alamb

@tustvold tustvold merged commit eeb1261 into apache:master Oct 13, 2022
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ursabot commented Oct 13, 2022

Benchmark runs are scheduled for baseline = fa1d079 and contender = eeb1261. eeb1261 is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ec2-t3-xlarge-us-east-2] ec2-t3-xlarge-us-east-2
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on test-mac-arm] test-mac-arm
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-i9-9960x] ursa-i9-9960x
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-thinkcentre-m75q] ursa-thinkcentre-m75q
Buildkite builds:
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

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This was referenced Oct 14, 2022
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@alamb alamb added the api-change Changes to the arrow API label Oct 14, 2022
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DataFusion upgrade PR - apache/datafusion#3844

@tustvold tustvold mentioned this pull request Oct 16, 2022
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@alamb alamb mentioned this pull request Oct 28, 2022
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