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Generic bytes dictionary builder #3426

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merged 5 commits into from
Jan 3, 2023

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viirya
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@viirya viirya commented Jan 1, 2023

Which issue does this PR close?

Closes #3425.

Rationale for this change

What changes are included in this PR?

Are there any user-facing changes?

@github-actions github-actions bot added the arrow Changes to the arrow crate label Jan 1, 2023
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Love it, I believe this also adds support for LargeStringArray and LargeBinaryArray which is 👍

Comment on lines 127 to 128
where
<T as ByteArrayType>::Native: AsRef<<T as ByteArrayType>::Native> + AsRef<[u8]>,
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It took me a long while to work out why this is necessary, and it is because there isn't a blanket implementation of T: AsRef<T>.

I wonder if we could add this constraint to ByteArrayType directly, and allow removing this constraint?

type Native: bytes::ByteArrayNativeType + AsRef<Self::Native> + AsRef<[u8]> + ?Sized;

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Yea, that works to remove the constraint.

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Moved the constraint to ByteArrayType and also added types for LargeStringDictionaryBuilder and LargeBinaryDictionaryBuilder.

arrow-select/src/take.rs Outdated Show resolved Hide resolved
@@ -609,7 +612,7 @@ where
})?;

if array.is_valid(index) {
let s = array.value(index).as_ref();
let s: &[u8] = array.value(index).as_ref();
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Does this technically mean this is an API change? That's kind of unintentional, but not necessarily a problem 😅

Co-authored-by: Raphael Taylor-Davies <[email protected]>
@tustvold tustvold merged commit 08a976f into apache:master Jan 3, 2023
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ursabot commented Jan 3, 2023

Benchmark runs are scheduled for baseline = 6139d89 and contender = 08a976f. 08a976f 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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Generic bytes dictionary builder
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