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Infer 2020-03-19 00:00:00 as timestamp not Date64 in CSV (#3744) #3746

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merged 2 commits into from
Feb 23, 2023

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tustvold
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@tustvold tustvold commented Feb 22, 2023

Which issue does this PR close?

Closes #3744

Rationale for this change

As per https://lists.apache.org/thread/q036r1q3cw5ysn3zkpvljx3s9ho18419 Date64 should not be used for time data.

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 Feb 22, 2023
@tustvold tustvold marked this pull request as ready for review February 22, 2023 20:01
} else {
DataType::Utf8
#[derive(Default, Copy, Clone)]
struct InferredDataType {
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This logic should be significantly faster as an added bonus

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👍

@tustvold tustvold merged commit e753dea into apache:master Feb 23, 2023
@tustvold tustvold added the api-change Changes to the arrow API label Feb 23, 2023
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ursabot commented Feb 23, 2023

Benchmark runs are scheduled for baseline = 6bf0aab and contender = e753dea. e753dea 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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CSV reader infers Date64 type for fields like "2020-03-19 00:00:00" that it can't parse to Date64
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