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@jiangzhx jiangzhx commented Feb 27, 2023

Which issue does this PR close?

Closes #4974.

What changes are included in this PR?

Add datafusion_expr::stddev to continue work with #5226

@github-actions github-actions bot added the logical-expr Logical plan and expressions label Feb 27, 2023
@jiangzhx jiangzhx changed the title Add Expr::stddev Add expr_fn::stddev Feb 27, 2023
@jiangzhx jiangzhx marked this pull request as draft February 27, 2023 13:44
@jiangzhx jiangzhx marked this pull request as ready for review February 27, 2023 13:44
@alamb alamb merged commit 25b4f67 into apache:main Feb 28, 2023
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ursabot commented Feb 28, 2023

Benchmark runs are scheduled for baseline = d966984 and contender = 25b4f67. 25b4f67 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-datafusion-commits is not supported on ec2-t3-xlarge-us-east-2] ec2-t3-xlarge-us-east-2
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on test-mac-arm] test-mac-arm
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on ursa-i9-9960x] ursa-i9-9960x
[Skipped ⚠️ Benchmarking of arrow-datafusion-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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Is there a describe method on DataFrame like Polars?

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