Create Order By multiple columns for DataFrame

[0xcafebabee]

System information

• OS version/distro: Windows 10
• .NET Version (eg., dotnet --info): netstandard2.0

Issue

Please provide new functionality for DataFrames: Order By multiple columns, for example:

// Arrange

Column0	Column1	Column2	Column3
AAA	1	1212	1313
BBB	3	99	1616
CCC	2	98	1717
DDD	2	97	1818
EEE	1	1111	1515
FFF	1	1212	1414

// Act

DataFrame.OrderBy(new [] { "Column1", "Column2", "Column3" })

// Assert

Column0	Column1	Column2	Column3
EEE	1	1111	1515
AAA	1	1212	1313
FFF	1	1212	1414
DDD	2	97	1818
CCC	2	98	1717
BBB	3	99	1616

[ericstj]

CC @pgovind @eerhardt

[pgovind]

Dupe of #5649.

Support for multiple group by wasn't high priority when GroupBy was implemented, but I will make a run at this after .NET 6 work winds down and there's more time.

[janbodnar]

Any updates on this issue?

https://stackoverflow.com/questions/76901645/sort-dataframe-by-multiple-columns-in-c-sharp/76959227

[0xcafebabee]

I made it on my own codebase (not in github) - I think I can provide the same functionality in this repository

[superichmann]

?

[avernigora-clgx]

@pgovind any good news on groupby ? 😆

[0xcafebabee]

Ok, will create PR on this shortly ))

…

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