Parquet.Net 3.1.4

Pure .NET library to read and write Apache Parquet files, targeting .NET 4.5 and .NET Standand 1.4 and up. Linux, Windows and Mac are first class citizens, but also works everywhere .NET is running (Android, iOS, IOT). Has zero dependencies on thrid-party libraries or any native code. Provides both low-level access to Apache Parquet files, and high-level utilities for more traditional and humanly understandable row-based access. Includes automatic serializer/deserializer from C# classes into parquet files that works by generating MSIL (bytecode) on the fly and is therefore super fast.

There is a newer version of this package available.
See the version list below for details.
Install-Package Parquet.Net -Version 3.1.4
dotnet add package Parquet.Net --version 3.1.4
<PackageReference Include="Parquet.Net" Version="3.1.4" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Parquet.Net --version 3.1.4
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

3.1.3, 3.1.4:
- includes massive performance improvements in parquet reader, now we are faster than fastparquet (python lib)  

3.1.2:
- new feature: replaced default ToString() method in Table and Row object to produce json (#346)
- new feature: parquet CLI supports conversion from parquet to json (#341)

3.1.1:
parq cli improvements

3.1.0:
- re-introducing utilities for row-based access allowing you to access and create parquet files in more readable format.
- Field class now supports MaxRepetitionLevel and MaxDefinitionLevel
- fixed bug #334 preventing reading generated files in Impala
- parquet.net library supports SourceLink

3.0.5:
- #321 bug fixed: a nullable field should support all-non-nullable values
- performance improvement around packing definition levels

3.0.4:
- bug fixed: Cannot read schema where map elements are structures (#320)

3.0.3
- critical bug fixed: reading parquet files with multiple pages doesn't read beyond 1st page (#318)
   
3.0.2
- performance improvements (#317)

3.0.1
- improvement: better column validation in row group writer
- bug fixed: Snappy compression writer fails on certain encodings (#315)

3.0.0
the first release of a major rewrite

Showing the top 1 GitHub repositories that depend on Parquet.Net:

Repository Stars
dotnet/machinelearning
ML.NET is an open source and cross-platform machine learning framework for .NET.

Read more about the GitHub Usage information on our documentation.

Version History

Version Downloads Last updated
3.6.0 4,265 1/23/2020
3.5.3 4,072 1/8/2020
3.5.2 293 1/3/2020
3.5.1 179 12/31/2019
3.5.0 1,897 12/18/2019
3.4.3 427 12/16/2019
3.4.2 170 12/13/2019
3.4.1 128 12/11/2019
3.4.0 70 12/11/2019
3.3.11 1,885 12/1/2019
3.3.10 4,581 11/6/2019
3.3.9 54,635 8/15/2019
3.3.8 3,825 8/1/2019
3.3.7 103 8/1/2019
3.3.6 108 7/31/2019
3.3.5 4,978 7/5/2019
3.3.4 90,535 3/11/2019
3.3.3 8,896 2/1/2019
3.3.2 12,332 1/21/2019
3.3.1 1,031 1/14/2019
3.3.0 414 1/11/2019
3.2.6 213 1/11/2019
3.2.5 1,994 1/3/2019
3.2.4 2,195 11/21/2018
3.2.3 8,436 11/7/2018
3.2.2 831 10/30/2018
3.2.1 195 10/30/2018
3.2.0 711 10/24/2018
3.1.4 367 10/15/2018
3.1.3 190 10/15/2018
3.1.2 2,496 10/11/2018
3.1.1 531 10/4/2018
3.1.0 278 10/3/2018
3.1.0-preview-390 175 10/3/2018
3.1.0-preview-373 291 10/2/2018
3.0.5 4,096 8/13/2018
3.0.4 357 7/25/2018
3.0.3 221 7/25/2018
3.0.2 715 7/24/2018
3.0.1 219 7/24/2018
3.0.0 756 7/19/2018
2.1.4 27,502 6/7/2018
2.1.3 175,362 3/30/2018
2.1.2 13,584 1/10/2018
2.1.1 22,157 12/1/2017
2.1.0 516 11/29/2017
2.0.1 281 11/27/2017
2.0.0 342 11/27/2017
1.5.1 863 11/14/2017
1.4.0 2,830 10/23/2017
1.3.0 1,756 9/12/2017
1.2.139 383 9/6/2017
1.1.128 364 8/15/2017
1.0.114 335 7/31/2017
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