Parquet.Net 1.2.139

A .NET library to read and write Apache Parquet files.

There is a newer version of this package available.
See the version list below for details.
Install-Package Parquet.Net -Version 1.2.139
dotnet add package Parquet.Net --version 1.2.139
<PackageReference Include="Parquet.Net" Version="1.2.139" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Parquet.Net --version 1.2.139
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

v1.2
new features:
- INT64 (C# long) type is supported (#194)
- Decimal datatype is fully supported (#209). This includes support for simple System.Decimal, and decimal types with different scales and precisions. Decimals are encoded by utilising all three encodings from parquet specs, however this can be switched off for compatibility with older system. Decimals are fully compatible with Hive and Impala which have some edge cases not complying with parquet specifications. Thanks to @dmitryPavliv and @nzapolski for making this possible

bugs fixed:
- fixed a flaw in dictionary encoding implementation affecting files written for AWS Impala (#193)
- when a column contains only single value and it's null Parquet.Net was crashing (#198)

v1.1
new features:
- Reader supports nested structures.
- Parquet output is now compatible with AWS Athena
- Writer can append data to existing file

improvements:
- Parquet metadata sets page sizes according to standard
- Schema and SchemaElement has Show method allowing to get user readable representation

bug fixes:
- some files mix encodings between data pages resulting in wrong count of rows and occasional crashes (#183)
- some string encoded fields not annotated properly were crashing Parquet.Net reader (#138)

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.

Version History

Version Downloads Last updated
3.3.9 1,621 8/15/2019
3.3.8 1,668 8/1/2019
3.3.7 61 8/1/2019
3.3.6 65 7/31/2019
3.3.5 1,918 7/5/2019
3.3.4 68,748 3/11/2019
3.3.3 6,292 2/1/2019
3.3.2 5,120 1/21/2019
3.3.1 438 1/14/2019
3.3.0 274 1/11/2019
3.2.6 153 1/11/2019
3.2.5 1,678 1/3/2019
3.2.4 1,787 11/21/2018
3.2.3 5,355 11/7/2018
3.2.2 610 10/30/2018
3.2.1 154 10/30/2018
3.2.0 524 10/24/2018
3.1.4 326 10/15/2018
3.1.3 153 10/15/2018
3.1.2 720 10/11/2018
3.1.1 493 10/4/2018
3.1.0 186 10/3/2018
3.1.0-preview-390 138 10/3/2018
3.1.0-preview-373 237 10/2/2018
3.0.5 3,718 8/13/2018
3.0.4 310 7/25/2018
3.0.3 172 7/25/2018
3.0.2 665 7/24/2018
3.0.1 171 7/24/2018
3.0.0 648 7/19/2018
2.1.4 23,936 6/7/2018
2.1.3 127,189 3/30/2018
2.1.2 7,199 1/10/2018
2.1.1 17,782 12/1/2017
2.1.0 467 11/29/2017
2.0.1 232 11/27/2017
2.0.0 286 11/27/2017
1.5.1 676 11/14/2017
1.4.0 2,747 10/23/2017
1.3.0 1,576 9/12/2017
1.2.139 334 9/6/2017
1.1.128 312 8/15/2017
1.0.114 281 7/31/2017
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