parquet-dotnet
https://github.com/aloneguid/parquet-dotnet
C#
Fully managed Apache Parquet implementation
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- Issues
- [BUG]: Cannot serialize/deserialize byte arrays
- [BUG]: Guid/UUID min/max statistics appear to use .NET Guid byte order
- Allow non-nullable ListField
- Encryption support (footer key)
- NAOT Warning: TypeExtensions.GetNullable(Type)
- DELTA_BINARY_PACKED on DateTime
- Class de/serialization: please support annotating Int64 as [ParquetTimestamp(ParquetTimestampResolution.Nanoseconds)]
- Ability to specify custom deserialization for a specific type
- [BUG]: Very large parquet files cannot be read
- Stricter generic / runtime class type validation in serializer
- Docs
- C# not yet supported