parquet-dotnet
https://github.com/aloneguid/parquet-dotnet
C#
Fully managed Apache Parquet implementation
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- Issues
- [BUG]: DeserializeAsync(rowGroupIndex:) allocates a result list sized to the whole file, causing OOM on large files
- gzip write default compression level changed from Optimal to SmallestSize in 6.0 (undocumented)
- [FEATURE REQUEST]: PascalCase to snake_case
- [BUG]: Cannot serialize/deserialize byte arrays
- [BUG]: Rename ParquetSerializerOptions to ParquetOptions
- Add back link to Parquet.FSharp
- [BUG]: Guid/UUID min/max statistics appear to use .NET Guid byte order
- Allow non-nullable ListField
- [BUG]: Reading time
- Encryption support (footer key)
- Docs
- C# not yet supported