DeltaLake for .NET
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$ dotnet add package DeltaLake.NetReadme
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This package is a C# wrapper around delta-rs and implements the FFI (Foreign Function Interface) for delta-kernel-rs.
It uses the tokio-rs runtime to provide asynchronous behavior. This allows the usage of .NET Tasks and async/await to take advantage of the same behavior provided by the underlying rust library. This library also takes advantage of the Apache Arrow C Data Interface to minimize the amount of copying required to move data between runtimes.
The bridge library incorporates delta-rs, delta-kernel-rs and tokio-rs as shown in the image below.
The Delta Kernel FFI integration is pinned to releases of the Kernel, as new support is added to Kernel, support in C# will be easily extended as a fast follower. The library also benefits from Apache DataFusion SQL support, which is part of delta-rs
NOTE: On unix systems, there is the possibility of a stack overflow due to small stack sizes for the .NET framework. The default size should correspond to , but we can override this by setting the environment variable to a hexadecimal number of bytes. The unit tests use .