This appears to be the pertinent documentation polars::prelude::IpcWriter which says "Available on crate feature polars-io only". However, if I add polars = { version = "0.36.2", features = ["polars-io"] } to my Cargo.toml, it still isn't found. I looked through the polars code and it appears that the ipc feature might be required so I add that. Then I get an error that it failed the custom build for zstd-sys v2.0.9+zstd.1.5.5. I think that's a compression library which I shouldn't need for what I'm doing, so I try to figure out how to remove it from the build. But between disabling default features and adding things back in, I haven't found a combination that will build (ie. exclude zstd) and give me the Arrow support I need.
Is there a way to exclude zstd from the build? Or if easier, get the zstd build to succeed.
It appears there is no way to disable the zstd dependency. The IpcWriter is only compiled under the ipc or ipc_streaming features of polars-io, both of which activate polars-arrow/io_ipc_compression, and that activates the zstd dependency.