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read_delta is implemented in Python, not on the Rust side. So the CLI does not have access to it.
I would be in favor of adding this, but it's not an easy one. I believe @ritchie46 mentioned at one point that he preferred to have the read_delta functionality on the Python side only, but I'm not really sure why (maybe I am misremembering).
The dependency we use for read_delta in Python is implemented in Rust, so it's probably possible to have this on the Rust side.
Delta-rs uses arrow-rs, so we would need to compile a whole new arrow implementation. We could add it under a separate crate that users could draw in if they want to pay the compilation cost.
Problem description
The Polars CLI supports
read_csv
andread_parquet
, but it doesn't look likeread_delta
is supported yet.Polars supports
read_delta
, so I am hoping it won't be too hard to add it to the Polars CLI.The text was updated successfully, but these errors were encountered: