Polars Cross Join does not work with required args. #14585
Description
Describe the bug
The left_on and right_on positional arguments are required for all polars join commands, but this does not work for the --cross switch.
How to reproduce
1..3 | polars into-df | polars join --cross (4..6 | polars into-df)
Results in error: nu::parser::missing_positional, Missing required positional argument
If I name the columns and try to use those as left_on and right_on:
1..3 | each {|x| {x: $x}} | polars into-df | polars join --cross (4..6 | each {|y| {y: $y}} | polars into-df) x y
Results in error: a 'cross' join doesn't expect any join key
Expected behavior
Positional arguments should not be required when using the --cross switch on a polars join command.
Configuration
| key | value |
|---|---|
| version | 0.100.0 |
| major | 0 |
| minor | 100 |
| patch | 0 |
| branch | |
| commit_hash | |
| build_os | macos-aarch64 |
| build_target | aarch64-apple-darwin |
| rust_version | rustc 1.82.0 (f6e511eec 2024-10-15) (built from a source tarball) |
| cargo_version | cargo 1.82.0 (8f40fc59f 2024-08-21) |
| build_time | 1980-01-01 00:00:00 +00:00 |
| build_rust_channel | release |
| allocator | mimalloc |
| features | default, sqlite, trash |
| installed_plugins | emoji 0.9.0, polars 0.100.0, query 0.100.0 |