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# Description Instead of collecting the frame and returning the columns of the collected frame when using paths $df.column_name or $df.0 this creates expressions: ```nu > ❯ : let df = polars open /tmp/foo.parquet > ❯ : $df | polars select $df.pid | polars first 5 | polars collect ╭───┬───────╮ │ # │ pid │ ├───┼───────┤ │ 0 │ 45280 │ │ 1 │ 45252 │ │ 2 │ 45242 │ │ 3 │ 45241 │ │ 4 │ 45207 │ ╰───┴───────╯ > ❯ : $df | polars select $df.0 | polars first 5 | polars collect ╭───┬───────╮ │ # │ pid │ ├───┼───────┤ │ 0 │ 45280 │ │ 1 │ 45252 │ │ 2 │ 45242 │ │ 3 │ 45241 │ │ 4 │ 45207 │ ╰───┴───────╯ ``` --------- Co-authored-by: Jack Wright <jack.wright@nike.com>