polars get-day for dataframe

Gets day from date.

Signature

> polars get-day {flags}

Input/output types:

inputoutput
anyany

Examples

Returns day from a date

> let dt = ('2020-08-04T16:39:18+00:00' | into datetime --timezone 'UTC');
    let df = ([$dt $dt] | polars into-df);
    $df | polars get-day
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