polars.DataFrame.set_sorted

DataFrame.set_sorted(
    column: str,
    *,
    descending: bool = False,
    nulls_last: bool = False,
) → DataFrame

Flag a column as sorted.

This can speed up future operations.

Parameters:

column

Column that is sorted

descending

Whether the column is sorted in descending order.

nulls_last

Whether the nulls are at the end.

Warning

This can lead to incorrect results if the data is NOT sorted!! Use with care!