daft.functions.total_milliseconds#

def total_milliseconds(expr: Expression) -> Expression:
    """Calculates the total number of milliseconds for a duration column.

    Returns:
        Expression: a UInt64 expression with the total number of milliseconds for a duration column

    Examples:
        >>> import datetime
        >>> import daft
        >>> from daft.functions import total_milliseconds
        >>> df = daft.from_pydict(
        ...     {
        ...         "duration": [
        ...             datetime.timedelta(seconds=1),
        ...             datetime.timedelta(milliseconds=1),
        ...             datetime.timedelta(microseconds=1),
        ...             datetime.timedelta(days=1),
        ...             datetime.timedelta(hours=1),
        ...             datetime.timedelta(minutes=1),
        ...         ]
        ...     }
        ... )
        >>> df.with_column("Total Milliseconds", total_milliseconds(df["duration"])).show()
        ╭──────────────┬────────────────────╮
        │ duration     ┆ Total Milliseconds │
        │ ---          ┆ ---                │
        │ Duration[us] ┆ Int64              │
        ╞══════════════╪════════════════════╡
        │ 1s           ┆ 1000               │
        ├╌╌╌╌╌╌╌╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┤
        │ 1000µs       ┆ 1                  │
        ├╌╌╌╌╌╌╌╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┤
        │ 1µs          ┆ 0                  │
        ├╌╌╌╌╌╌╌╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┤
        │ 1d           ┆ 86400000           │
        ├╌╌╌╌╌╌╌╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┤
        │ 1h           ┆ 3600000            │
        ├╌╌╌╌╌╌╌╌╌╌╌╌╌╌┼╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┤
        │ 1m           ┆ 60000              │
        ╰──────────────┴────────────────────╯
        <BLANKLINE>
        (Showing first 6 of 6 rows)
    """
    return Expression._call_builtin_scalar_fn("total_milliseconds", expr)