daft.functions.length_bytes#

def length_bytes(expr: Expression) -> Expression:
    """Retrieves the length for a UTF-8 string column in bytes.

    Returns:
        Expression: an UInt64 expression with the length of each string

    Examples:
        >>> import daft
        >>> from daft.functions import length_bytes
        >>> df = daft.from_pydict({"x": ["😉test", "hey̆", "baz"]})
        >>> df = df.select(length_bytes(df["x"]))
        >>> df.show()
        ╭────────╮
        │ x      │
        │ ---    │
        │ UInt64 │
        ╞════════╡
        │ 8      │
        ├╌╌╌╌╌╌╌╌┤
        │ 5      │
        ├╌╌╌╌╌╌╌╌┤
        │ 3      │
        ╰────────╯
        <BLANKLINE>
        (Showing first 3 of 3 rows)

    """
    return Expression._call_builtin_scalar_fn("length_bytes", expr)