daft.Expression.str.upper#
- Expression.str.upper() Expression [source]#
Convert UTF-8 string to all upper
Example
>>> import daft >>> df = daft.from_pydict({"x": ["foo", "bar", "baz"]}) >>> df = df.select(df["x"].str.upper()) >>> df.show() ╭──────╮ │ x │ │ --- │ │ Utf8 │ ╞══════╡ │ FOO │ ├╌╌╌╌╌╌┤ │ BAR │ ├╌╌╌╌╌╌┤ │ BAZ │ ╰──────╯ (Showing first 3 of 3 rows)
- Returns:
a String expression which is
self
uppercased- Return type:
Expression