Function arrow_arith::temporal::num_days_from_sunday

pub fn num_days_from_sunday<T>(
    array: &PrimitiveArray<T>
) -> Result<Int32Array, ArrowError>where
    T: ArrowTemporalType + ArrowNumericType,
    i64: From<T::Native>,

Extracts the day of week of a given temporal primitive array as an array of integers, starting at Sunday.

Sunday is encoded as 0, Monday as 1, etc.

See also num_days_from_monday which starts at Monday.