Method total_bytes_len

arrow-array/src/array/byte_view_array.rs:692–702

Returns the total number of bytes of all non-null values in this array. Unlike [`Self::total_buffer_bytes_used`], this method includes inlined strings (those with length ≤ [`MAX_INLINE_VIEW_LEN`]), making it suitable as a capacity hint when pre-allocating output buffers. Null values are excluded from the sum. # Example ```rust # use arrow_array::StringViewArray; let array = StringViewArray::fr

(&self)

    /// assert_eq!(array.total_bytes_len(), 5 + 27);
    /// ```
    pub fn total_bytes_len(&self) -> usize {
        match self.nulls() {
            None => self.views().iter().map(|v| (*v as u32) as usize).sum(),
            Some(nulls) => self
                .views()
                .iter()
                .zip(nulls.iter())
                .map(|(v, is_valid)| if is_valid { (*v as u32) as usize } else { 0 })
                .sum(),
        }
    }

    /// Returns the total number of bytes used by all non inlined views in all
    /// buffers.