Method to_array

datafusion/expr-common/src/columnar_value.rs:186–191

Convert any [`Self::Scalar`] into an Arrow [`ArrayRef`] with the specified number of rows by repeating the same scalar multiple times, which is not as efficient as handling the scalar directly. [`Self::Array`] will just be returned as is. See [`Self::to_array_of_size`] if you need to validate the length of the output array. See [`Self::values_to_arrays`] to convert multiple columnar values into

(&self, num_rows: usize)

    ///
    /// Errors if `self` is a Scalar that fails to be converted into an array of size
    pub fn to_array(&self, num_rows: usize) -> Result<ArrayRef> {
        Ok(match self {
            ColumnarValue::Array(array) => Arc::clone(array),
            ColumnarValue::Scalar(scalar) => scalar.to_array_of_size(num_rows)?,
        })
    }

    /// Convert a columnar value into an Arrow [`ArrayRef`] with the specified
    /// number of rows. [`Self::Scalar`] is converted by repeating the same