Module arrow2::compute::aggregate

Available on crate feature compute_aggregate only.

Contains different aggregation functions

Traits

• SimdOrd
  Trait describing a type describing multiple lanes with an order relationship consistent with the same order of T.
• Sum
  Object that can reduce itself to a number. This is used in the context of SIMD to reduce a MD (e.g. [f32; 16]) into a single number (f32).

Functions

• can_max
  Whether max supports data_type
• can_min
  Whether min supports data_type
• can_sum
  Whether sum supports data_type
• estimated_bytes_size
  Returns the total (heap) allocated size of the array in bytes.
• max
  Returns the maximum of Array. The scalar is null when all elements are null.
• max_binary
  Returns the maximum value in the binary array, according to the natural order.
• max_boolean
  Returns the maximum value in the boolean array
• max_primitive
  Returns the maximum value in the array, according to the natural order. For floating point arrays any NaN values are considered to be greater than any other non-null value
• max_string
  Returns the maximum value in the string array, according to the natural order.
• min
  Returns the minimum of Array. The scalar is null when all elements are null.
• min_binary
  Returns the minimum value in the binary array, according to the natural order.
• min_boolean
  Returns the minimum value in the boolean array.
• min_primitive
  Returns the minimum value in the array, according to the natural order. For floating point arrays any NaN values are considered to be greater than any other non-null value
• min_string
  Returns the minimum value in the string array, according to the natural order.
• sum
  Returns the sum of all elements in array as a Scalar of the same physical and logical types as array.
• sum_primitive
  Returns the sum of values in the array.
• sum_slice
  Compute the sum of a slice