Module arrow::compute

Computation kernels on Arrow Arrays

Re-exports

• pub use self::kernels::comparison::*;

Modules

• kernels
  Computation kernels on Arrow Arrays

Structs

• CastOptions
  CastOptions provides a way to override the default cast behaviors
• FilterBuilder
  A builder to construct FilterPredicate
• FilterPredicate
  A filtering predicate that can be applied to an Array
• LexicographicalComparator
  A lexicographical comparator that wraps given array data (columns) and can lexicographically compare data at given two indices. The lifetime is the same at the data wrapped.
• Partitions
  A computed set of partitions, see partition
• SlicesIterator
  An iterator of (usize, usize) each representing an interval [start, end) whose slots of a bitmap Buffer are true.
• SortColumn
  One column to be used in lexicographical sort
• SortOptions
  Options that define the sort order of a given column
• TakeOptions
  Options that define how take should behave

Enums

• DatePart
  Valid parts to extract from date/time/timestamp arrays.

Functions

• and
  Performs AND operation on two arrays. If either left or right value is null then the result is also null.
• and_kleene
  Logical ‘and’ boolean values with Kleene logic
• and_not
  Performs AND_NOT operation on two arrays. If either left or right value is null then the result is also null.
• binary
  Allies a binary infallable function to two PrimitiveArrays, producing a new PrimitiveArray
• binary_mut
  Applies a binary and infallible function to values in two arrays, replacing the values in the first array in place.
• bit_and
  Returns the bitwise and of all non-null input values.
• bit_or
  Returns the bitwise or of all non-null input values.
• bit_xor
  Returns the bitwise xor of all non-null input values.
• bool_and
  Returns true if all non-null input values are true, otherwise false.
• bool_or
  Returns true if any non-null input value is true, otherwise false.
• build_filterDeprecated
  Returns a prepared function optimized to filter multiple arrays.
• can_cast_types
  Return true if a value of type from_type can be cast into a value of to_type.
• cast
  Cast array to the provided data type and return a new Array with type to_type, if possible.
• cast_with_options
  Try to cast array to to_type if possible.
• concat
  Concatenate multiple Array of the same type into a single ArrayRef.
• concat_batches
  Concatenates batches together into a single RecordBatch.
• date_part
  Given an array, return a new array with the extracted DatePart as signed 32-bit integer values.
• dayDeprecated
  Extracts the day of a given temporal primitive array as an array of integers
• day_dynDeprecated
  Extracts the day of a given temporal array as an array of integers.
• doyDeprecated
  Extracts the day of year of a given temporal primitive array as an array of integers.
• doy_dynDeprecated
  Extracts the day of year of a given temporal array as an array of integers.
• filter
  Returns a filtered values Array where the corresponding elements of predicate are true.
• filter_record_batch
  Returns a filtered RecordBatch where the corresponding elements of predicate are true.
• hourDeprecated
  Extracts the hours of a given temporal primitive array as an array of integers within the range of [0, 23].
• hour_dynDeprecated
  Extracts the hours of a given array as an array of integers within the range of [0, 23]. If the given array isn’t temporal primitive or dictionary array, an Err will be returned.
• interleave
  Takes elements by index from a list of Array, creating a new Array from those values.
• interleave_record_batch
  Interleave rows by index from multiple RecordBatch instances and return a new RecordBatch.
• is_not_null
  Returns a non-null BooleanArray with whether each value of the array is not null.
• is_null
  Returns a non-null BooleanArray with whether each value of the array is null.
• lexicographical_partition_rangesDeprecated
  Use partition instead. Given a list of already sorted columns, find partition ranges that would partition lexicographically equal values across columns.
• lexsort
  Sort a list of ArrayRef using SortOptions provided for each array.
• lexsort_to_indices
  Sort elements lexicographically from a list of ArrayRef into an unsigned integer (UInt32Array) of indices.
• max
  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_array
  Returns the max of values in the array of ArrowNumericType type, or dictionary array with value of ArrowNumericType type.
• max_binary
  Returns the maximum value in the binary array, according to the natural order.
• max_binary_view
  Returns the maximum value in the binary view array, according to the natural order.
• max_boolean
  Returns the maximum value in the boolean array
• max_string
  Returns the maximum value in the string array, according to the natural order.
• max_string_view
  Returns the maximum value in the string view array, according to the natural order.
• microsecondDeprecated
  Extracts the microseconds of a given temporal primitive array as an array of integers
• microsecond_dynDeprecated
  Extracts the microseconds of a given temporal primitive array as an array of integers. If the given array isn’t temporal primitive or dictionary array, an Err will be returned.
• millisecondDeprecated
  Extracts the milliseconds of a given temporal primitive array as an array of integers
• millisecond_dynDeprecated
  Extracts the milliseconds of a given temporal primitive array as an array of integers. If the given array isn’t temporal primitive or dictionary array, an Err will be returned.
• min
  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_array
  Returns the min of values in the array of ArrowNumericType type, or dictionary array with value of ArrowNumericType type.
• min_binary
  Returns the minimum value in the binary array, according to the natural order.
• min_binary_view
  Returns the minimum value in the binary view array, according to the natural order.
• min_boolean
  Returns the minimum value in the boolean array.
• min_string
  Returns the minimum value in the string array, according to the natural order.
• min_string_view
  Returns the minimum value in the string view array, according to the natural order.
• minuteDeprecated
  Extracts the minutes of a given temporal primitive array as an array of integers
• minute_dynDeprecated
  Extracts the minutes of a given temporal array as an array of integers. If the given array isn’t temporal primitive or dictionary array, an Err will be returned.
• monthDeprecated
  Extracts the month of a given temporal primitive array as an array of integers within the range of [1, 12].
• month_dynDeprecated
  Extracts the month of a given temporal array as an array of integers. If the given array isn’t temporal primitive or dictionary array, an Err will be returned.
• multiply_fixed_point
  Perform left * right operation on two decimal arrays. If either left or right value is null then the result is also null.
• multiply_fixed_point_checked
  Perform left * right operation on two decimal arrays. If either left or right value is null then the result is also null.
• multiply_fixed_point_dyn
  Perform left * right operation on two decimal arrays. If either left or right value is null then the result is also null.
• nanosecondDeprecated
  Extracts the nanoseconds of a given temporal primitive array as an array of integers
• nanosecond_dynDeprecated
  Extracts the nanoseconds of a given temporal primitive array as an array of integers. If the given array isn’t temporal primitive or dictionary array, an Err will be returned.
• not
  Performs unary NOT operation on an arrays. If value is null then the result is also null.
• nullif
  Returns a new array with the same values and the validity bit to false where the corresponding element ofright is true.
• num_days_from_mondayDeprecated
  Extracts the day of week of a given temporal primitive array as an array of integers.
• num_days_from_monday_dynDeprecated
  Extracts the day of week of a given temporal array as an array of integers.
• num_days_from_sundayDeprecated
  Extracts the day of week of a given temporal primitive array as an array of integers, starting at Sunday.
• num_days_from_sunday_dynDeprecated
  Extracts the day of week of a given temporal array as an array of integers, starting at Sunday.
• or
  Performs OR operation on two arrays. If either left or right value is null then the result is also null.
• or_kleene
  Logical ‘or’ boolean values with Kleene logic
• partial_sort
  It’s unstable_sort, may not preserve the order of equal elements
• partition
  Given a list of lexicographically sorted columns, computes the Partitions, where a partition consists of the set of consecutive rows with equal values
• prep_null_mask_filter
  Remove null values by do a bitmask AND operation with null bits and the boolean bits.
• quarterDeprecated
  Extracts the quarter of a given temporal primitive array as an array of integers within the range of [1, 4].
• quarter_dynDeprecated
  Extracts the quarter of a given temporal array as an array of integersa within the range of [1, 4]. If the given array isn’t temporal primitive or dictionary array, an Err will be returned.
• rank
  Assigns a rank to each value in array based on its position in the sorted order
• regexp_is_match
  Return BooleanArray indicating which strings in an array match an array of regular expressions.
• regexp_is_match_scalar
  Return BooleanArray indicating which strings in an array match a single regular expression.
• regexp_is_match_utf8Deprecated
  Perform SQL array ~ regex_array operation on StringArray / LargeStringArray. If regex_array element has an empty value, the corresponding result value is always true.
• regexp_is_match_utf8_scalarDeprecated
  Perform SQL array ~ regex_array operation on StringArray / LargeStringArray and a scalar.
• regexp_match
  Extract all groups matched by a regular expression for a given String array.
• secondDeprecated
  Extracts the seconds of a given temporal primitive array as an array of integers
• second_dynDeprecated
  Extracts the seconds of a given temporal array as an array of integers. If the given array isn’t temporal primitive or dictionary array, an Err will be returned.
• shift
  Shifts array by defined number of items (to left or right) A positive value for offset shifts the array to the right a negative value shifts the array to the left.
• sort
  Sort the ArrayRef using SortOptions.
• sort_limit
  Sort the ArrayRef partially.
• sort_to_indices
  Sort elements from ArrayRef into an unsigned integer (UInt32Array) of indices. Floats are sorted using IEEE 754 totalOrder. limit is an option for partial_sort.
• sum
  Returns the sum of values in the primitive array.
• sum_array
  Returns the sum of values in the array.
• sum_array_checked
  Returns the sum of values in the array.
• sum_checked
  Returns the sum of values in the primitive array.
• take
  Take elements by index from Array, creating a new Array from those indexes.
• take_arrays
  For each ArrayRef in the Vec<ArrayRef>, take elements by index and create a new Vec<ArrayRef> from those indices.
• take_record_batch
  Take rows by index from RecordBatch and returns a new RecordBatch from those indexes.
• try_binary
  Applies the provided fallible binary operation across a and b.
• try_binary_mut
  Applies the provided fallible binary operation across a and b by mutating the mutable PrimitiveArray a with the results.
• try_unary
  See PrimitiveArray::try_unary
• try_unary_dynDeprecated
  Applies a fallible unary function to an array with primitive values.
• try_unary_mut
  See PrimitiveArray::try_unary_mut
• unary
  See PrimitiveArray::unary
• unary_dynDeprecated
  Applies an infallible unary function to an array with primitive values.
• unary_mut
  See PrimitiveArray::unary_mut
• union_extract
  Returns the value of the target field when selected, or NULL otherwise.
• using_chrono_tz_and_utc_naive_date_timeDeprecated
  Parse the given string into a string representing fixed-offset that is correct as of the given UTC NaiveDateTime.
• weekDeprecated
  Extracts the week of a given temporal primitive array as an array of integers
• week_dynDeprecated
  Extracts the week of a given temporal array as an array of integers. If the given array isn’t temporal primitive or dictionary array, an Err will be returned.
• yearDeprecated
  Extracts the years of a given temporal primitive array as an array of integers
• year_dynDeprecated
  Extracts the years of a given temporal array as an array of integers. If the given array isn’t temporal primitive or dictionary array, an Err will be returned.

Type Aliases

• FilterDeprecated
  Function that can filter arbitrary arrays