Module arrow_array::array

The concrete array definitions

Re-exports

• pub use crate::types::ArrowPrimitiveType;

Structs

• BooleanArray
  Array of bools
• DictionaryArray
  A dictionary array where each element is a single value indexed by an integer key. This is mostly used to represent strings or a limited set of primitive types as integers, for example when doing NLP analysis or representing chromosomes by name.
• FixedSizeBinaryArray
  An array where each element is a fixed-size sequence of bytes.
• FixedSizeListArray
  A list array where each element is a fixed-size sequence of values with the same type whose maximum length is represented by a i32.
• GenericByteArray
  Generic struct for variable-size byte arrays
• GenericListArray
  Generic struct for a variable-size list array.
• MapArray
  A nested array type where each record is a key-value map. Keys should always be non-null, but values can be null.
• NativeAdapter
  This struct is used as an adapter when creating PrimitiveArray from an iterator. FromIterator for PrimitiveArray takes an iterator where the elements can be into this struct. So once implementing From or Into trait for a type, an iterator of the type can be collected to PrimitiveArray.
• NullArray
  An Array where all elements are nulls
• PrimitiveArray
  Array whose elements are of primitive types.
• RunArray
  A run-end encoding (REE) is a variation of run-length encoding (RLE).
• StructArray
  A nested array type where each child (called field) is represented by a separate array.
• TypedDictionaryArray
  A strongly-typed wrapper around a DictionaryArray that implements ArrayAccessor allowing fast access to its elements
• TypedRunArray
  A strongly-typed wrapper around a RunArray that implements ArrayAccessor and IntoIterator allowing fast access to its elements
• UnionArray
  An Array that can represent slots of varying types.

Traits

• Array
  Trait for dealing with different types of array at runtime when the type of the array is not known in advance.
• ArrayAccessor
  A generic trait for accessing the values of an Array
• OffsetSizeTrait
  trait declaring an offset size, relevant for i32 vs i64 array types.

Functions

• make_array
  Constructs an array using the input data. Returns a reference-counted Array instance.
• new_empty_array
  Creates a new empty array
• new_null_array
  Creates a new array of data_type of length length filled entirely of NULL values

Type Definitions

• ArrayRef
  A reference-counted reference to a generic Array.
• BinaryArray
  An array where each element contains 0 or more bytes. The byte length of each element is represented by an i32.
• Date32Array
  A primitive array where each element is of 32-bit value representing the elapsed time since UNIX epoch in days.“
• Date64Array
  A primitive array where each element is a 64-bit value representing the elapsed time since the UNIX epoch in milliseconds.
• Decimal128Array
  An array where each element is a 128-bits decimal with precision in [1, 38] and scale less or equal to 38.
• Decimal256Array
  An array where each element is a 256-bits decimal with precision in [1, 76] and scale less or equal to 76.
• DurationMicrosecondArray
  An array where each element is an elapsed time type in microseconds.
• DurationMillisecondArray
  An array where each element is an elapsed time type in milliseconds.
• DurationNanosecondArray
  An array where each element is an elapsed time type in nanoseconds.
• DurationSecondArray
  An array where each element is an elapsed time type in seconds.
• Float16Array
  Example: Using collect
• Float32Array
  Example: Using collect
• Float64Array
  Example: Using collect
• GenericBinaryArray
  See BinaryArray and LargeBinaryArray for storing binary data.
• GenericStringArray
  Generic struct for [Large]StringArray
• Int8Array
  Example: Using collect
• Int8DictionaryArray
  A dictionary array where each element is a single value indexed by an integer key.
• Int16Array
  Example: Using collect
• Int16DictionaryArray
  A dictionary array where each element is a single value indexed by an integer key.
• Int16RunArray
  A RunArray array where run ends are stored using i16 data type.
• Int32Array
  Example: Using collect
• Int32DictionaryArray
  A dictionary array where each element is a single value indexed by an integer key.
• Int32RunArray
  A RunArray array where run ends are stored using i32 data type.
• Int64Array
  Example: Using collect
• Int64DictionaryArray
  A dictionary array where each element is a single value indexed by an integer key.
• Int64RunArray
  A RunArray array where run ends are stored using i64 data type.
• IntervalDayTimeArray
  An array where each element is a “calendar” interval days and milliseconds.
• IntervalMonthDayNanoArray
  An array where each element is a “calendar” interval in months, days, and nanoseconds.
• IntervalYearMonthArray
  An array where each element is a “calendar” interval in months.
• LargeBinaryArray
  An array where each element contains 0 or more bytes. The byte length of each element is represented by an i64.
• LargeListArray
  A list array where each element is a variable-sized sequence of values with the same type whose memory offsets between elements are represented by a i64.
• LargeStringArray
  An array where each element is a variable-sized sequence of bytes representing a string whose maximum length (in bytes) is represented by a i64.
• ListArray
  A list array where each element is a variable-sized sequence of values with the same type whose memory offsets between elements are represented by a i32.
• StringArray
  An array where each element is a variable-sized sequence of bytes representing a string whose maximum length (in bytes) is represented by a i32.
• Time32MillisecondArray
  An array where each element is of 32-bit type representing time elapsed in milliseconds since midnight.
• Time32SecondArray
  An array where each element is of 32-bit type representing time elapsed in seconds since midnight.
• Time64MicrosecondArray
  An array where each element is of 64-bit type representing time elapsed in microseconds since midnight.
• Time64NanosecondArray
  An array where each element is of 64-bit type representing time elapsed in nanoseconds since midnight.
• TimestampMicrosecondArray
  A primitive array where each element is of type TimestampMicrosecondType. See examples for TimestampSecondArray.
• TimestampMillisecondArray
  A primitive array where each element is of type TimestampMillisecondType. See examples for TimestampSecondArray.
• TimestampNanosecondArray
  A primitive array where each element is of type TimestampNanosecondType. See examples for TimestampSecondArray.
• TimestampSecondArray
  A primitive array where each element is of type TimestampSecondType. See also Timestamp.
• UInt8Array
  Example: Using collect
• UInt8DictionaryArray
  A dictionary array where each element is a single value indexed by an integer key.
• UInt16Array
  Example: Using collect
• UInt16DictionaryArray
  A dictionary array where each element is a single value indexed by an integer key.
• UInt32Array
  Example: Using collect
• UInt32DictionaryArray
  A dictionary array where each element is a single value indexed by an integer key.
• UInt64Array
  Example: Using collect
• UInt64DictionaryArray
  A dictionary array where each element is a single value indexed by an integer key.