Module aliases 

Aliases & View Tuples - Lightweight Tuple Views and Fast-To-Type Aliases

Aliases for convenience and lightweight view tuple types used across the crate.

What’s here

• Record batch names: RecordBatch -> Table, ChunkedTable -> SuperTable.
• Window metadata: Offset and Length for logical row ranges; plus helpers like DictLength and BytesLength for dictionary and string buffers.
• Zero-copy views: Compact (..., Offset, Length) View-Tuple (VT) tuples (e.g. ArrayVT, BitmaskVT, StringAVT) that carry a reference to the source plus a window, without allocating.
• Ergonomic column aliases: Short forms like IntArr, FltArr, StrArr, etc. for those such inclined.

Why it exists

Many APIs only need “where to look” (offset/len) and “what to look at” (a reference). These aliases centralise the naming and keep signatures short, while remaining zero-copy.

Picking a view

• Use ArrayV (full view struct) when you want methods (typed access, null counts, etc.).
• Use VT tuples (e.g. (&Array, Offset, Length)) for the lightest possible window with no extra behavior. For inner array types, only the Array View Tuples (AVT) are provided to avoid lots of boilerplate redundancy polluting the main library and binary size.
• For fixed-width primitives you can often use native slices (&[T]) directly; VT types are provided for consistency where needed.

Feature gates

Some aliases are enabled only when relevant features are on (e.g. datetime, views, cube, chunked).

Notes

All offsets/lengths are logical row counts unless specified otherwise (e.g. BytesLength). These helpers do not copy data and are safe to clone cheaply.

Type Aliases

ArrayVT

Windowed View Tuple for Array, when one isn’t using the full ArrayView abstraction, doesn’t want to use it, couple a function signature to it or doesn’t have that feature enabled.

BitmaskVT

Windowed View Tuple for Bitmask

BoolArr

BooleanAVT

Logical windowed Array View Tuple over a Boolean array.

BytesLength

Raw bytes data length for a StringArray

CatArr

CategoricalAVT

Logical windowed Array View Tuple over a categorical array.

CategoricalAVTExt

Logical windowed Array View Tuple over a categorical array, including dictionary length.

ChunkedTable

ChunkedTable

DictLength

Dictionary field length for a DictionaryArray

FA

FieldAVT

Logical windowed Array View Tuple over an Array and its Field: ((array, offset, len), field).

FloatAVT

Logical windowed Array View Tuple over a primitive float array.

FltArr

IntArr

IntegerAVT

Logical windowed Array View Tuple over a primitive integer array.

Length

The logical length of the ArrayView. Set to arr.len() for the whole set.

Offset

The ArrayView offset lower bound, for a windowed view. Set to 0 for the whole set.

RecordBatch

RecordBatch

StrArr

StringAVT

Logical windowed Array View Tuple over a UTF-8 string array.

StringAVTExt

Logical windowed Array View Tuple over a UTF-8 string array, including byte length.