Module builtins 

Built-in compression schemes that use only vortex-array encodings.

These schemes produce arrays using types already in vortex-array (ConstantArray, DictArray, MaskedArray, etc.) and have no external encoding crate dependencies.

Structs

BoolConstantScheme

Constant encoding for bool arrays where all valid values are the same.

FloatConstantScheme

Constant encoding for float arrays with a single distinct value.

FloatDictScheme

Dictionary encoding for low-cardinality float values.

IntConstantScheme

Constant encoding for integer arrays with a single distinct value.

IntDictScheme

Dictionary encoding for low-cardinality integer values.

StringConstantScheme

Constant encoding for string arrays with a single distinct value.

StringDictScheme

Dictionary encoding for low-cardinality string values.

Functions

float_dictionary_encode

Compresses a floating-point array into a dictionary array according to attached stats.

integer_dictionary_encode

Compresses an integer array into a dictionary array according to attached stats.

is_float_primitive

Returns true if the canonical form represents a floating-point primitive.

is_integer_primitive

Returns true if the canonical array is a primitive with an integer ptype.

is_utf8_string

Returns true if the canonical array is a UTF-8 string type.