Module arrow2::datatypes[−][src]

A logical DataType and its associated metadata per Arrow specification

An ordered sequence of Field with optional metadata.

The set of supported logical types. Each variant uniquely identifies a logical type, which define specific semantics to the data (e.g. how it should be represented). Each variant has a corresponding PhysicalType, obtained via DataType::to_physical_type, which declares the in-memory representation of data. The DataType::Extension is special in that it augments a DataType with metadata to support custom types. Use to_logical_type to desugar such type and return its correspoding logical type.

the set of valid indices types of a dictionary-encoded Array. Each type corresponds to a variant of crate::array::DictionaryArray.

Interval units defined in Arrow

The set of physical types: unique in-memory representations of an Arrow array. A physical type has a one-to-many relationship with a crate::datatypes::DataType and a one-to-one mapping to each struct in this crate that implements crate::array::Array.

The set of all (physical) primitive types. Each type corresponds to a variant of crate::array::PrimitiveArray.

The time units defined in Arrow.

typedef for Arc<Schema>.