Enum DType

pub enum DType {
    Null,
    Bool(Nullability),
    Primitive(PType, Nullability),
    Utf8(Nullability),
    Binary(Nullability),
    Struct(StructDType, Nullability),
    List(Arc<DType>, Nullability),
    Extension(Arc<ExtDType>),
}

The logical types of elements in Vortex arrays.

Vortex arrays preserve a single logical type, while the encodings allow for multiple physical ways to encode that type.

Variants

Null

The logical null type (only has a single value, null)

Bool(Nullability)

The logical boolean type (true or false if non-nullable; true, false, or null if nullable)

Primitive(PType, Nullability)

Primitive, fixed-width numeric types (e.g., u8, i8, u16, i16, u32, i32, u64, i64, f32, f64)

Utf8(Nullability)

UTF-8 strings

Binary(Nullability)

Binary data

Struct(StructDType, Nullability)

A struct is composed of an ordered list of fields, each with a corresponding name and DType TODO(ngates): we may want StructDType to be Arc<Field> instead so it’s only a single Arc.

List(Arc<DType>, Nullability)

A variable-length list type, parameterized by a single element DType

Extension(Arc<ExtDType>)

User-defined extension types

Implementations

impl DType

pub const BYTES: Self = _

The default DType for bytes

pub const IDX: Self = _

The default DType for indices

pub const IDX_32: Self = _

The DType for small indices (primarily created from bitmaps)

pub fn nullability(&self) -> Nullability

Get the nullability of the DType

pub fn is_nullable(&self) -> bool

Check if the DType is nullable

pub fn as_nonnullable(&self) -> Self

Get a new DType with Nullability::NonNullable (but otherwise the same as self)

pub fn as_nullable(&self) -> Self

Get a new DType with Nullability::Nullable (but otherwise the same as self)

pub fn with_nullability(&self, nullability: Nullability) -> Self

Get a new DType with the given nullability (but otherwise the same as self)

pub fn eq_ignore_nullability(&self, other: &Self) -> bool

Check if self and other are equal, ignoring nullability

pub fn is_struct(&self) -> bool

Check if self is a StructDType

pub fn is_unsigned_int(&self) -> bool

Check if self is an unsigned integer

pub fn is_signed_int(&self) -> bool

Check if self is a signed integer

pub fn is_int(&self) -> bool

Check if self is an integer (signed or unsigned)

pub fn is_float(&self) -> bool

Check if self is a floating point number

pub fn is_boolean(&self) -> bool

Check if self is a boolean

pub fn as_struct(&self) -> Option<&StructDType>

Get the StructDType if self is a StructDType, otherwise None

Trait Implementations

impl Clone for DType

fn clone(&self) -> DType

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for DType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<PType> for &DType

fn from(item: PType) -> Self

Converts to this type from the input type.

impl From<PType> for DType

fn from(item: PType) -> Self

Converts to this type from the input type.

impl Hash for DType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for DType

fn eq(&self, other: &DType) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for DType

fn partial_cmp(&self, other: &DType) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl TryFrom<&DType> for PType

type Error = VortexError

The type returned in the event of a conversion error.

fn try_from(value: &DType) -> VortexResult<Self>

Performs the conversion.

impl Eq for DType

impl StructuralPartialEq for DType