Enum Stat

#[repr(u8)]
pub enum Stat {
    IsConstant = 0,
    IsSorted = 1,
    IsStrictSorted = 2,
    Max = 3,
    Min = 4,
    Sum = 5,
    NullCount = 6,
    UncompressedSizeInBytes = 7,
}

Variants

IsConstant = 0

Whether all values are the same (nulls are not equal to other non-null values, so this is true iff all values are null or all values are the same non-null value)

IsSorted = 1

Whether the non-null values in the array are sorted (i.e., we skip nulls)

IsStrictSorted = 2

Whether the non-null values in the array are strictly sorted (i.e., sorted with no duplicates)

Max = 3

The maximum value in the array (ignoring nulls, unless all values are null)

Min = 4

The minimum value in the array (ignoring nulls, unless all values are null)

Sum = 5

The sum of the non-null values of the array.

NullCount = 6

The number of null values in the array

UncompressedSizeInBytes = 7

The uncompressed size of the array in bytes

Implementations

impl Stat

pub fn is_commutative(&self) -> bool

Whether the statistic is commutative (i.e., whether merging can be done independently of ordering) e.g., min/max are commutative, but is_sorted is not

pub fn has_same_dtype_as_array(&self) -> bool

Whether the statistic has the same dtype as the array it’s computed on

pub fn dtype(&self, data_type: &DType) -> Option<DType>

pub fn name(&self) -> &str

Trait Implementations

impl Clone for Stat

fn clone(&self) -> Stat

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Stat

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

Formats the value using the given formatter.

impl Display for Stat

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

Formats the value using the given formatter.

impl From<Stat> for u8

fn from(enum_value: Stat) -> Self

Converts to this type from the input type.

impl Hash for Stat

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 Ord for Stat

fn cmp(&self, other: &Stat) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Stat

fn eq(&self, other: &Stat) -> 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 Stat

fn partial_cmp(&self, other: &Stat) -> 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 Sequence for Stat

const CARDINALITY: usize = 8usize

Number of values of type Self.

fn next(&self) -> Option<Self>

Returns value following *self or None if this was the end.

fn previous(&self) -> Option<Self>

Returns value preceding *self or None if this was the beginning.

fn first() -> Option<Self>

Returns the first value of type Self.

fn last() -> Option<Self>

Returns the last value of type Self.

impl TryFrom<u8> for Stat

type Error = TryFromPrimitiveError<Stat>

The type returned in the event of a conversion error.

fn try_from(number: u8) -> Result<Self, TryFromPrimitiveError<Self>>

Performs the conversion.

impl TryFromPrimitive for Stat

const NAME: &'static str = "Stat"

type Primitive = u8

type Error = TryFromPrimitiveError<Stat>

fn try_from_primitive( number: Self::Primitive, ) -> Result<Self, TryFromPrimitiveError<Self>>

impl Copy for Stat

impl Eq for Stat

impl StructuralPartialEq for Stat