Struct mz_expr::ColumnOrder

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pub struct ColumnOrder {
    pub column: usize,
    pub desc: bool,
    pub nulls_last: bool,
}
Expand description

Specification for an ordering by a column.

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§column: usize

The column index.

§desc: bool

Whether to sort in descending order.

§nulls_last: bool

Whether to sort nulls last.

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impl Arbitrary for ColumnOrder

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type Parameters = (<usize as Arbitrary>::Parameters, <bool as Arbitrary>::Parameters, <bool as Arbitrary>::Parameters)

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.
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type Strategy = Map<(<usize as Arbitrary>::Strategy, <bool as Arbitrary>::Strategy, <bool as Arbitrary>::Strategy), fn(_: (usize, bool, bool)) -> ColumnOrder>

The type of Strategy used to generate values of type Self.
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fn arbitrary_with(_top: Self::Parameters) -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args. Read more
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fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). Read more
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impl Clone for ColumnOrder

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fn clone(&self) -> ColumnOrder

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Columnation for ColumnOrder

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type InnerRegion = CopyRegion<ColumnOrder>

The type of region capable of absorbing allocations owned by the Self type. Note: not allocations of Self, but of the things that it owns.
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impl Debug for ColumnOrder

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for ColumnOrder

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Hash for ColumnOrder

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl MzReflect for ColumnOrder

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fn add_to_reflected_type_info(rti: &mut ReflectedTypeInfo)

Adds names and types of the fields of the struct or enum to rti. Read more
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impl Ord for ColumnOrder

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

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for ColumnOrder

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for ColumnOrder

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl RustType<ProtoColumnOrder> for ColumnOrder

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fn into_proto(&self) -> ProtoColumnOrder

Convert a Self into a Proto value.
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fn from_proto(proto: ProtoColumnOrder) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value. Read more
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impl Serialize for ColumnOrder

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Copy for ColumnOrder

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impl Eq for ColumnOrder

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impl StructuralPartialEq for ColumnOrder

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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Mutably borrows from an owned value. Read more
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Performs the cast.
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impl<Q, K> Comparable<K> for Q
where Q: Ord + ?Sized, K: Borrow<Q> + ?Sized,

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fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
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impl<R, O, T> CopyOnto<ConsecutiveOffsetPairs<R, O>> for T
where R: Region<Index = (usize, usize)>, O: OffsetContainer<usize>, T: CopyOnto<R>,

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fn copy_onto( self, target: &mut ConsecutiveOffsetPairs<R, O> ) -> <ConsecutiveOffsetPairs<R, O> as Region>::Index

Copy self into the target container, returning an index that allows to look up the corresponding read item.
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impl<T> CopyOnto<MirrorRegion<T>> for T
where T: Index,

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fn copy_onto(self, _target: &mut MirrorRegion<T>) -> T

Copy self into the target container, returning an index that allows to look up the corresponding read item.
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impl<Q, K> Equivalent<K> for Q
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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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Returns the argument unchanged.

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const ALIGN: usize = _

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type Init = T

The type for initializers.
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