Struct mz_expr::WindowFrame

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pub struct WindowFrame {
    pub units: WindowFrameUnits,
    pub start_bound: WindowFrameBound,
    pub end_bound: WindowFrameBound,
}
Expand description

Describe a window frame, e.g. RANGE UNBOUNDED PRECEDING or ROWS BETWEEN 5 PRECEDING AND CURRENT ROW.

Window frames define a subset of the partition , and only a subset of window functions make use of the window frame.

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§units: WindowFrameUnits

ROWS, RANGE or GROUPS

§start_bound: WindowFrameBound

Where the frame starts

§end_bound: WindowFrameBound

Where the frame ends

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impl WindowFrame

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pub fn default() -> Self

Return the default window frame used when one is not explicitly defined

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fn includes_current_row(&self) -> bool

Trait Implementations§

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impl Arbitrary for WindowFrame

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type Parameters = (<WindowFrameUnits as Arbitrary>::Parameters, <WindowFrameBound as Arbitrary>::Parameters, <WindowFrameBound 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<(<WindowFrameUnits as Arbitrary>::Strategy, <WindowFrameBound as Arbitrary>::Strategy, <WindowFrameBound as Arbitrary>::Strategy), fn(_: (WindowFrameUnits, WindowFrameBound, WindowFrameBound)) -> WindowFrame>

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 WindowFrame

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fn clone(&self) -> WindowFrame

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 Debug for WindowFrame

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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 WindowFrame

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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 Display for WindowFrame

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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 Hash for WindowFrame

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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 WindowFrame

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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 WindowFrame

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fn cmp(&self, other: &WindowFrame) -> 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 WindowFrame

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

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

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 WindowFrame

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fn partial_cmp(&self, other: &WindowFrame) -> 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

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

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

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

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl RustType<ProtoWindowFrame> for WindowFrame

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fn into_proto(&self) -> ProtoWindowFrame

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

Consume and convert a Proto back into a Self value. Read more
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fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.
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impl Serialize for WindowFrame

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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 Eq for WindowFrame

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impl StructuralPartialEq for WindowFrame

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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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Performs the cast.
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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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impl<Q, K> Comparable<K> for Q
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fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
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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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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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