Struct JoinInfo 

pub struct JoinInfo {
    pub path: String,
    pub strategy: JoinStrategyType,
    pub reason: String,
    pub parent_count: u64,
    pub child_count: u64,
}

Information about a join strategy.

Fields

path: String

Relation path being joined.

strategy: JoinStrategyType

Join strategy selected.

reason: String

Reason for selecting this strategy.

parent_count: u64

Estimated parent count.

child_count: u64

Estimated child count.

Implementations

impl JoinInfo

pub fn new( path: impl Into<String>, strategy: JoinStrategyType, reason: impl Into<String>, parent_count: u64, child_count: u64, ) -> Self

Create a new join info.

Trait Implementations

impl Archive for JoinInfo

where String: Archive, JoinStrategyType: Archive, u64: Archive,

const COPY_OPTIMIZATION: CopyOptimization<Self>

An optimization flag that allows the bytes of this type to be copied directly to a writer instead of calling serialize.

type Archived = ArchivedJoinInfo

The archived representation of this type.

type Resolver = JoinInfoResolver

The resolver for this type. It must contain all the additional information from serializing needed to make the archived type from the normal type.

fn resolve(&self, resolver: Self::Resolver, out: Place<Self::Archived>)

Creates the archived version of this value at the given position and writes it to the given output.

impl Clone for JoinInfo

fn clone(&self) -> JoinInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JoinInfo

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for JoinInfo

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<__D: Fallible + ?Sized> Deserialize<JoinInfo, __D> for Archived<JoinInfo>

where String: Archive, <String as Archive>::Archived: Deserialize<String, __D>, JoinStrategyType: Archive, <JoinStrategyType as Archive>::Archived: Deserialize<JoinStrategyType, __D>, u64: Archive, <u64 as Archive>::Archived: Deserialize<u64, __D>,

fn deserialize( &self, deserializer: &mut __D, ) -> Result<JoinInfo, <__D as Fallible>::Error>

Deserializes using the given deserializer

impl PartialEq for JoinInfo

fn eq(&self, other: &JoinInfo) -> 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<__S: Fallible + ?Sized> Serialize<__S> for JoinInfo

where String: Serialize<__S>, JoinStrategyType: Serialize<__S>, u64: Serialize<__S>,

fn serialize( &self, serializer: &mut __S, ) -> Result<<Self as Archive>::Resolver, <__S as Fallible>::Error>

Writes the dependencies for the object and returns a resolver that can create the archived type.

impl Serialize for JoinInfo

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for JoinInfo