Struct ExplainResult 

pub struct ExplainResult {
    pub plan: QueryPlanSummary,
    pub cost: CostSummary,
    pub joins: Vec<JoinInfo>,
    pub plan_cached: bool,
    pub explanation: String,
}

Result of an EXPLAIN command.

Fields

plan: QueryPlanSummary

The query plan summary.

cost: CostSummary

Cost estimates.

joins: Vec<JoinInfo>

Join strategies used for includes.

plan_cached: bool

Whether the plan was found in cache.

explanation: String

Human-readable explanation text.

Implementations

impl ExplainResult

pub fn new( plan: QueryPlanSummary, cost: CostSummary, joins: Vec<JoinInfo>, plan_cached: bool, explanation: String, ) -> Self

Create a new explain result.

Trait Implementations

impl Archive for ExplainResult

where QueryPlanSummary: Archive, CostSummary: Archive, Vec<JoinInfo>: Archive, bool: Archive, String: 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 = ArchivedExplainResult

The archived representation of this type.

type Resolver = ExplainResultResolver

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 ExplainResult

fn clone(&self) -> ExplainResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExplainResult

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ExplainResult

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<ExplainResult, __D> for Archived<ExplainResult>

where QueryPlanSummary: Archive, <QueryPlanSummary as Archive>::Archived: Deserialize<QueryPlanSummary, __D>, CostSummary: Archive, <CostSummary as Archive>::Archived: Deserialize<CostSummary, __D>, Vec<JoinInfo>: Archive, <Vec<JoinInfo> as Archive>::Archived: Deserialize<Vec<JoinInfo>, __D>, bool: Archive, <bool as Archive>::Archived: Deserialize<bool, __D>, String: Archive, <String as Archive>::Archived: Deserialize<String, __D>,

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

Deserializes using the given deserializer

impl PartialEq for ExplainResult

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

where QueryPlanSummary: Serialize<__S>, CostSummary: Serialize<__S>, Vec<JoinInfo>: Serialize<__S>, bool: Serialize<__S>, String: 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 ExplainResult

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 ExplainResult