Skip to main content

ExplainPlan

Struct ExplainPlan 

Source
pub struct ExplainPlan {
    pub mode: QueryMode,
    pub access: ExplainAccessPath,
    pub predicate: ExplainPredicate,
    pub order_by: ExplainOrderBy,
    pub distinct: bool,
    pub grouping: ExplainGrouping,
    pub order_pushdown: ExplainOrderPushdown,
    pub page: ExplainPagination,
    pub delete_limit: ExplainDeleteLimit,
    pub consistency: MissingRowPolicy,
    /* private fields */
}
Expand description

ExplainPlan

Stable, deterministic representation of a planned query for observability.

Fields§

§mode: QueryMode§access: ExplainAccessPath§predicate: ExplainPredicate§order_by: ExplainOrderBy§distinct: bool§grouping: ExplainGrouping§order_pushdown: ExplainOrderPushdown§page: ExplainPagination§delete_limit: ExplainDeleteLimit§consistency: MissingRowPolicy

Implementations§

Source§

impl ExplainPlan

Source

pub fn fingerprint(&self) -> PlanFingerprint

Compute a stable fingerprint for this explain plan.

Source§

impl ExplainPlan

Source

pub fn continuation_signature( &self, entity_path: &'static str, ) -> ContinuationSignature

Compute the continuation signature for this explain plan.

Included fields:

  • entity path
  • mode (load/delete)
  • access path
  • normalized predicate
  • canonical order-by (including implicit PK tie-break)
  • distinct flag
  • grouped shape (group keys, aggregate terminals, grouped limits)
  • projection identity section (semantic projection hash when available)

Excluded fields:

  • pagination window (limit, offset)
  • delete limits
  • cursor boundary/token state

Trait Implementations§

Source§

impl Clone for ExplainPlan

Source§

fn clone(&self) -> ExplainPlan

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for ExplainPlan

Source§

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

Formats the value using the given formatter. Read more
Source§

impl PartialEq for ExplainPlan

Source§

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

impl Eq for ExplainPlan

Source§

impl StructuralPartialEq for ExplainPlan

Auto Trait Implementations§

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

Source§

fn vzip(self) -> V