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QueryAdmissionRejection

Enum QueryAdmissionRejection

pub enum QueryAdmissionRejection {
Show 16 variants    PublicQueryRequiresLimit,
    PublicQueryRequiresIndex,
    UnboundedFullScanRejected,
    ScanBoundUnavailable,
    ScanBoundExceedsPolicy,
    EstimatedOnlyBoundRejected,
    SortRequiresMaterialization,
    MaterializationExceedsBudget,
    ProjectionResponseMayExceedLimit,
    GroupedQueryRequiresLimits,
    GroupedQueryExceedsBudget,
    DiagnosticLaneDoesNotExecute,
    IntrospectionDisabledForLane,
    UnsupportedStatementForQueryLane,
    PublicQueryOffsetRejected,
    ReturnedRowBoundExceedsPolicy,
}

Expand description

Stable read-admission rejection reason.

Variants§

PublicQueryRequiresLimit

Public reads require an explicit LIMIT.

PublicQueryRequiresIndex

Public reads require a proven index-backed access path.

UnboundedFullScanRejected

The selected plan is an unbounded full scan.

ScanBoundUnavailable

No scan bound was available for a policy that requires one.

ScanBoundExceedsPolicy

The proven scan bound exceeds the policy.

EstimatedOnlyBoundRejected

Only an estimate was available for a policy that requires proof.

SortRequiresMaterialization

ORDER BY requires materializing rows.

MaterializationExceedsBudget

Materialization exceeds the policy.

ProjectionResponseMayExceedLimit

Projection bytes may exceed the response budget.

GroupedQueryRequiresLimits

Grouped reads need explicit group and memory budgets.

GroupedQueryExceedsBudget

Grouped read planning exceeds the policy.

DiagnosticLaneDoesNotExecute

Diagnostic lanes do not execute rows.

IntrospectionDisabledForLane

Introspection is disabled for the selected lane.

UnsupportedStatementForQueryLane

The statement shape is not supported by the selected lane.

PublicQueryOffsetRejected

Public read endpoints do not permit non-zero OFFSET execution.

ReturnedRowBoundExceedsPolicy

The returned-row bound exceeds the selected policy.

Implementations§

impl QueryAdmissionRejection

pub const fn as_str(self) -> &'static str

Return a stable lowercase diagnostic label for this rejection.

pub const fn code(self) -> QueryReadAdmissionCode

Return the compact diagnostic detail code for this rejection.

pub const fn diagnostic(self) -> Diagnostic

Return a compact diagnostic payload for this rejection.

pub const fn error_code(self) -> ErrorCode

Return the public wire code for this rejection.

Trait Implementations§

impl Clone for QueryAdmissionRejection

fn clone(&self) -> QueryAdmissionRejection

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

impl Copy for QueryAdmissionRejection

impl Debug for QueryAdmissionRejection

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

Formats the value using the given formatter. Read more

impl Eq for QueryAdmissionRejection

impl PartialEq for QueryAdmissionRejection

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

Tests for self and other values to be equal, and is used by ==.

1.0.0 (const: unstable) · 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.

impl StructuralPartialEq for QueryAdmissionRejection

Auto Trait Implementations§

impl Freeze for QueryAdmissionRejection

impl RefUnwindSafe for QueryAdmissionRejection

impl Send for QueryAdmissionRejection

impl Sync for QueryAdmissionRejection

impl Unpin for QueryAdmissionRejection

impl UnsafeUnpin for QueryAdmissionRejection

impl UnwindSafe for QueryAdmissionRejection

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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

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

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

impl<T> Same for T

type Output = T

Should always be Self

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.

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

fn vzip(self) -> V