Enum VectorSearchError 

pub enum VectorSearchError {
    Graph(GraphError),
    Cancelled,
    Timeout {
        elapsed: Duration,
    },
    NodeScanBudgetExceeded {
        limit: usize,
        scanned: usize,
    },
    ApproximateIndexMissing,
    ApproximateMetricMismatch {
        indexed: VectorMetric,
        requested: VectorMetric,
    },
    BatchLengthMismatch {
        queries: usize,
        candidate_sets: usize,
    },
}

Error returned by cancellation-aware vector search.

Variants

Graph(GraphError)

Graph storage or metric error.

Cancelled

Caller-requested cancellation was observed.

Timeout

Statement deadline elapsed while vector search was scanning.

Fields

elapsed: Duration

Duration since the deadline elapsed.

NodeScanBudgetExceeded

Deterministic node-scan budget was exceeded.

Fields

limit: usize

Maximum allowed scanned nodes.

scanned: usize

Observed scanned nodes after the batch that crossed the limit.

ApproximateIndexMissing

Approximate search was requested without a matching ANN index.

ApproximateMetricMismatch

Approximate search metric does not match the ANN index metric.

Fields

indexed: VectorMetric

Metric stored in the ANN index.

requested: VectorMetric

Metric requested by the caller.

BatchLengthMismatch

Batched vector input lists do not align one-to-one.

Fields

queries: usize

Query vector count.

candidate_sets: usize

Candidate-set count.

Trait Implementations

impl Debug for VectorSearchError

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

Formats the value using the given formatter.

impl Display for VectorSearchError

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

Formats the value using the given formatter.

impl Error for VectorSearchError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<CancellationCause> for VectorSearchError

fn from(cause: CancellationCause) -> Self

Converts to this type from the input type.

impl From<GraphError> for VectorSearchError

fn from(source: GraphError) -> Self

Converts to this type from the input type.