Enum QueryError 

#[non_exhaustive]
pub enum QueryError {
    Empty,
    Unsupported {
        message: String,
    },
    PropertyTypeMismatch {
        expected: PropertyType,
        actual: PropertyType,
    },
    WrongPropertyFamily {
        expected: PropertyFamily,
        actual: PropertyFamily,
    },
    InvalidProjection {
        message: String,
    },
    Traversal {
        reason: &'static str,
    },
    MissingProperty {
        key: PropertyKeyId,
    },
    ValueOutOfRange,
    NoEqualityIndex {
        key: PropertyKeyId,
    },
}

Errors from query and read validation: query text, property schema checks, projections, and traversals.

Performance

Formatting is O(message length).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Empty

Query text is empty.

Unsupported

Query text is outside the pinned profile.

Fields

message: String

Deterministic explanation.

PropertyTypeMismatch

Property value type mismatched the catalog schema.

Fields

expected: PropertyType

Expected property type.

actual: PropertyType

Actual property type.

WrongPropertyFamily

Property subject family mismatched the catalog schema.

Fields

expected: PropertyFamily

Expected subject family.

actual: PropertyFamily

Actual subject family.

InvalidProjection

Projection cannot be materialized as requested.

Fields

message: String

Deterministic validation message.

Traversal

A bounded traversal failed.

Fields

reason: &'static str

Deterministic reason the traversal failed.

MissingProperty

A required property was absent from a subject.

Fields

key: PropertyKeyId

The property key that was required but absent.

ValueOutOfRange

A numeric value was outside the representable i64 range.

NoEqualityIndex

A property key has no associated equality index.

Fields

key: PropertyKeyId

The property key lacking an equality index.

Trait Implementations

impl Debug for QueryError

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

Formats the value using the given formatter.

impl Display for QueryError

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

Formats the value using the given formatter.

impl Error for QueryError

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<QueryError> for DbError

fn from(error: QueryError) -> Self

Converts to this type from the input type.