Enum MetadataFetchErrorKind

#[non_exhaustive]
pub enum MetadataFetchErrorKind {
    InvalidColumnType(TypeCheckError),
    PrepareError(RequestAttemptError),
    SerializationError(SerializationError),
    NextRowError(NextRowError),
}

Specific reason why metadata fetch failed.

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.

InvalidColumnType(TypeCheckError)

Queried table has invalid column type.

PrepareError(RequestAttemptError)

Failed to prepare the statement for metadata fetch.

SerializationError(SerializationError)

Failed to serialize statement parameters.

NextRowError(NextRowError)

Failed to obtain next row from response to the metadata fetch query.

Trait Implementations

impl Clone for MetadataFetchErrorKind

fn clone(&self) -> MetadataFetchErrorKind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MetadataFetchErrorKind

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

Formats the value using the given formatter.

impl Display for MetadataFetchErrorKind

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

Formats the value using the given formatter.

impl Error for MetadataFetchErrorKind

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<NextRowError> for MetadataFetchErrorKind

fn from(source: NextRowError) -> Self

Converts to this type from the input type.

impl From<RequestAttemptError> for MetadataFetchErrorKind

fn from(source: RequestAttemptError) -> Self

Converts to this type from the input type.

impl From<SerializationError> for MetadataFetchErrorKind

fn from(source: SerializationError) -> Self

Converts to this type from the input type.

impl From<TypeCheckError> for MetadataFetchErrorKind

fn from(source: TypeCheckError) -> Self

Converts to this type from the input type.