Enum scylla::transport::legacy_query_result::SingleRowError

pub enum SingleRowError {
    RowsExpected(RowsExpectedError),
    BadNumberOfRows(usize),
}

👎Deprecated since 0.15.1: Legacy deserialization API is inefficient and is going to be removed soon

Variants

RowsExpected(RowsExpectedError)

👎Deprecated since 0.15.1: Legacy deserialization API is inefficient and is going to be removed soon

LegacyQueryResult::single_row() called on a bad LegacyQueryResult.
Expected LegacyQueryResult.rows to be Some, but it was None.
LegacyQueryResult.rows is Some for queries that can return rows (e.g SELECT).
It is None for queries that can’t return rows (e.g INSERT).

BadNumberOfRows(usize)

👎Deprecated since 0.15.1: Legacy deserialization API is inefficient and is going to be removed soon

Expected a single row, found other number of rows

Trait Implementations

impl Clone for SingleRowError

fn clone(&self) -> SingleRowError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SingleRowError

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

Formats the value using the given formatter.

impl Display for SingleRowError

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

Formats the value using the given formatter.

impl Error for SingleRowError

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

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<RowsExpectedError> for SingleRowError

fn from(source: RowsExpectedError) -> Self

Converts to this type from the input type.

impl From<SingleRowError> for SingleRowTypedError

fn from(err: SingleRowError) -> SingleRowTypedError

Converts to this type from the input type.

impl PartialEq for SingleRowError

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for SingleRowError

impl StructuralPartialEq for SingleRowError