Enum OptimizeError 

pub enum OptimizeError {
    UnsupportedNodeType(String),
    MissingStatistics(String),
    CalculationError(String),
    PlanOptimizationError(String),
    RuleApplicationError(String),
    StatisticsError(String),
    IndexSelectionError(String),
    JoinOrderError(String),
    ExpressionTransformError(String),
    InternalError(String),
    HeuristicFailed(String),
    CostBasedFailed(String),
    ConfigurationError(String),
    FactorizationError(FactorizationError),
}

Optimizer error type

Variants

UnsupportedNodeType(String)

Node type not supported

MissingStatistics(String)

Statistical information is missing.

CalculationError(String)

Miscalculation of the costs

PlanOptimizationError(String)

The plan to optimize the errors has failed.

RuleApplicationError(String)

The rule was applied incorrectly.

StatisticsError(String)

There is an error in the statistical information.

IndexSelectionError(String)

The index selection was incorrect.

JoinOrderError(String)

Error in the optimization of the connection sequence.

ExpressionTransformError(String)

Expression conversion error.

InternalError(String)

Internal optimization error

HeuristicFailed(String)

Heuristic optimization failed

CostBasedFailed(String)

Cost-based optimization failed

ConfigurationError(String)

Pipeline configuration error

FactorizationError(FactorizationError)

Factorization invariant violation (plan is malformed).

Carries the structured FactorizationError rather than a flattened string so upstream layers can downcast and react to the specific invariant that was violated, while Display/source still render the full message.

Trait Implementations

impl Clone for OptimizeError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptimizeError

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

Formats the value using the given formatter.

impl Display for OptimizeError

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

Formats the value using the given formatter.

impl Error for OptimizeError

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<CostError> for OptimizeError

fn from(err: CostError) -> Self

Converts to this type from the input type.

impl From<FactorizationError> for OptimizeError

fn from(source: FactorizationError) -> Self

Converts to this type from the input type.