Enum mz_sql::query_model::error::QGMError

pub enum QGMError {
    UnsupportedHirRelationExpr(UnsupportedHirRelationExpr),
    UnsupportedHirScalarExpr(UnsupportedHirScalarExpr),
    UnsupportedBoxType(UnsupportedBoxType),
    UnsupportedBoxScalarExpr(UnsupportedBoxScalarExpr),
    UnsupportedQuantifierType(UnsupportedQuantifierType),
    UnsupportedDecorrelation(UnsupportedDecorrelation),
    Internal(Internal),
}

Errors that can occur while handling a QGM model.

A bunch of the error types exist because our support for HIR ⇒ QGM conversion and QGM ⇒ MIR conversion is currently incomplete. They will be removed once these limitations are addressed.

Variants

UnsupportedHirRelationExpr(UnsupportedHirRelationExpr)

Indicates HIR ⇒ QGM conversion failure due to unsupported HirRelationExpr.

UnsupportedHirScalarExpr(UnsupportedHirScalarExpr)

Indicates HIR ⇒ QGM conversion failure due to unsupported HirScalarExpr.

UnsupportedBoxType(UnsupportedBoxType)

Indicates QGM ⇒ MIR conversion failure due to unsupported box type.

UnsupportedBoxScalarExpr(UnsupportedBoxScalarExpr)

Indicates QGM ⇒ MIR conversion failure due to unsupported scalar expression.

UnsupportedQuantifierType(UnsupportedQuantifierType)

Indicates QGM ⇒ MIR conversion failure due to unsupported quantifier type.

UnsupportedDecorrelation(UnsupportedDecorrelation)

Indicates QGM ⇒ MIR conversion failure due to lack of support for decorrelation.

Internal(Internal)

An unstructured error.

Trait Implementations

impl Clone for QGMError

fn clone(&self) -> QGMError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for QGMError

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

Formats the value using the given formatter.

impl Display for QGMError

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

Formats the value using the given formatter.

impl Error for QGMError

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, demand: &mut Demand<'a>)

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

Provides type based access to context intended for error reports.

impl From<Internal> for QGMError

fn from(inner: Internal) -> Self

Converts to this type from the input type.

impl From<QGMError> for PlanError

fn from(e: QGMError) -> PlanError

Converts to this type from the input type.

impl From<QGMError> for String

fn from(error: QGMError) -> Self

Converts to this type from the input type.

impl From<UnsupportedBoxScalarExpr> for QGMError

fn from(inner: UnsupportedBoxScalarExpr) -> Self

Converts to this type from the input type.

impl From<UnsupportedBoxType> for QGMError

fn from(inner: UnsupportedBoxType) -> Self

Converts to this type from the input type.

impl From<UnsupportedDecorrelation> for QGMError

fn from(inner: UnsupportedDecorrelation) -> Self

Converts to this type from the input type.

impl From<UnsupportedHirRelationExpr> for QGMError

fn from(inner: UnsupportedHirRelationExpr) -> Self

Converts to this type from the input type.

impl From<UnsupportedHirScalarExpr> for QGMError

fn from(inner: UnsupportedHirScalarExpr) -> Self

Converts to this type from the input type.

impl From<UnsupportedQuantifierType> for QGMError

fn from(inner: UnsupportedQuantifierType) -> Self

Converts to this type from the input type.