Enum EvalError 

pub enum EvalError {
    RowCountMismatch {
        columns: u32,
        alive: u32,
    },
    UnknownColumn(ColumnId),
    TypeMismatch {
        column: ColumnId,
        expected: ColumnType,
        actual: ColumnType,
    },
    RangeRequiresNumericColumn(ColumnId),
}

A typed predicate-evaluation failure.

Variants

RowCountMismatch

The alive set and column store describe different document spaces.

Fields

columns: u32

Number of metadata rows.

alive: u32

Number of rows tracked by the alive set.

UnknownColumn(ColumnId)

The predicate referred to a column absent from the schema.

TypeMismatch

A query value did not match the declared column type.

Fields

column: ColumnId

The mismatched column.

expected: ColumnType

The declared physical type.

actual: ColumnType

The supplied query value type.

RangeRequiresNumericColumn(ColumnId)

Range predicates are limited to numeric columns.

Trait Implementations

impl Clone for EvalError

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 EvalError

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

Formats the value using the given formatter.

impl Display for EvalError

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

Formats the value using the given formatter.

impl Eq for EvalError

impl Error for EvalError

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 PartialEq for EvalError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EvalError