Enum QueryError 

pub enum QueryError {
    ParseError {
        message: String,
        line: usize,
        column: usize,
    },
    SemanticError(String),
    OptimizationError(String),
    ExecutionError(String),
    TypeMismatch {
        expected: String,
        actual: String,
    },
    ColumnNotFound(String),
    TableNotFound(String),
    FunctionNotFound(String),
    InvalidArgument(String),
    IndexNotFound(String),
    IoError(Error),
    InternalError(String),
    Unsupported(String),
    SqlParserError(String),
    CacheError(String),
    ParallelError(String),
}

Errors that can occur during query processing.

Variants

ParseError

Parse error with position information.

Fields

message: String

Error message.

line: usize

Line number (1-based).

column: usize

Column number (1-based).

SemanticError(String)

Semantic error in query.

OptimizationError(String)

Optimization error.

ExecutionError(String)

Execution error.

TypeMismatch

Type mismatch error.

Fields

expected: String

Expected type.

actual: String

Actual type.

ColumnNotFound(String)

Column not found error.

TableNotFound(String)

Table not found error.

FunctionNotFound(String)

Function not found error.

InvalidArgument(String)

Invalid argument error.

IndexNotFound(String)

Index not found error.

IoError(Error)

IO error.

InternalError(String)

Internal error.

Unsupported(String)

Unsupported operation.

SqlParserError(String)

SQL parser error.

CacheError(String)

Cache error.

ParallelError(String)

Parallel execution error.

Implementations

impl QueryError

pub fn parse_error( message: impl Into<String>, line: usize, column: usize, ) -> Self

Create a parse error.

pub fn semantic(message: impl Into<String>) -> Self

Create a semantic error.

pub fn optimization(message: impl Into<String>) -> Self

Create an optimization error.

pub fn execution(message: impl Into<String>) -> Self

Create an execution error.

pub fn type_mismatch( expected: impl Into<String>, actual: impl Into<String>, ) -> Self

Create a type mismatch error.

pub fn internal(message: impl Into<String>) -> Self

Create an internal error.

pub fn unsupported(message: impl Into<String>) -> Self

Create an unsupported operation error.

pub fn code(&self) -> &'static str

Get the error code for this query error

Error codes are stable across versions and can be used for documentation and error handling.

pub fn suggestion(&self) -> Option<&'static str>

Get a helpful suggestion for fixing this query error

Returns a human-readable suggestion including alternative query structures.

pub fn context(&self) -> ErrorContext

Get additional context about this query error

Returns structured context including rule identification and query fragments.

Trait Implementations

impl Debug for QueryError

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

Formats the value using the given formatter.

impl Display for QueryError

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

Formats the value using the given formatter.

impl Error for QueryError

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<Error> for QueryError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<ParserError> for QueryError

fn from(err: ParserError) -> Self

Converts to this type from the input type.