Enum DfOlapError 

pub enum DfOlapError {
    DataFusion(DataFusionError),
    Arrow(ArrowError),
    Parquet(ParquetError),
    TableNotFound(String),
    SchemaMismatch(String),
    Io(Error),
    Join(String),
    Other(String),
}

Errors that can occur in the DataFusion OLAP backend.

This enum consolidates errors from DataFusion, Arrow, Parquet, I/O, and (when the cloud-storage feature is enabled) the object_store crate.

Variants

DataFusion(DataFusionError)

An error originating inside the DataFusion query engine.

Arrow(ArrowError)

An Arrow-level error (e.g. schema mismatch during array construction).

Parquet(ParquetError)

A Parquet serialisation or deserialisation error.

TableNotFound(String)

A query or DML statement referenced a table that has not been registered.

SchemaMismatch(String)

The supplied data schema does not match the registered table schema.

Io(Error)

A file-system I/O error (e.g. creating the table directory or writing a file).

Join(String)

A tokio::task::JoinError from a spawn_blocking call.

Other(String)

A catch-all error for situations not covered by the other variants.

Trait Implementations

impl Debug for DfOlapError

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

Formats the value using the given formatter.

impl Display for DfOlapError

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

Formats the value using the given formatter.

impl Error for DfOlapError

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<ArrowError> for DfOlapError

fn from(source: ArrowError) -> Self

Converts to this type from the input type.

impl From<DataFusionError> for DfOlapError

fn from(source: DataFusionError) -> Self

Converts to this type from the input type.

impl From<Error> for DfOlapError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<ParquetError> for DfOlapError

fn from(source: ParquetError) -> Self

Converts to this type from the input type.