Enum ScanError 

#[non_exhaustive]
pub enum ScanError {
    InvalidRange {
        source: IndexValueError,
        backtrace: Box<Backtrace>,
    },
    InvalidSegmentBounds {
        source: IndexValueError,
        backtrace: Box<Backtrace>,
    },
    Storage {
        path: String,
        source: Box<StorageError>,
    },
    Parquet {
        path: String,
        operation: &'static str,
        source: Box<ParquetError>,
        backtrace: Box<Backtrace>,
    },
    Arrow {
        path: String,
        column: String,
        operation: &'static str,
        source: Box<ArrowError>,
        backtrace: Box<Backtrace>,
    },
    MissingIndexColumn {
        path: String,
        column: String,
        backtrace: Box<Backtrace>,
    },
    IndexColumnTypeMismatch {
        path: String,
        column: String,
        expected: &'static str,
        datatype: Box<DataType>,
        backtrace: Box<Backtrace>,
    },
    TimeConversionOverflow {
        path: String,
        column: String,
        timestamp: DateTime<Utc>,
        backtrace: Box<Backtrace>,
    },
}

Errors from planning or lazily executing a table scan.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

InvalidRange

The requested half-open ordered-index range is invalid.

Fields

source: IndexValueError

Complete range validation error.

backtrace: Box<Backtrace>

Backtrace captured at the scan planning boundary.

InvalidSegmentBounds

Persisted segment bounds cannot be ordered in the table’s index domain.

Fields

source: IndexValueError

Complete segment bounds error.

backtrace: Box<Backtrace>

Backtrace captured at the scan planning boundary.

Storage

Opening a segment from storage failed during lazy scan execution.

Fields

path: String

Table-relative segment path.

source: Box<StorageError>

Complete storage error.

Parquet

Reading Parquet metadata or batches failed.

Fields

path: String

Table-relative segment path.

operation: &'static str

Parquet operation that failed.

source: Box<ParquetError>

Complete Parquet error.

backtrace: Box<Backtrace>

Backtrace captured at the scan boundary.

Arrow

An Arrow compute operation failed while filtering a batch.

Fields

path: String

Table-relative segment path.

column: String

Configured ordered-index column.

operation: &'static str

Arrow operation that failed.

source: Box<ArrowError>

Complete Arrow error.

backtrace: Box<Backtrace>

Backtrace captured at the scan boundary.

MissingIndexColumn

A segment is missing the configured ordered-index column.

Fields

path: String

Table-relative segment path.

column: String

Configured ordered-index column.

backtrace: Box<Backtrace>

Backtrace captured at the scan boundary.

IndexColumnTypeMismatch

A segment’s ordered-index Arrow type disagrees with the table index.

Fields

path: String

Table-relative segment path.

column: String

Configured ordered-index column.

expected: &'static str

Registered ordered-index domain.

datatype: Box<DataType>

Arrow type found in the segment.

backtrace: Box<Backtrace>

Backtrace captured at the scan boundary.

TimeConversionOverflow

Converting a timestamp bound to the segment’s unit would overflow i64.

Fields

path: String

Table-relative segment path.

column: String

Configured ordered-index column.

timestamp: DateTime<Utc>

Timestamp that could not be represented.

backtrace: Box<Backtrace>

Backtrace captured at the scan boundary.

Trait Implementations

impl Debug for ScanError

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

Formats the value using the given formatter.

impl Display for ScanError

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

Formats the value using the given formatter.

impl Error for ScanError

where Self: Debug + Display,

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 ErrorCompat for ScanError

fn backtrace(&self) -> Option<&Backtrace>

Returns a Backtrace that may be printed.

fn iter_chain(&self) -> ChainCompat<'_, '_>

where Self: AsErrorSource,

Returns an iterator for traversing the chain of errors, starting with the current error and continuing with recursive calls to Error::source.