Enum DynViewError 

pub enum DynViewError {
    RowOutOfBounds {
        row: usize,
        len: usize,
    },
    ColumnOutOfBounds {
        column: usize,
        width: usize,
    },
    SchemaMismatch {
        column: usize,
        field: String,
        expected: DataType,
        actual: DataType,
    },
    TypeMismatch {
        column: usize,
        path: String,
        expected: DataType,
        actual: DataType,
    },
    UnexpectedNull {
        column: usize,
        path: String,
    },
    Invalid {
        column: usize,
        path: String,
        message: String,
    },
}

Errors that can occur when constructing dynamic views over Arrow data.

Variants

RowOutOfBounds

Requested row index exceeded the batch length.

Fields

row: usize

Provided row index.

len: usize

Total number of rows in the batch.

ColumnOutOfBounds

Requested column index exceeded the schema width.

Fields

column: usize

Provided column index.

width: usize

Number of columns in the schema.

SchemaMismatch

Column schema did not match the array data type present in the RecordBatch.

Fields

column: usize

Column index.

field: String

Column field name.

expected: DataType

Expected Arrow data type.

actual: DataType

Actual Arrow data type encountered.

TypeMismatch

Array downcast failed due to an unexpected runtime type.

Fields

column: usize

Column index.

path: String

Dot/segment annotated path within the column.

expected: DataType

Expected Arrow data type.

actual: DataType

Actual Arrow data type encountered.

UnexpectedNull

Encountered a null value where a non-null was required.

Fields

column: usize

Column index.

path: String

Dot/segment annotated path within the column.

Invalid

Invalid data encountered while materializing a view.

Fields

column: usize

Column index.

path: String

Dot/segment annotated path within the column.

message: String

Explanation of the invalid condition.

Trait Implementations

impl Debug for DynViewError

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

Formats the value using the given formatter.

impl Display for DynViewError

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

Formats the value using the given formatter.

impl Error for DynViewError

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.