Enum ParquetReaderError 

pub enum ParquetReaderError {
    ParquetError(String),
    ColumnNotFound {
        column_name: String,
        available: Vec<String>,
    },
    TypeMismatch {
        column_name: String,
        arrow_type: String,
        expected_type: String,
    },
    ConversionError {
        column_name: String,
        row: usize,
        message: String,
    },
}

Error type for Parquet reader operations.

Variants

ParquetError(String)

I/O or format error from the Parquet/Arrow layer.

ColumnNotFound

Schema mismatch: a column name from the catalog was not found in the file.

Fields

column_name: String

available: Vec<String>

TypeMismatch

Type mismatch: column exists but has incompatible type.

Fields

column_name: String

arrow_type: String

expected_type: String

ConversionError

Row-level conversion error.

Fields

column_name: String

row: usize

message: String

Trait Implementations

impl Debug for ParquetReaderError

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

Formats the value using the given formatter.

impl Display for ParquetReaderError

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

Formats the value using the given formatter.

impl Error for ParquetReaderError

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 ParquetReaderError

fn from(e: ArrowError) -> Self

Converts to this type from the input type.

impl From<ParquetError> for ParquetReaderError

fn from(e: ParquetError) -> Self

Converts to this type from the input type.