Enum ColumnarScanError 

pub enum ColumnarScanError {
    Block(ColumnBlockError),
    MissingColumn(u32),
    UnsupportedLogicalType(u8),
    RaggedStream {
        column_id: u32,
        len: usize,
    },
}

Failures decoding a columnar chunk into a ColumnBatch.

Variants

Block(ColumnBlockError)

The underlying RDCC block was malformed (bad magic, CRC, directory…).

MissingColumn(u32)

A requested column id was not present in the chunk’s directory.

UnsupportedLogicalType(u8)

The column’s logical type has no ColumnBatch representation (the batch layer carries only Int64/Float64/Bool/Text). Carries the DataType::to_byte() tag that was rejected.

RaggedStream

A fixed-width numeric stream’s byte length was not a multiple of the element width — the chunk is corrupt.

Fields

column_id: u32

len: usize

Trait Implementations

impl Clone for ColumnarScanError

fn clone(&self) -> ColumnarScanError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ColumnarScanError

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

Formats the value using the given formatter.

impl Eq for ColumnarScanError

impl PartialEq for ColumnarScanError

fn eq(&self, other: &ColumnarScanError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ColumnarScanError