Enum FileConcatReason 

pub enum FileConcatReason {
    LegacyVersion,
    VersionMismatch {
        input_index: usize,
        actual: ConcreteFileVersion,
        expected: ConcreteFileVersion,
    },
    SchemaMismatch {
        input_index: usize,
    },
    ColumnLayoutMismatch {
        input_index: usize,
        column_index: Option<usize>,
    },
    ColumnEncodingMismatch {
        input_index: usize,
        column_index: usize,
    },
    ColumnBuffers {
        input_index: usize,
        column_index: usize,
        count: usize,
    },
    ExtraGlobalBuffers {
        input_index: usize,
        count: usize,
    },
    BlobColumns,
}

A compatibility reason that requires a caller-controlled decode/re-encode fallback.

Variants

LegacyVersion

Lance v1 does not support encoded-file concatenation.

VersionMismatch

An input uses a different exact grammar than the target.

Fields

input_index: usize

Zero-based input position.

actual: ConcreteFileVersion

Version found in the file footer.

expected: ConcreteFileVersion

Version requested by the target.

SchemaMismatch

An input’s persisted schema differs from the target schema.

Fields

input_index: usize

Zero-based input position.

ColumnLayoutMismatch

Inputs do not describe the same physical columns.

Fields

input_index: usize

Zero-based input position.

column_index: Option<usize>

Zero-based physical column when one could be identified.

ColumnEncodingMismatch

A column-level encoding cannot safely combine its buffers.

Fields

input_index: usize

Zero-based input position.

column_index: usize

Zero-based physical column.

ColumnBuffers

A column uses file-level buffers whose page references cannot be relocated.

Fields

input_index: usize

Zero-based input position.

column_index: usize

Zero-based physical column.

count: usize

Number of column buffers referenced by the column metadata.

ExtraGlobalBuffers

A file contains global buffers whose relocation semantics are not defined.

Fields

input_index: usize

Zero-based input position.

count: usize

Number of global buffers, including the schema descriptor.

BlobColumns

The schema contains offsets into external blob storage.

Trait Implementations

impl Clone for FileConcatReason

fn clone(&self) -> FileConcatReason

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FileConcatReason

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

Formats the value using the given formatter.

impl Display for FileConcatReason

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

Formats the value using the given formatter.

impl Eq for FileConcatReason

impl PartialEq for FileConcatReason

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FileConcatReason