Enum ConcreteFileVersion 

pub enum ConcreteFileVersion {
    V1,
    V2_0,
    V2_1,
    V2_2,
    V2_3,
}

The exact persisted identity of a Lance file format.

Unlike LanceFileVersion, this type cannot represent release selectors such as stable or next. Exact versions deliberately have no ordering because format capabilities are not implied by release order.

Variants

V1

The legacy v1 file format.

V2_0

The v2.0 file format.

V2_1

The v2.1 file format.

V2_2

The v2.2 file format.

V2_3

The v2.3 file format.

Implementations

impl ConcreteFileVersion

pub fn from_manifest_string(value: &str) -> Result<Self>

Decode the exact version string stored in a dataset manifest.

Public selector aliases such as legacy, 0.3, stable, and next are intentionally rejected because manifests only store canonical exact versions.

pub const fn to_manifest_string(self) -> &'static str

Encode this exact version as the canonical string stored in a dataset manifest.

pub fn from_data_file_numbers(major: u32, minor: u32) -> Result<Self>

Decode the major/minor version stored in DataFile metadata.

Legacy manifests may omit these fields and decode to (0, 0), so all legacy v1 number pairs accepted by the historical decoder remain valid inputs. The historical generic decoder also accepted the standard v2.0 footer pair (0, 3); decoding retains that compatibility while encoding always emits (2, 0).

pub const fn to_data_file_numbers(self) -> (u32, u32)

Encode the canonical major/minor pair stored in DataFile metadata.

pub fn from_footer_numbers(major: u16, minor: u16) -> Result<Self>

Decode the major/minor version stored in a Lance file footer.

V2.0 has two accepted representations: (0, 3) from the standard file writer and (2, 0) from self-described and mini-lance writers.

pub const fn to_standard_footer_numbers(self) -> (u16, u16)

Encode the footer numbers emitted by the standard Lance file writer.

pub const fn to_embedded_footer_numbers(self) -> (u16, u16)

Encode the footer numbers emitted by self-described and mini-lance writers.

Trait Implementations

impl Clone for ConcreteFileVersion

fn clone(&self) -> ConcreteFileVersion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ConcreteFileVersion

impl Debug for ConcreteFileVersion

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

Formats the value using the given formatter.

impl DeepSizeOf for ConcreteFileVersion

fn deep_size_of_children(&self, _context: &mut Context) -> usize

fn deep_size_of(&self) -> usize

impl Display for ConcreteFileVersion

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

Formats the value using the given formatter.

impl Eq for ConcreteFileVersion

impl From<ConcreteFileVersion> for LanceFileVersion

fn from(value: ConcreteFileVersion) -> Self

Converts to this type from the input type.

impl From<LanceFileVersion> for ConcreteFileVersion

fn from(value: LanceFileVersion) -> Self

Converts to this type from the input type.

impl Hash for ConcreteFileVersion

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ConcreteFileVersion

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ConcreteFileVersion