Struct ManifestList

pub struct ManifestList { /* private fields */ }

Snapshots are embedded in table metadata, but the list of manifests for a snapshot are stored in a separate manifest list file.

A new manifest list is written for each attempt to commit a snapshot because the list of manifests always changes to produce a new snapshot. When a manifest list is written, the (optimistic) sequence number of the snapshot is written for all new manifest files tracked by the list.

A manifest list includes summary metadata that can be used to avoid scanning all of the manifests in a snapshot when planning a table scan. This includes the number of added, existing, and deleted files, and a summary of values for each field of the partition spec used to write the manifest.

Implementations

impl ManifestList

pub fn parse_with_version( bs: &[u8], version: FormatVersion, partition_type_provider: impl Fn(i32) -> Result<Option<StructType>>, ) -> Result<ManifestList>

Parse manifest list from bytes.

pub fn entries(&self) -> &[ManifestFile]

Get the entries in the manifest list.

pub fn consume_entries(self) -> impl IntoIterator<Item = ManifestFile>

Take ownership of the entries in the manifest list, consuming it

Trait Implementations

impl Clone for ManifestList

fn clone(&self) -> ManifestList

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ManifestList

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

Formats the value using the given formatter.

impl PartialEq for ManifestList

fn eq(&self, other: &ManifestList) -> 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 ManifestList