Enum CloneStatus 

pub enum CloneStatus {
    Shadowed,
    Materializing {
        progress_lsn: Lsn,
        bytes_done: u64,
        bytes_total: u64,
    },
    Materialized,
}

Materialization state of a copy-on-write clone.

Exhaustive matches are required everywhere this enum is matched — no _ => arms.

Variants

Shadowed

Reads delegate to source up to as_of_lsn; writes go to target. This is the initial state immediately after a CLONE DATABASE.

Materializing

Background materializer is copying source rows into target storage. Reads still delegate to source for rows not yet copied.

Fields

progress_lsn: Lsn

LSN watermark of the materializer’s current position in the source.

bytes_done: u64

Bytes materialised so far (best-effort estimate).

bytes_total: u64

Total bytes to materialise (best-effort estimate; 0 = unknown).

Materialized

All source rows are physically present in target storage. Source delegation is no longer needed.

Trait Implementations

impl Archive for CloneStatus

where Lsn: Archive, u64: Archive,

type Archived = ArchivedCloneStatus

The archived representation of this type.

type Resolver = CloneStatusResolver

The resolver for this type. It must contain all the additional information from serializing needed to make the archived type from the normal type.

fn resolve( &self, resolver: <Self as Archive>::Resolver, out: Place<<Self as Archive>::Archived>, )

Creates the archived version of this value at the given position and writes it to the given output.

const COPY_OPTIMIZATION: CopyOptimization<Self> = _

An optimization flag that allows the bytes of this type to be copied directly to a writer instead of calling serialize.

impl Clone for CloneStatus

fn clone(&self) -> CloneStatus

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CloneStatus

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

Formats the value using the given formatter.

impl Default for CloneStatus

fn default() -> CloneStatus

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CloneStatus

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<__D: Fallible + ?Sized> Deserialize<CloneStatus, __D> for Archived<CloneStatus>

where Lsn: Archive, <Lsn as Archive>::Archived: Deserialize<Lsn, __D>, u64: Archive, <u64 as Archive>::Archived: Deserialize<u64, __D>,

fn deserialize( &self, deserializer: &mut __D, ) -> Result<CloneStatus, <__D as Fallible>::Error>

Deserializes using the given deserializer

impl<'__msgpack_de> FromMessagePack<'__msgpack_de> for CloneStatus

fn read<R: Read<'__msgpack_de>>(reader: &mut R) -> Result<Self, Error>

where Self: Sized,

Reads the MessagePack representation of this value from the provided reader.

impl PartialEq for CloneStatus

fn eq(&self, other: &CloneStatus) -> 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<__S: Fallible + ?Sized> Serialize<__S> for CloneStatus

where Lsn: Serialize<__S>, u64: Serialize<__S>,

fn serialize( &self, serializer: &mut __S, ) -> Result<<Self as Archive>::Resolver, <__S as Fallible>::Error>

Writes the dependencies for the object and returns a resolver that can create the archived type.

impl Serialize for CloneStatus

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToMessagePack for CloneStatus

fn write<W: Write>(&self, writer: &mut W) -> Result<(), Error>

Writes the MessagePack representation of this value into the provided writer.

impl Eq for CloneStatus

impl StructuralPartialEq for CloneStatus