Struct Update 

pub struct Update {
    pub removed_fragment_ids: Vec<u64>,
    pub updated_fragments: Vec<DataFragment>,
    pub new_fragments: Vec<DataFragment>,
    pub fields_modified: Vec<u32>,
    pub merged_generations: Vec<MergedGeneration>,
    pub fields_for_preserving_frag_bitmap: Vec<u32>,
    pub update_mode: i32,
    pub inserted_rows: Option<KeyExistenceFilter>,
}

An operation that updates rows but does not add or remove rows.

Fields

removed_fragment_ids: Vec<u64>

The fragments that have been removed. These are fragments where all rows have been updated and moved to a new fragment.

updated_fragments: Vec<DataFragment>

The fragments that have been updated.

new_fragments: Vec<DataFragment>

The new fragments where updated rows have been moved to.

fields_modified: Vec<u32>

The ids of the fields that have been modified.

merged_generations: Vec<MergedGeneration>

/ List of MemWAL region generations to mark as merged after this transaction

fields_for_preserving_frag_bitmap: Vec<u32>

/ The fields that used to judge whether to preserve the new frag’s id into / the frag bitmap of the specified indices.

update_mode: i32

The mode of update

inserted_rows: Option<KeyExistenceFilter>

Filter for checking existence of keys in newly inserted rows, used for conflict detection. Only tracks keys from INSERT operations during merge insert, not updates.

Implementations

impl Update

pub fn update_mode(&self) -> UpdateMode

Returns the enum value of update_mode, or the default if the field is set to an invalid enum value.

pub fn set_update_mode(&mut self, value: UpdateMode)

Sets update_mode to the provided enum value.

Trait Implementations

impl Clone for Update

fn clone(&self) -> Update

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Update

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

Formats the value using the given formatter.

impl Default for Update

fn default() -> Self

Returns the “default value” for a type.

impl Message for Update

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl Name for Update

const NAME: &'static str = "Update"

Simple name for this Message. This name is the same as it appears in the source .proto file, e.g. FooBar.

const PACKAGE: &'static str = "lance.table"

Package name this message type is contained in. They are domain-like and delimited by ., e.g. google.protobuf.

fn full_name() -> String

Fully-qualified unique name for this Message. It’s prefixed with the package name and names of any parent messages, e.g. google.rpc.BadRequest.FieldViolation. By default, this is the package name followed by the message name. Fully-qualified names must be unique within a domain of Type URLs.

fn type_url() -> String

Type URL for this Message, which by default is the full name with a leading slash, but may also include a leading domain name, e.g. type.googleapis.com/google.profile.Person. This can be used when serializing into the google.protobuf.Any type.

impl PartialEq for Update

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