Enum WriteKey 

pub enum WriteKey {
    Row {
        table_id: u64,
        row_id: u64,
    },
    Unique {
        table_id: u64,
        index_id: u16,
        key_hash: u64,
    },
    Table {
        table_id: u64,
    },
}

A write-set key broad enough to detect all write–write conflicts under snapshot isolation (spec §8.3, review fix #13).

Variants

Row

Row-version key for updates/deletes of existing rows.

Fields

table_id: u64

row_id: u64

Unique

Unique/PK key for inserts/updates touching a UNIQUE column.

Fields

table_id: u64

index_id: u16

key_hash: u64

Table

Table-scope key for TRUNCATE/DROP/ALTER and any txn writing that table.

Fields

table_id: u64

Trait Implementations

impl Clone for WriteKey

fn clone(&self) -> WriteKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WriteKey

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

Formats the value using the given formatter.

impl Eq for WriteKey

impl Hash for WriteKey

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 WriteKey

fn eq(&self, other: &Self) -> 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.