Enum IsolationLevel 

pub enum IsolationLevel {
    ReadCommitted,
    RepeatableRead,
    Serializable,
}

Transaction isolation levels.

Deserialized from the spelling the documentation uses ("serializable", "read committed"), not from the Rust variant name, so a role_settings entry reads the same as the environment variable.

Variants

ReadCommitted

PostgreSQL’s default. A statement sees rows committed before it began.

RepeatableRead

Every statement in the transaction sees the same snapshot.

Serializable

As RepeatableRead, and concurrent transactions are additionally guaranteed to be equivalent to some serial order. May abort with a serialization failure, which the client is expected to retry.

Implementations

impl IsolationLevel

pub fn to_sql(&self) -> &'static str

The spelling PostgreSQL’s SET TRANSACTION ISOLATION LEVEL expects.

pub fn parse_config(s: &str) -> Option<Self>

Parse the spelling used in configuration.

Case-insensitive, and a hyphen, underscore or space separates the words equally – the documentation writes read committed and an environment file is as likely to carry read-committed.

pub fn as_config_str(&self) -> &'static str

The inverse of parse_config.

Trait Implementations

impl Clone for IsolationLevel

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IsolationLevel

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for IsolationLevel

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Eq for IsolationLevel

impl PartialEq for IsolationLevel

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for IsolationLevel

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for IsolationLevel