Struct Session 

pub struct Session {
    pub session_id: SessionId,
    pub principal: AuthenticatedIdentity,
    pub current_database: DatabaseId,
    pub transaction_state: TransactionState,
    pub prepared_statements: BTreeMap<StatementId, PreparedStatementBinding>,
    pub settings: BTreeMap<String, String>,
    pub read_your_writes_token: Option<HlcTimestamp>,
    pub last_activity_unix_micros: u64,
}

The server-side state of one client session (S1D-004).

Data only: a session owns no storage, no executor state, and no admission slots — it is the lightweight record those subsystems key off.

Fields

session_id: SessionId

Server-allocated identifier of this session.

principal: AuthenticatedIdentity

Authenticated identity the session acts as; fixed at session open.

current_database: DatabaseId

Database the session’s statements resolve against.

transaction_state: TransactionState

Active transaction, if any.

prepared_statements: BTreeMap<StatementId, PreparedStatementBinding>

Prepared statements live on this session, by handle.

settings: BTreeMap<String, String>

Session settings (e.g. timezone, statement_timeout); keys and values are adapter-defined, unknown keys are ignored by the server.

read_your_writes_token: Option<HlcTimestamp>

Read-your-writes token: the highest commit timestamp this session has durably observed; subsequent reads wait for visibility up to it.

last_activity_unix_micros: u64

Last activity, wall-clock microseconds since the Unix epoch (same time base as crate::request::ExecuteRequest::deadline_unix_micros); idle reaping (S1D-007) keys off this.

Implementations

impl Session

pub fn new( session_id: SessionId, principal: AuthenticatedIdentity, current_database: DatabaseId, now_unix_micros: u64, ) -> Self

Opens a fresh session: no active transaction, no prepared statements, default settings, no read-your-writes token yet.

Trait Implementations

impl Clone for Session

fn clone(&self) -> Session

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Session

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Session

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Session

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Session

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Session