Struct mz_adapter::client::ConnClient

pub struct ConnClient {
    build_info: &'static BuildInfo,
    conn_id: ConnectionId,
    inner: Client,
}

A coordinator client that is bound to a connection.

The ConnClient automatically allocates an ID for the connection when it is created, and frees that ID for potential reuse when it is dropped.

See also Client.

Fields

build_info: &'static BuildInfo

conn_id: ConnectionId

inner: Client

Implementations

impl ConnClient

pub fn new_session(&self, user: User) -> Session

Creates a new session associated with this connection for the given user.

It is the caller’s responsibility to have authenticated the user.

pub fn conn_id(&self) -> &ConnectionId

Returns the ID of the connection associated with this client.

pub async fn startup( self, session: Session ) -> Result<(SessionClient, StartupResponse), AdapterError>

Upgrades this connection client to a session client.

A session is a connection that has successfully negotiated parameters, like the user. Most coordinator operations are available only after upgrading a connection to a session.

Returns a new client that is bound to the session and a response containing various details about the startup.

pub fn cancel_request(&mut self, conn_id: ConnectionIdType, secret_key: u32)

Cancels the query currently running on another connection.

Trait Implementations

impl Debug for ConnClient

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

Formats the value using the given formatter.