Struct mz_adapter::client::ConnClient

pub struct ConnClient { /* private fields */ }

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.

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.