Trait ClientExt 

pub trait ClientExt: Sized {
    // Required methods
    fn ping(&self) -> impl Future<Output = Result<()>> + Send;
    fn kill_query(
        &self,
        query_id: &str,
    ) -> impl Future<Output = Result<()>> + Send;
    fn with_query_id(self, query_id: impl Into<String>) -> Self;
    fn with_session_id(self, session_id: impl Into<String>) -> Self;
    fn with_role(self, role: impl Into<String>) -> Self;
}

Available on crate feature ext only.

Statement-level controls upstream’s Client carries only as raw settings. Sized because the with_* methods consume and return the client.

Required Methods

fn ping(&self) -> impl Future<Output = Result<()>> + Send

SELECT 1; errors on a transport failure or a bad credential.

fn kill_query(&self, query_id: &str) -> impl Future<Output = Result<()>> + Send

Stop query_id and wait; matching nothing is not an error.

fn with_query_id(self, query_id: impl Into<String>) -> Self

What system.query_log records and Self::kill_query matches on.

fn with_session_id(self, session_id: impl Into<String>) -> Self

Bind statements to a session, so SET and temp tables survive between.

fn with_role(self, role: impl Into<String>) -> Self

Run statements under role. Client::with_default_roles clears it.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl ClientExt for Client

async fn ping(&self) -> Result<()>

async fn kill_query(&self, query_id: &str) -> Result<()>

fn with_query_id(self, query_id: impl Into<String>) -> Self

fn with_session_id(self, session_id: impl Into<String>) -> Self

fn with_role(self, role: impl Into<String>) -> Self

Implementors