Struct OwnedPending 

pub struct OwnedPending { /* private fields */ }

Incremental execution of a prepared statement, one task at a time. An owned pending execution: like PendingResult but it owns its CachedStatement instead of borrowing one, so it carries no lifetime and is 'static.

This is what lets the async adapter step a query one task per spawn_blocking dispatch — the whole OwnedPending moves in and out of each blocking task, which a borrow-based PendingResult could not do.

Implementations

impl OwnedPending

pub fn execute_task(&mut self) -> PendingState

Executes a single task, returning the resulting PendingState.

pub fn error(&self) -> Option<String>

Returns DuckDB’s current error message, if any.

pub fn execute(self) -> Result<DuckResult>

Runs to completion and returns the materialised DuckResult, consuming self so the result is transferred exactly once.

Errors

Returns Error::Engine carrying DuckDB’s classification/message on failure.

Trait Implementations

impl Drop for OwnedPending

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl Send for OwnedPending