pub(super) struct StashTarget {
persist_clients: Arc<PersistClientCache>,
persist_location: PersistLocation,
peek_uuid: Uuid,
relation_desc: RelationDesc,
}Expand description
Where a peek’s rows go when they may not be answered with inline, and what opening the upload that writes them takes.
A driver holds a target, not an open upload: a walk that never crosses the stash threshold opens no shard and writes no byte, and most walks never do. A driver gets one exactly when its scan was opened stash-eligible, so a walk with no target has a scan that offers no batch.
Fields§
§persist_clients: Arc<PersistClientCache>§persist_location: PersistLocation§peek_uuid: UuidThe peek’s uuid, which the shard the batch belongs to is derived from.
relation_desc: RelationDescThe description the rows are written under, and the one the response reports.
Implementations§
Source§impl StashTarget
impl StashTarget
Sourcepub(super) fn new(
peek: &Peek,
persist_clients: Arc<PersistClientCache>,
persist_location: PersistLocation,
) -> Self
pub(super) fn new( peek: &Peek, persist_clients: Arc<PersistClientCache>, persist_location: PersistLocation, ) -> Self
The stash peek’s rows go to, at persist_location.
Sourcepub(super) async fn open(
&self,
batch_max_runs: usize,
) -> Result<StashUpload, StashError>
pub(super) async fn open( &self, batch_max_runs: usize, ) -> Result<StashUpload, StashError>
Opens the upload, whose batch builder holds at most batch_max_runs runs.
Auto Trait Implementations§
impl !RefUnwindSafe for StashTarget
impl !UnwindSafe for StashTarget
impl Freeze for StashTarget
impl Send for StashTarget
impl Sync for StashTarget
impl Unpin for StashTarget
impl UnsafeUnpin for StashTarget
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