Struct mz_stash::Stash

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pub struct Stash {
    pub metrics: Arc<Metrics>,
    /* private fields */
}
Expand description

A Stash whose data is stored in a Postgres-compatible database. The format of the tables are not specified and should not be relied upon. The only promise is stability. Any changes to the table schemas will be accompanied by a clear migration path.

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§metrics: Arc<Metrics>

Implementations§

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impl Stash

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pub async fn clear(url: &str, tls: MakeTlsConnector) -> Result<(), StashError>

Drops all tables associated with the stash if they exist. Only used in tests and benchmarks.

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pub async fn with_debug_stash<F, T, Fut>(f: F) -> Result<T, StashError>
where F: FnOnce(Stash) -> Fut, Fut: Future<Output = T>,

Creates a debug stash from the current COCKROACH_URL with a random schema, and DROPs it after f has returned.

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pub async fn set_connect_timeout(&mut self, connect_timeout: Duration)

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impl Stash

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pub async fn collections(&mut self) -> Result<BTreeMap<i64, String>, StashError>

Returns a mapping from stash collection Id to stash collection name.

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pub async fn confirm_leadership(&mut self) -> Result<(), StashError>

Returns Ok if the stash is the current leader and an error otherwise.

Note: This can be optimized to not increment the version, which is done automatically via with_commit. It will probably be more efficient to retry an in-determinate read-only transaction than relying on incrementing the version.

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pub fn is_writeable(&self) -> bool

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pub fn is_readonly(&self) -> bool

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pub fn is_savepoint(&self) -> bool

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pub fn epoch(&self) -> Option<NonZeroI64>

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impl Stash

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pub async fn with_transaction<F, T>(&mut self, f: F) -> Result<T, StashError>
where F: FnOnce(Transaction<'_>) -> BoxFuture<'_, Result<T, StashError>> + Clone + Sync + Send + 'static,

Transactionally executes closure f.

Trait Implementations§

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impl Debug for Stash

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl !RefUnwindSafe for Stash

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impl Send for Stash

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impl Sync for Stash

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impl Unpin for Stash

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impl !UnwindSafe for Stash

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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Performs the cast.
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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Dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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