Struct QueryCache

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pub struct QueryCache { /* private fields */ }

Expand description

Query cache.

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impl QueryCache

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pub fn new(config: CacheConfig) -> Self

Create a new query cache.

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pub fn get(&self, query: &Statement) -> Option<Vec<RecordBatch>>

Get cached result.

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pub fn put(&self, query: &Statement, result: Vec<RecordBatch>)

Put result in cache.

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pub fn invalidate(&self, query: &Statement)

Invalidate cache entry.

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pub fn clear(&self)

Clear all cache entries.

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pub fn statistics(&self) -> CacheStatistics

Get cache statistics.

Auto Trait Implementations§

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impl !UnwindSafe for QueryCache

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

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Calls U::from(self).

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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where F: FnOnce(&Self) -> bool,

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