risingwave_storage::hummock::sstable

Struct BloomFilterBuilder

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pub struct BloomFilterBuilder {
    key_hash_entries: Vec<u32>,
    bits_per_key: usize,
}

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§key_hash_entries: Vec<u32>§bits_per_key: usize

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impl BloomFilterBuilder

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pub fn new(bloom_false_positive: f64, capacity: usize) -> Self

Trait Implementations§

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impl FilterBuilder for BloomFilterBuilder

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fn add_key(&mut self, key: &[u8], table_id: u32)

add key which need to be filter for construct filter data.
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fn approximate_len(&self) -> usize

approximate memory of filter builder
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fn finish(&mut self, memory_limiter: Option<Arc<MemoryLimiter>>) -> Vec<u8> ⓘ

Builds Bloom filter from key hashes
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fn create(fpr: f64, capacity: usize) -> Self

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fn approximate_building_memory(&self) -> usize

approximate memory when finish filter
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fn switch_block(&mut self, _memory_limiter: Option<Arc<MemoryLimiter>>)

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fn add_raw_data(&mut self, _raw: Vec<u8>)

Add raw data which build by keys directly. Please make sure that you have finished the last block by calling switch_block
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fn support_blocked_raw_data(&self) -> bool

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