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Bloom filters: a simple structure for speeding up searches in sets, hash maps, and trees. They're a great tool for avoiding unnecessary disk reads in databases, as they can quickly confirm that a key does not exist in a data set. Clip from yesterday's stream.

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Ben Dicken

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36,085 views • 5 months ago •via X (Twitter)

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LSMs are fun because they combine a bunch of data structures into one! Trees / skip-lists as the storage format. Bloom filters for faster lookups. Priority queues for efficient merges. A little clip from last week's stream showing how the latter works for LSM chunk merging.
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LSMs are fun because they combine a bunch of data structures into one! Trees / skip-lists as the storage format. Bloom filters for faster lookups. Priority queues for efficient merges. A little clip from last week's stream showing how the latter works for LSM chunk merging.

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