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Databases such as City/Country have nested structures that take more time to decode. They also have many networks pointing to the same record, so the cache avoids re-decoding those shared records.
marselester
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within()'s iterator caches recordswithin() iterator caches records
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Databases such as City/Country have nested structures that take more time to decode. They also have many networks pointing to the same record, so the cache avoids re-decoding those shared records. With 16-entry ring buffer we can get ~30%-40% speed up when scanning City/Country databases.