二进制资源占用说明文档-Bitmap_indexes_-_Marko_Kevac.pdf国外的英文版

文件名称: 二进制资源占用说明文档-Bitmap_indexes_-_Marko_Kevac.pdf

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上传时间: 2019-10-15

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详细说明：国外的英文版二进制资源占用PPT分享文档，说明了什么是二进制索引，什么存储，什么检索，有什么样的解决方案Indexes M Indexing approaches Hierarchical division ACRYLIC PAINTS 0|L -trees DAINTS B-trees R-trees O(ogN Indexing approaches Hash mapping NEEDLES MY OLD P N Hash maps Reverse indexes YARN 工 THREADS O(1) BLUE Ut TO (Dill Bits Indexing approaches 66 Instantly knowing Bloom filters MOTEL Cuckoo filters N① VACANCY O(1) Indexing approaches Fully using hardware capabilities Bitmap indexes O(N Why me? o badoo Marko Evac markokevac org Badoo/bumble >400 000 users worldwide 419401351 Realtime matches People on Badoo worldwid Apr3,2000 Searching for the best match for you using bitmap indexes since w 2010. What is a Bitmap IndeX? BitmaP /Bitset ①|0o1011oO11O AND ∏101A0000110」 OR 11o111OO。O1 0O01土000001 Believed to be best for Searches which combine several queries for Small cardinality (few distinct values) different columns that have small cardinality Eye color Gender Marital status Give me results that have this Large cardinality and this or this Distance to the city center and definitely not those Number of likes received

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