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• 18:07, 17 May 2024 Carli talk contribs created page Index Compression (Created page with "== Memory-Efficient Indices for In-Memory Storages == Most databases implement indices as a kind of tree. I will show you that columnar storages can do even better. The most widely used kind of tree structure in databases is the B-Tree. A B-Tree is a n-ary tree whose nodes fit exactly into one „page“ – may it be a cache line of 64 bytes or a HDD page of 512 bytes or a memory page of 4K. The advantage of btrees is that it balances the memory fetch time with the ti...") Tag: Visual edit