Advantages of BTree+ over BTree [duplicate]
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21-09-2019 - |
Question
Possible Duplicate:
B- trees, B+ trees difference
What are the advantages/disadvantages of BTree+ over BTree? When should I prefer one over other? I'm also interested in knowing any real world examples where one has been preferred over other.
Solution
According to the Wikipedia article about BTree+, this kind of data structure is frequently used for indexing block-oriented storage. Apparently, BTree+ stored keys (and not values) are stored in the intermediate nodes. This would mean that you would need fewer intermediate node blocks and would increase the likelihood of a cache hit.
Real world examples include various file systems; see the linked article.
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