转自: 土法炼钢:怎么实现一个简单的B+Tree In-Diskwww.cnblogs.com/ohmhong/p/6042925.html 1. 写在前面 说起B+树,大家应该都很熟悉。B+树是一种平衡的多路搜索树,广泛在操作系统和数据库系统用作索引。相比于内存的存取速度,磁盘I/O存取的开销要高上几个数量级。而将B+树用作索引时,它可以在查找过程有效
This is implementation of Bayer Trees, sometime referred to as Balanced Tree and normally used for indices of data bases. These routines provide all stuff that is needed to create and destroy; insert, update and delete; load and destroy; search and traverse; check a tree.Sort huge amounts ...
Merkle trees are not only a useful feature found on the blockchain but in the field of Cyber Security in general. This paper outlines the process of implementing a Merkle tree as a data structure in C++ and then parallelizing it using OpenMP. The final result is a Merkle tree password ...
Rax is a radix tree implementation initially written to be used in a specific place of Redis in order to solve a performance problem, but immediately converted into a stand alone project to make it reusable for Redis itself, outside the initial intended application, and for other projects as ...
btree_new#allocate a new btreebtree_free#free the btreebtree_count#number of items in the btreebtree_set#insert or replace an existing item and return the previousbtree_get#get an existing itembtree_delete#delete and return an itembtree_clone#make an clone of the btree using a copy-on-...
This is the motivation behind the trie. And as you may have guessed, a trie is indeed a tree, a trie tree so to speak! But, contrary to most binary-trees that you’d use for sorting strings, those that would store entire words in their nodes, each node of a trie holds a single ...
species and the changes in color for each species of tree in nine forest sites that exhibited superior visual aesthetic quality. The results showed that the forests with superior visual aesthetic quality were more green, red, and yellow, had moderately higher saturation and value, more obvious ...
Polygenic risk scores (PRSs) have improved in predictive performance, but several challenges remain to be addressed before PRSs can be implemented in the clinic, including reduced predictive performance of PRSs in diverse populations, and the interpretat
See theonline Doxygen documentation hereorthe Wikifor a detailed reference. The Doxygen documentation can be built from the source tree by running: make html Synopsis Use theprotoccommand to generate.pb-c.cand.pb-c.houtput files from your.protoinput file. The--c_outoptions instructsprotocto ...
See theonline Doxygen documentation hereorthe Wikifor a detailed reference. The Doxygen documentation can be built from the source tree by running: make html Synopsis Use theprotoccommand to generate.pb-c.cand.pb-c.houtput files from your.protoinput file. The--c_outoptions instructsprotocto ...