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Xiaobian to share with you what is the difference between B tree and hash index in mysql, I believe most people still do not know how, so share this article for everyone's reference, I hope you have a lot of gains after reading this article, let's go and find out together!

Understanding B-trees and hash data structures helps predict query performance on these storage engines that use different index data structures, especially for MEMORY storage engines, which allow you to choose either B-trees or hashes as indexes.

1. B-tree index feature

B-tree indexes can be used in using the comparison of columns =,>,>=,

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