The primary key is created automatically and there is an index "primary" in it, it is a hash or b-tree.
The CB-Tree is bound and not hash.
Therefore, if it is a "primary" B-tree, I can ask it with a category selection.
Thursday, 15 March 2012
database - mysql primary key,is it a hash index or b-tree? -
As long as you have the MEMORY access method, the form of your MySQL indexed BTRI Are organized in and class scans can be suitable for query.
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