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• 20:10, 4 September 2022 Will talk contribs created page Mysql indexes (Created page with "Indexes use various datastructures to store data to prevent full scans of all rows in the table. = Index Types = <blockquote> == BTree == A binary tree. Default for persisted storage engines. Optimize Queries that are * sorted * field prefixes * range (less than 10, between C and F) But not queries * field suffixes == Hash == A hash table. Default for the memory engine.<br> hash-collisions are accounted for, but each key with the same hash will need to be checked...")