MySQL 8 Administrator???s Guide

Caching mechanism

One of the easiest ways to start leveraging caching in memcached is to use a two-column table; you can leverage namespaces provided by memcached, which basically adds prefixes. The first columns would be a primary key, and database schema should be the address requirement of a unique identifier with the help of primary key mapping along with unique constraints. In case you want to have a single item value by combining multiple column values, you should make sure you choose appropriate data types.

Queries with a single WHERE clause can be mapped easily into memcached lookups while using = or IN operators in the queries themselves. In cases where multiple WHERE clauses are used or complex operations are parsed, such as <