Multithreading in MySQL? -

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are mysql operations multithreaded?

specifically, on running select, select (or join) algorithm spawn multiple threads run together? being multi-threaded prevent being able support lot of concurrent users?

several background threads run in mysql server. also, each database connection served single thread. parallel queries (selects using multiple threads) not implemented in mysql.

mysql can support "a lot of concurrent useres". example facebook started mysql.


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