The MySQL C API includes functions enabling threaded client applications to be written. These functions provide control over thread initialization and termination with the client. See alsoSection 3.4, “Writing C API Threaded Client Programs”.

Another C API function,mysql_thread_id(), has“thread” in its name but is not used for client threading purposes. Instead, it returns the ID of the server thread associated with the client, much like theCONNECTION_ID() SQL function. SeeSection 5.4.85, “mysql_thread_id()”.