As of MySQL 8.0.16,
            ps_thread_id() is deprecated
            and subject to removal in a future MySQL version.
            Applications that use it should be migrated to use the
            built-in PS_THREAD_ID() and
            PS_CURRENT_THREAD_ID()
            functions instead. See
            Section 14.21, “Performance Schema Functions”
          Returns the Performance Schema thread ID assigned to a given
          connection ID, or the thread ID for the current connection if
          the connection ID is NULL.
- in_connection_id BIGINT UNSIGNED: The ID of the connection for which to return the thread ID. This is a value of the type given in the- PROCESSLIST_IDcolumn of the Performance Schema- threadstable or the- Idcolumn of- SHOW PROCESSLISToutput.