Native table 'performance_schema'.'threads' has the wrong structure
After upgrading a MySQL slave from 5.5 to 5.6.14 I attempted to execute the following query…
SELECT * FROM performance_schema.threads;
Despite the error log not reporting any issues I received the following error…
Native table 'performance_schema'.'threads' has the wrong structure
This was simply resolved by executing…
mysql_upgrade -h localhost -u root -p;
and then restarting the MySQL instance.