Add catalog to all tables that has database name and table name
For first version, Performance Schema should only cover instrumentation related to Tables & Table variables. Memory pool keys that are global are not in scope.
If possible, allow one to use performance schema per catalog.
One user using performance schema should not affect users who are not using it.
This can probably be implemented by having a flag in SQL_CATALOG or
SQL_CATALOG->system_variables that defines in performance schema is enabled for
this catalog.
Technical task
Major