Performance Schema setup_objects Table
MariaDB starting with 10.0
setup_objects table determines whether objects are monitored by the performance schema or not. By default limited to 100 rows, this can be changed by setting the performance_schema_setup_objects_size system variable when the server starts.
It contains the following columns:
|Type of object to instrument, currently only . Currently, only |
|Schema containing the object, either the literal or |
|Name of the instrumented object, either the literal or |
|Whether the object's events are instrumented or not. Can be disabled, in which case monitoring is not enabled for those objects.|
|Whether the object's events are timed or not. Can be modified.|
When the Performance Schema looks for matches in the
setup_objects, there may be more than one row matching, with different
TIMED values. It looks for the most specific matches first, that is, it will first look for the specific database and table name combination, then the specific database, only then falling back to a wildcard for both.
Rows can be added or removed from the table, while for existing rows, only the
ENABLED columns can be updated. By default, all tables except those in the
mysql databases are instrumented.