The table_lock_waits_summary_by_table table, along with many other new Performance Schema tables, was added in MariaDB 10.0.table_lock_waits_summary_by_table 表通过表来记录表记录锁定等待。ColumnDescription OBJECT_TYPE Since this table records waits by table, always set to TABLE. OBJECT_SCHEMA...
Thetable_lock_waits_summary_by_tabletable aggregates all table lock wait events, as generated by thewait/lock/table/sql/handlerinstrument. The grouping is by table. This table contains information about internal and external locks: An internal lock corresponds to a lock in the SQL laye...