Performance Schema
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TiDB implements performance schema tables for MySQL compatibility.
Tables for MySQL compatibility
| Table name | Description |
|---|---|
events_stages_current | |
events_stages_history | |
events_stages_history_long | |
events_statements_current | |
events_statements_history | |
events_statements_history_long | |
events_statements_summary_by_digest | |
events_transactions_current | |
events_transactions_history | |
events_transactions_history_long | |
global_status | |
prepared_statements_instances | |
session_connect_attrs | Provides connection attributes for sessions. |
session_status | |
session_variables | |
setup_actors | |
setup_consumers | |
setup_instruments | |
setup_objects |
Tables that are TiDB extensions
| Table name | Description |
|---|---|
pd_profile_allocs | |
pd_profile_block | |
pd_profile_cpu | |
pd_profile_goroutines | |
pd_profile_memory | |
pd_profile_mutex | |
tidb_profile_allocs | |
tidb_profile_block | |
tidb_profile_cpu | |
tidb_profile_goroutines | |
tidb_profile_memory | |
tidb_profile_mutex | |
tikv_profile_cpu |
Performance Schemawas last updated 3/29/2024, 4:54:49 AM: Update and correct information aboud sys.schema_unused_indexes (#16885)