Summary tables provide aggregated information for terminated events over time. The tables in this group summarize event data in different ways.
Wait Event Summaries:
events_waits_summary_by_account_by_event_name:
Wait events summarized per account and event name
events_waits_summary_by_host_by_event_name:
Wait events summarized per host name and event name
events_waits_summary_by_instance:
Wait events summarized per instance
events_waits_summary_by_thread_by_event_name:
Wait events summarized per thread and event name
events_waits_summary_by_user_by_event_name:
Wait events summarized per user name and event name
events_waits_summary_global_by_event_name:
Wait events summarized per event name
Stage Summaries:
events_stages_summary_by_account_by_event_name:
Stage events summarized per account and event name
events_stages_summary_by_host_by_event_name:
Stage events summarized per host name and event name
events_stages_summary_by_thread_by_event_name:
Stage waits summarized per thread and event name
events_stages_summary_by_user_by_event_name:
Stage events summarized per user name and event name
events_stages_summary_global_by_event_name:
Stage waits summarized per event name
Statement Summaries:
events_statements_summary_by_account_by_event_name:
Statement events summarized per account and event name
events_statements_summary_by_digest:
Statement events summarized per schema and digest value
events_statements_summary_by_host_by_event_name:
Statement events summarized per host name and event name
events_statements_summary_by_thread_by_event_name:
Statement events summarized per thread and event name
events_statements_summary_by_user_by_event_name:
Statement events summarized per user name and event name
events_statements_summary_global_by_event_name:
Statement events summarized per event name
Object Wait Summaries:
objects_summary_global_by_type:
Object summaries
File I/O Summaries:
file_summary_by_event_name:
File events summarized per event name
file_summary_by_instance: File
events summarized per file instance
Table I/O and Lock Wait Summaries:
table_io_waits_summary_by_index_usage:
Table I/O waits per index
table_io_waits_summary_by_table:
Table I/O waits per table
table_lock_waits_summary_by_table:
Table lock waits per table
Socket Summaries:
socket_summary_by_instance:
Socket waits and I/O summarized per instance
socket_summary_by_event_name:
Socket waits and I/O summarized per event name
Each summary table has grouping columns that determine how to group the data to be aggregated, and summary columns that contain the aggregated values. Tables that summarize events in similar ways often have similar sets of summary columns and differ only in the grouping columns used to determine how events are aggregated.
Summary tables can be truncated with
TRUNCATE TABLE. Generally, the
effect is to reset the summary columns to 0 or
NULL, not to remove rows. This enables you to
clear collected values and restart aggregation. That might be
useful, for example, after you have made a runtime configuration
change. Exceptions to this truncation behavior are noted in
individual summary table sections.