You are investigating the performance of a query which selects data from an InnoDB table.

Oracle 1z0-888 Question Answer

Consider this Performance Schema diagnostics output for the query:

Which statement is true about the output?

The time the query took is the sum of all timer_wait values.

The query did not find its table in the table definition cache.

The query read data from the data file rather than directly from the buffer pool.

The event with event_id = 8945 is a child of the event with event_id=8944.

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